Hi
Just came accross you message board was hoping someone might enlighten me
I have a 99 F-350 Powerstroke that runs like crap .
I have played the parts changer and did the commen stuff.
Here's what i got rolling idle low power hesataion from stop sounds like it is missing when first take off. Seeems to smooth out after higher rpms
Here's what i did cam sensor , IPR , ICP , IDM Fuel press 65 psi.
Can anyone point me in a new direstion?
Please Help
A&L

 

Is it setting a light?


Warm or cold ?.


Can you log any real time data ?

 

Welcome to the board. I agree with Rick as to the need for a little bit more information. How many miles?
How long has it been running this way?
Does the Check Engine light or Service Engine Soon (SES) light come on?
Have you had any codes pulled recently?
Have you checked the Under Valve Cover Harnesses (UVCH)?

 

No codes been running like this for awhile did not take it to a dealer yet
No did not check under V/C
156000 miles temp does not matter warm and cold runs bad
I have to tell you i did by it this way knowing there was trouble so i do not know the complete history of it
There were a buch of codes in it at first but none returned after i cleared them.
Thanks for the welcome and the fast responce
A & L

 

There is a lot of testing for a rolling idle. So much it won't fit in one response.

AF1 PRELIMINARY CHECKS

• Perform the following preliminary checks:
  • Check engine oil level
  • Confirm oil change within 8046.5 km (5000 miles) (5632.6 km [3500 miles] if severe duty)
  • Check Air Filter Minder
  • Confirm acceptable SAE oil viscosity and API rating of oil. Refer to operator's guide.
  • Check fuel quality. Refer to Section 4A or Section 4B.
  • Confirm proper dipstick part number

Are all checks OK?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">GO to AF2 . </td> <td width="50%">REPAIR as necessary. VERIFY a symptom no longer exists. </td></tr></tbody></table> AF2 PERFORM KOEO ON-DEMAND SELF TEST

• Go to Section 4A or Section 4B, Diagnostic Subroutines, Performance Diagnostic Procedures. Perform KOEO On-Demand Self Test.
• Retrieve and clear continuous codes.

Is a fault indicated?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">GO to appropriate pinpoint test. </td> <td width="50%">GO to AF3 . </td></tr></tbody></table> AF3 PERFORM KOEO INJECTOR ELECTRICAL SELF TEST

• Go to Section 4A or Section 4B, Diagnostic Subroutines, Performance Diagnostic Procedures. Perform KOEO Injector Electrical Self Test.

Is a fault indicated?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">GO to appropriate pinpoint test. </td> <td width="50%">GO to AF4 . </td></tr></tbody></table> AF4 CHECK FOR AERATED OIL

• CAUTION: Before running oil aeration tests, make sure the high-pressure oil passages are free of air from recent repairs by running vehicle hard for 32 kilometers (20 miles) after repair.
  CAUTION: Engine must be warmed up to normal operating temperature.
• Confirm proper oil change interval.
• Confirm proper oil level and type.
• Go to Section 4A or Section 4B, Diagnostic Subroutines, Performance Diagnostic Procedures. Perform Injection Control Pressure Test.
• Run engine at 3400 rpm for 30 seconds.

Does ICP read greater than 2.30 volts or 12,410 kPa (1,800 psi)?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">GO to AF5 . </td> <td width="50%">GO to AF7 . </td></tr></tbody></table> AF5 CHECK FOR AIR LEAKS

• Overfill engine by 1.9 liters (2 quarts).
• Raise and support rear of vehicle 254 mm (10 inches).
• Run engine at 3400 rpm for 3 minutes.

Does ICP read greater than 2.30 volts or 12,410 kPa (1,800 psi)?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">Oil is aerating due to lack of defoaming agents. GO to AF6 . </td> <td width="50%">Aeration is caused by O-ring leak or a hole in the oil pickup tube. REPAIR as required. </td></tr></tbody></table> AF6 OIL AERATION TEST

• Change to oil that meets CG4/SH specifications, and CONFIRM engine oil level is correct.
• Go to Section 4A or Section 4B, Diagnostic Subroutines, Performance Diagnostic Procedures. Perform Injection Control Pressure Tests.
• Warm engine to normal operating temperature.
• Run engine at 3400 rpm for 3 minutes.

Does ICP read greater than 2.30 volts or 12,410 kPa (1,800 psi)?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">GO to AF7 . </td> <td width="50%">VERIFY repair. </td></tr></tbody></table> AF7 LOW IDLE STABILITY TEST

• Go to Section 4A or Section 4B, Diagnostic Subroutines, Performance Diagnostic Procedures. Perform Low Idle Stability Test.

Does idle immediately smooth out?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">GO to Pinpoint Test DC . CONFIRM wiring is OK. If OK, INSTALL a new ICP. </td> <td width="50%">GO to AF8 . </td></tr></tbody></table> AF8 CHECK FOR BIASED ICP SENSOR

• Turn off engine for one minute.

Does ICP PID read greater than 0 kPa (0 psi) or ICP V PID read greater than 0.30 volt?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">GO to Pinpoint Test DC . CONFIRM wiring is OK. If OK, INSTALL a new ICP sensor. </td> <td width="50%">GO to AF9 . </td></tr></tbody></table> AF9 CHECK FUEL PUMP PRESSURE

• Go to Section 4A or Section 4B, Diagnostic Subroutines, Performance Diagnostic Procedures. Perform Fuel Pump Pressure Test.

Is fuel pressure within specifications?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">GO to AF10 . </td> <td width="50%">FOLLOW Performance Diagnostic Procedures direction. </td></tr></tbody></table> AF10 CHECK LUBRICATION PRESSURE

• Confirm engine oil level in high-pressure pump reservoir is within 25.4 mm (1 inch) of inspection plug.
• Attach 689 kPa (100 psi) oil pressure gauge on gauge bar (14-00761) to reservoir.
• Warm engine to normal operating temperature.

Is oil pressure 69 kPa (12 psig) or greater at idle (650 rpm)?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">GO to AF11 . </td> <td width="50%">GO to the Workshop Manual to check for cause of low oil pressure. </td></tr></tbody></table> AF11 KOER ON-DEMAND SELF TEST

• CAUTION: Before running KOER On-Demand Self Test, make sure that the high-pressure oil passages are free of air from recent repairs by running vehicle hard for 32 kilometers (20 miles) after repair.
• Warm engine to normal operating temperature.
• Clear codes.
• Go to Section 4A or Section 4B, Diagnostic Subroutines, Performance Diagnostic Procedures. Perform KOER On-Demand Self Test.

Was DTC 1211 received?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">GO to AF12 . </td> <td width="50%">GO to AF16 . </td></tr></tbody></table>

 

Here's part 2:

AF12 CHECK PRESSURE BALANCE

• Plug off high-pressure hose for right cylinder head using adapter from 303-S626.
• Check IPR at 3000 rpm.
• Plug off high-pressure hose for left cylinder head using adapter from 303-S626, and reattach high-pressure hose on right cylinder head.
• Check IPR at 3000 rpm.

Is IPR duty cycle difference greater than 2%?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">GO to AF13 . </td> <td width="50%">INSTALL a new IPR. </td></tr></tbody></table> AF13 CHECK FOR LEAK SOURCE

• Remove valve cover on cylinder(s) with higher IPR reading.
• With engine idling, look for bubbling around injector bores or oil gallery drain plugs.
• Or, with engine off, attach approximately 689 kPa (100 psi) air pressure to high-pressure oil gallery.
• Look/listen for leaks.

Is a leak present?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">INSTALL new seals on injectors or RESEAL oil galleries as required. </td> <td width="50%">GO to AF14 . </td></tr></tbody></table> AF14 CHECK ROUGH IDLE

Was rough idle present when vehicle was new or after installing a new high pressure pump?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">GO to AF15 . </td> <td width="50%">GO to AF16 . </td></tr></tbody></table> AF15 CHECK HIGH-PRESSURE OIL PUMP

• Attach right hose to left head and plug left hose.
• Check IPR at idle.
• Compare this reading to reading for left head in Step 6-12.

Is difference in readings greater than 0.2 volt or 2%?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">Imbalance caused by high-pressure oil pump. CONFIRM high-pressure hoses are clear, and INSTALL a new high-pressure oil pump. </td> <td width="50%">GO to AF16 . </td></tr></tbody></table> AF16 KOER CYLINDER CONTRIBUTION TEST

• Go to Section 4A or Section 4B, Diagnostic Subroutines, Performance Diagnostic Procedures. Perform KOER Cylinder Contribution Test.

Is a cylinder identified?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">GO to AF17 . </td> <td width="50%">GO to AF18 . </td></tr></tbody></table> AF17 CHECK FOR ENGINE WEAR

• Go to Section 4A or Section 4B, Diagnostic Subroutines, Performance Diagnostic Procedures. Perform Crankcase Pressure Test.

Is crankcase pressure higher than 4 inches of H ₂O?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">REPAIR engine as required. </td> <td width="50%">INSTALL a new injector in identified cylinder. </td></tr></tbody></table> AF18 CHECK FOR INCORRECT INJECTOR APPLICATION

• Remove engine valve covers.
• Check part number stamped on top of each injector.

Are the correct injectors installed?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">Cause of rough idle cannot be determined. COMPARE idle performance with other vehicles. </td> <td width="50%">INSTALL new injectors. </td></tr></tbody></table>

 

Drivability OASIS numbers, (Ford Stuff)

<table cellspacing="0" width="95%"> <tbody> <tr> <td> AG: Symptom Chart 7
Introduction
</td> <td align="right" width="25%"> AG: Pinpoint Tests </td></tr></tbody></table> <hr>

<table border="1" cellpadding="3" cellspacing="0"> <tbody> <tr> <th align="center" valign="bottom">Symptom </th> <th align="center" valign="bottom">OASIS Number </th></tr> <tr> <td style="border-bottom: medium none;" align="left" valign="top">Lack/Loss of Power </td> <td style="border-bottom: medium none;" align="left" valign="top">614000 </td></tr> <tr> <td style="border-top: medium none;" align="left" valign="top">

• Acceleration
• Cruise

</td> <td style="border-top: medium none;" align="center" valign="top">614500
614600 </td></tr> <tr> <td style="border-bottom: medium none;" align="left" valign="top">Additional Driveability Concerns </td> <td style="border-bottom: medium none;" align="center" valign="top">
</td></tr> <tr> <td style="border-top: medium none;" align="left" valign="top">

• Poor Fuel Economy

</td> <td style="border-top: medium none;" align="center" valign="top">622000 </td></tr> <tr> <td style="border-bottom: medium none;" align="left" valign="top">Runs Rough </td> <td style="border-bottom: medium none;" align="left" valign="top">608000 </td></tr> <tr> <td style="border-top: medium none;" align="left" valign="top">

• Acceleration
• Cruise

</td> <td style="border-top: medium none;" align="center" valign="top">608500
608600 </td></tr> <tr> <td style="border-bottom: medium none;" align="left" valign="top">Misses </td> <td style="border-bottom: medium none;" align="left" valign="top">609000 </td></tr> <tr> <td style="border-top: medium none;" align="left" valign="top">

• Idle
• Acceleration
• Cruise

</td> <td style="border-top: medium none;" align="center" valign="top">609400
609500
609600 </td></tr> <tr> <td style="border-bottom: medium none;" align="left" valign="top">Buck/Jerk </td> <td style="border-bottom: medium none;" align="left" valign="top">610000 </td></tr> <tr> <td style="border-top: medium none;" align="left" valign="top">

• Acceleration
• Cruise
• Deceleration

</td> <td style="border-top: medium none;" align="center" valign="top">610500
610600
610700 </td></tr> <tr> <td style="border-bottom: medium none;" align="left" valign="top">Hesitation/Stumble </td> <td style="border-bottom: medium none;" align="left" valign="top">611000 </td></tr> <tr> <td style="border-top: medium none;" align="left" valign="top">

• Acceleration

</td> <td style="border-top: medium none;" align="center" valign="top">611500 </td></tr> <tr> <td style="border-bottom: medium none;" align="left" valign="top">Surge </td> <td style="border-bottom: medium none;" align="left" valign="top">612000 </td></tr> <tr> <td style="border-top: medium none;" align="left" valign="top">

• Acceleration
• Cruise

</td> <td style="border-top: medium none;" align="center" valign="top">612500
612600 </td></tr></tbody></table>

 

Pinpoint tests for Hesitation/Stumble part 1:

<table cellspacing="0" width="95%"> <tbody> <tr> <td> AG: Symptom Chart 7
</td> <td align="right" width="25%"> AG: Introduction </td></tr></tbody></table> <hr> AG1 BOOST PRESSURE TEST

• Go to Section 4A or Section 4B, Diagnostic Subroutines, Performance Diagnostic Procedures. Perform Boost Pressure Test.
• Display PID MGP on NGS.
• Road test to determine turbo boost.
• Accelerate hard between 1500 and 3000 rpm.

Does boost exceed minimum specification?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">GO to Pinpoint Test KH . </td> <td width="50%">GO to AG2 . </td></tr></tbody></table> AG2 PRELIMINARY CHECKS

• Perform the following preliminary checks:
  • Confirm brakes are not dragging
  • Confirm transmission and axle fluid levels
  • Confirm transmission and axle tube are not "cooked"
  • Check for oil in coolant
  • Check engine oil level
  • Confirm oil change within 8046.5 km (5000 miles), (5632.6 km [3500 miles] if severe duty)
  • Check Air Filter Minder
  • Check MAP sensor hose for holes, blockage, or disconnection. Confirm correct MAP sensor.
  • Check intake manifold system for leaks
  • Confirm acceptable SAE oil viscosity and API rating of oil. Refer to operator's guide.
  • Check fuel quality. Refer to Section 4A or Section 4B, Diagnostic Subroutines.
  • Confirm proper dipstick part number
  • Check for sufficient clean fuel
  • Check for an intake restriction
  • Check MAP sensor hose
  • Compare loaded weight of vehicle with performance expectations

Are all checks OK?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">GO to AG3 . </td> <td width="50%">REPAIR as necessary. VERIFY a symptom no longer exists. </td></tr></tbody></table> AG3 PERFORM KOEO ON-DEMAND SELF TEST

• Go to Section 4A or Section 4B, Diagnostic Subroutines, Performance Diagnostic Procedures. Perform KOEO On-Demand Self Test.

Is a fault indicated?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">GO to appropriate pinpoint test. </td> <td width="50%">GO to AG4 . </td></tr></tbody></table> AG4 PERFORM KOEO INJECTOR ELECTRICAL SELF TEST

• Go to Section 4A or Section 4B, Diagnostic Subroutines, Performance Diagnostic Procedures. Perform KOEO Injector Electrical Self Test.

Is a fault indicated?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">GO to appropriate pinpoint test. </td> <td width="50%">GO to AG5 . </td></tr></tbody></table> AG5 CHECK FOR COLD WEATHER GELLED FUEL

Does vehicle have lack/loss of power in cold ambient temperatures?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">CHECK fuel quality. If equipped with fuel heater, GO to AG6 . If not equipped with fuel heater a service kit is available. </td> <td width="50%">GO to AG3 . </td></tr></tbody></table> AG6 CHECK FUEL HEATER

• Fuel heater circulates return fuel when coolant temperature is between 15°C and 26°C (60°F and 80°F).

Is heater functioning correctly?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">GO to AG3 and proceed with diagnostic tests. </td> <td width="50%">REPAIR heater as necessary. </td></tr></tbody></table> AG7 RETRIEVE/CLEAR CONTINUOUS DTCS

• Go to Section 4A or Section 4B, Diagnostic Subroutines, Performance Diagnostic Procedures. Retrieve/Clear Continuous DTCs.
• Record any codes retrieved.
• Clear Continuous DTCs.

Are CMP fault codes retrieved?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">GO to AG6 . </td> <td width="50%">GO to AG8 . </td></tr></tbody></table> AG8 CHECK COLD CMP CLEARANCE (CMP CODE PRESENT)

Did engine fail to reach rated speed only when engine oil was cold?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">GO to AG7 . </td> <td width="50%">INSTALL a new CMP according to Workshop Manual direction and, if necessary, add shim F6TZ-12J027-M to create approximately 0.5 mm (0.020 inch) clearance to timing disk. VERIFY repair. </td></tr></tbody></table> AG9 CHECK CMP CLEARANCE TO TIMING DISK

• Remove and inspect CMP for evidence of contact with the timing disk (scratches or unplugged holes on working surface).

Is there evidence of contact?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">INSTALL a new CMP according to Workshop Manual direction and, if necessary, add shim F6TZ-12J027-M to create approximately 0.5 mm (0.020 inch) clearance to timing disk. VERIFY repair. </td> <td width="50%">INSTALL a new CMP sensor. </td></tr></tbody></table>

 

Part 2, compare the two for what you have in common for both symptom charts:

AG10 CHECK CONTINUOUS FAULT CODES

Are continuous DTCs, other than CMP, retrieved?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">GO to appropriate pinpoint test. </td> <td width="50%">GO to AG11 . </td></tr></tbody></table> AG11 CHECK FOR BIASED ICP SENSOR

• Warm up engine.
• Turn off engine for one minute.
• KOEO.
• GO to Section 2 , Diagnostic Methods, Parameter Identification (PID), selecting Parameter Identification (PID).
• Select PIDs ICP and ICP V.

Does ICP PID read greater than 0 kPa (0 psi) or ICP V PID read greater than 0.30 volt?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">GO to Pinpoint Test DC . CONFIRM wiring is OK. If OK, INSTALL a new ICP sensor. </td> <td width="50%">GO to AG12 . </td></tr></tbody></table> AG12 CHECK FUEL PUMP PRESSURE

• Go to Section 4A or Section 4B, Diagnostic Subroutines, Performance Diagnostic Procedures. Perform Fuel Pump Pressure Test.

Is fuel pressure at least 379 kPa (55 psi) at maximum rpm with no load?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">GO to AG15 . </td> <td width="50%">GO to AG13 . </td></tr></tbody></table> AG13 CHECK FUEL REGULATOR

• Check regulator valve for evidence of sticking or debris.

Do regulator or O-ring require service?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">INSTALL a new regulator valve. </td> <td width="50%">GO to AG14 . </td></tr></tbody></table> AG14 CHECK PUMP INLET RESTRICTION

• Go to Section 4A or Section 4B, Diagnostic Subroutines, Performance Diagnostic Procedures. Perform Pump Inlet Restriction Test.

Is vacuum greater than 20 kPa (6 in-Hg)?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">CHECK inlet lines between tank(s) and fuel line fitting for blockage. </td> <td width="50%">GO to AG21 . </td></tr></tbody></table> AG15 CHECK FOR AERATED OIL

• [*]
• [*]
• [*]
• [*]

Does ICP read greater than 12,410 kPa (1,800 psi) or 1.75 volts in 180 seconds or less?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">GO to AG16 . </td> <td width="50%">GO to AG18 . </td></tr></tbody></table> AG16 CHECK SOURCE OF AERATED OIL

• Overfill engine by 1.9 liters (2 quarts).
• Raise and support rear of vehicle 254 mm (10 inches).
• Run engine at WOT for 180 seconds.

Does ICP read greater than 12,410 kPa (1,800 psi) or 1.75 volts?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">Oil is aerating due to lack of defoaming agents. GO to AG17 . </td> <td width="50%">Aeration is caused by O-ring leak or a hole in the oil pickup tube. REPAIR as required. </td></tr></tbody></table> AG17 INJECTION CONTROL PRESSURE TEST

• Change to oil that meets CG4/SH specifications and confirm correct oil level.
• Go to Section 4A or Section 4B, Diagnostic Subroutines, Performance Diagnostic Procedures. Perform Injection Control Pressure Test.
• Warm engine to normal operating temperature.
• Run engine at WOT for 3 minutes.

Does ICP read greater than 12,410 kPa (1,800 psi) or 1.75 volts?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">GO to AG18 . </td> <td width="50%">INSTALL a new ICP. VERIFY repair. </td></tr></tbody></table> AG18 CHECK FOR LOW IDM POWER

• Run engine at WOT, unloaded.
  • Engine rpm should be 3300 for all vehicles except F650/750, which should be 2700 rpm.

Does engine reach specified rpm?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">GO to AG19 . </td> <td width="50%">GO to Pinpoint Test NA , Step N29. CONFIRM injector wiring circuits are OK. If OK, INSTALL a new IDM according to Workshop Manual direction. </td></tr></tbody></table> AG19 CHECK LUBRICATION PRESSURE

• Confirm engine oil level in high-pressure pump reservoir is within 25.4 mm (1 inch) of inspection plug.
• Attach 689 kPa (100 psi) oil pressure gauge on gauge bar (14-00761) to reservoir.
• Warm engine to normal operating temperature.

Is oil pressure 69 kPa (12 psig) or higher at idle (650 rpm)?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">GO to AG20 . </td> <td width="50%">GO to the Workshop Manual to check for cause of low oil pressure. </td></tr></tbody></table> AG20 KOER ON-DEMAND SELF TEST

• [*]

Was DTC P1211 and/or DTC 0476 received?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">For DTC 1211, GO to AG21 . For DTC 0976, GO to AG24 . </td> <td width="50%">GO to AG28 . </td></tr></tbody></table>

 

Part 3 Hesitation/stumble:

AG21 CHECK PRESSURE BALANCE

• Plug off high-pressure hose for right cylinder head using adapter from 303-S626.
• Record IPR at specified rpm.
  • All vehicles except F650/750 — 3000 rpm
  • F650/750 vehicles — 2500 rpm
• Plug off high-pressure hose for left cylinder head using adapter from 303-S626, and reattach high-pressure hose on right cylinder head.
• Record IPR at specified rpm.

Is IPR duty cycle difference greater than 2%?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">GO to AG22 . </td> <td width="50%">INSTALL a new IPR. </td></tr></tbody></table> AG22 CHECK FOR LEAK SOURCE

• Remove valve cover on cylinder head with higher IPR reading.
• With engine idling, look for bubbling around injector bores or oil gallery drain plugs.
• Or, with engine off, attach approximately 689 kPa (100 psi) air pressure to high-pressure oil gallery. Remove injector spill spouts for visibility.
• Look/listen for leaks.

Is a leak present?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">INSTALL new seals on injectors or RESEAL oil galleries as required. </td> <td width="50%">GO to AG23 . </td></tr></tbody></table> AG23 KOER CYLINDER CONTRIBUTION TEST

• Go to Section 4A or Section 4B, Diagnostic Subroutines, Performance Diagnostic Procedures. Perform KOER Cylinder Contribution Test.

Is a cylinder identified?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">GO to AG29 . </td> <td width="50%">GO to AG30 . </td></tr></tbody></table> AG24 CHECK FOR BIASED EBP SENSOR

• [*]
• [*]

Does EBP deviate from atmospheric pressure in your locale by more than 10 kPa (1.5 psi)?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">GO to Pinpoint Test DE . CONFIRM wiring and PCM are OK. If OK, INSTALL a new EBP. </td> <td width="50%">GO to AG25 . </td></tr></tbody></table> AG25 CHECK FOR EXHAUST RESTRICTION (KOER, DTC 0476)

• Unplug EOT to cause EBP valve to stay open.
• Run engine at WOT.
• Read EBP on NGS or DVOM.

Is EBP greater than 172 kPa [34 psia (2 volts)]?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">GO to AG26 . </td> <td width="50%">GO to AG27 . </td></tr></tbody></table> AG26 EXHAUST BACK PRESSURE OPERATION TEST

• Inspect exhaust system for damage.
• Remove engine cover (lid).
• Observe EBP valve operation while re-running KOER On-Demand Self Test.

Does EBP valve cycle and then open completely (tang against stop)?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">IGNORE KOER 0476 code. </td> <td width="50%">GO to AG27 . </td></tr></tbody></table> AG27 CHECK ELECTRICAL SYSTEM

• Go to Section 5 , Pinpoint Test KB, and confirm that EPR and wiring are working.

Is electrical system OK?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">GO to AG28 . </td> <td width="50%">REPAIR as required. </td></tr></tbody></table> AG28 CHECK FOR ENGINE WEAR

• Go to Section 4A or Section 4B, Diagnostic Subroutines, Performance Diagnostic Procedures. Perform Crankcase Pressure Test.

Is crankcase pressure higher than 4 inches of H ₂O?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">REPAIR engine for rings or valves as required. </td> <td width="50%">If engine runs smooth, GO to AG30 . If engine runs rough, GO to AG23 . </td></tr></tbody></table> AG29 CHECK FOR PISTON OR VALVE LEAKS

• Perform a compression pressure test.

Is compression pressure lower than 2413 kPa (350 psig) and different from adjacent cylinders by 345 kPa (50 psig)?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">REPAIR as necessary according to Workshop Manual direction. </td> <td width="50%">INSTALL a new fuel injector. </td></tr></tbody></table> AG30 CHECK FOR AN EXHAUST RESTRICTION (NO DTC)

• [*]

Is EBP greater than 234 kPa (34 psi) or 2 volts?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">LOCATE and REPAIR restriction in exhaust system. VERIFY repair. </td> <td width="50%">GO to AG31 . </td></tr></tbody></table> AG31 CHECK FUEL INJECTOR OIL DISCHARGE

• Remove valve covers.
• Observe oil flow out of fuel injector spill spouts with engine at idle.

Is there low oil flow?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">INSTALL new fuel injectors with low oil flow. VERIFY repair. </td> <td width="50%">GO to AG32 . </td></tr></tbody></table>

 

Whew, part 4:

AG32 ATMOSPHERIC PRESSURE RATIONALITY CHECK

• Go to Section 2 , Diagnostic Methods, Parameter Identification (PID), Selecting Parameter Identification (PID).
• Select PIDs EBP, MAP and BARO (EBP is not used on F-Series 650/750).
• Key on, engine off.

Does any PID deviate from atmospheric pressure in your locale by more than 10 kPa (1.5 psi)?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">GO to the appropriate pinpoint test for the sensor with the largest difference. </td> <td width="50%">GO to AG33 . </td></tr></tbody></table> AG33 CHECK FOR BIASED EOT SENSOR

• Allow vehicle to sit overnight.
• Do not start engine.
• Read EOT and IAT using NGS Tester with KOEO.

Do readings agree within 6°C (11°F)?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">GO to AG34 . </td> <td width="50%">GO to Pinpoint Test DB . CONFIRM wiring is OK. If OK, INSTALL a new EOT. </td></tr></tbody></table> AG34 CHECK EOT SENSOR

• Warm engine to between 15°C and 70°C (59°F and 158°F).
• Remove fill/check plug from high-pressure oil pump reservoir.
• Measure reservoir oil temperature with an A/C thermometer.
• Measure EOT using NGS Tester or DVOM.

Do readings between EOT and thermometer agree within ± 3°C (± 5.4°F)?
<table border="1" cellpadding="3" cellspacing="0" width="92%"> <tbody> <tr> <th width="50%">Yes </th> <th width="50%">No </th></tr> <tr> <td width="50%">CONFIRM performance concern. REFER to Section 4A or Section 4B, Diagnostic Subroutines, Performance Diagnostic Procedures. </td> <td width="50%">GO to Pinpoint Test DB . CONFIRM wiring is OK. If OK, INSTALL a new EOT</td></tr></tbody></table>

 

HOLY CRAP Mr. Friggen Wizard! Sheesh...enough info to kill the guy and bury him! hehe....Rep points given for that ummm...Novel?

 

I know BillyBob, and thanks. I just thought I would "throw the book at him" and let him pick out the items to check. I would compare the two tables of tests for each symptom and zero in on what they have in common.

I am getting ready for Smokin' and have much to do before busting out of here, not all truck related. I will be on and off.

 

Wow great info Mike. I have something look for now when I runb into trouble with my truck.

 

Wow gives me something to look into thank you very much for all this info but i do not agree with all of it
where it said to block off the high press line and run the eng can you get 3000 rpms with 1/2 the cyls not firing?
Thanks
A&L