Have a 2000 Excusion 7.3 not starting!! Need help. It has 68k on it, was running excellent then one day, I went to start it, let it warm up a bit. I came back outside and it was off. Tried to start again, had to push the gas a little to get it started again, once started had to keep reving it to keep it running. Did it for about 10 minuetes and ran great all night no issues. Next day same thing and now it's not really running at all. Have to put my foot on the gas pedal and when I let off it dies. Changed fuel filter did nothing. Is this going to be injectors or sound like something else, please help!!

 

#1: Visual Engine/Chassis Inspection
Fuel
Oil
Coolant
Electrical
Hoses Leaks Check

#2 Check for contaminates Correct Grade and Viscosity
Miles/Hours on oil
Correct level

#3 Intake/Exhaust Restriction
Inspect air filter and ducts - exhaust system / Inspect exhaust back pressure device

#4 Sufficient Clean Fuel
Check if the WATER IN FUEL lamp has been illuminated.
After verifying that there is fuel in the tank, drain a sample from fuel filter housing at key on.
NOTE: Fuel pump will run for 20 sec. at key on

#5 Electric Fuel Pump Pressure
Verify that the fuel pump has voltage and gnd. present at key on.
Measure fuel pressure at the top of the right cylinder head with a (0-160 PSI) gauge at key on.
Spec: 45 PSIG Min.
If pressure fails low, go to step 8c on the Performance side of this sheet to identify cause

#6 Perform KOEO Demand Test
Use the Scan Tool / DTCs set during this test are current faults.
Note: IDM DTCs displayed here could be current or historical faults

#7 Retrieve Continuous Trouble Codes
DTCs retrieved during this test are historical faults.
Note: IDM DTCs are cleared when codes are cleared.

#8 KOEO Injector Electrical Self-Test
Use the SCAN Tester.
All injectors will momentarily buzz, then individual injectors will buzz in sequence 1 through 8.
IDM DTCs may be transmitted after test is completed.
Note: IDM DTCs may be historical if not cleared above

#9 Scan Tool - Data List Monitoring
A. Select the parameters indicated from the Scan Tool parameter list and monitor while cranking engine.
Parameter:
V-PWR 8 VDC Minimum.
RPM 100 RPM Minimum
ICP 500 PSI or 3.4 MPAM Minimum
FUEL PW: 1 MS - 6 MS
V-PWR - If indicating a low voltage condition, check battery voltage, charging system or power and ground circuits to the PCM.

B. RPM - Low RPM could be an indication of starting/ charging system problems
No RPM indicated with the engine cranking - could be CMP circuit fault, check for DTC’s.

C. ICP - A minimum of 500 PSI (3.4 mPa) is required before the injectors are enabled. No or low oil in the reservoir, system leakage, injector O-RiScan or faulty IPR could cause pressure loss.
Go to section 4 step 9c in the PC/ED Manual for a detailed description on how to perform this test.
Note: If no RPM signal is received, IPR duty cycle will default to 14%

D. FUEL PW - Even though a 1 to 6 mS FUEL PW is shown, it’s possible the IDM did not receive the signal due to a CI or FDCS circuit fault or internal IDM failure.
Glow Plug System Operation
Glow Plug ON time is dependent on oil temperature and altitude. The Glow Plug relay comes on between 1 and 120 sec. and does not come on at all if oil temp is above 131oF.
Verify that B+ is being supplied on the large BK/W wire going to the Glow Plug relay.

Install a voltmeter to the glow plug feed terminal (two brown wires or center terminal on the shunt).
Using the SCAN GPCTM and EOT PID’s, verify glow plug "on" time.
Turn key to run position, measure voltage (On “Time) (Dependent on oil temperature and altitude) Relay on time
Spec. Measurement 1 to 120 seconds B +

Note: Wait to Start Lamp "on" time (1-10 sec.) is independent from Glow Plug "on" time

Glow Plug Resistance

Remove both 9 pin connectors from valve covers
Measure each Glow Plug resistance to Batt. Ground.
Spec: .1 to 2 ohms
Measure engine harness resistance to relay
Glow Plug Connector to relay
Spec. 0 to 1 ohms
Number
#1 #5
#3 #6
#5 #7
#7 #8
Add 5 seconds to glow plug on time when above 7000 feet in altitude, but not to exceed 120 seconds.

 

Well thanks, you just saved me lots of
Money!!! Thanks again.

 

10 mins from the answer to the fix? WOW

 

Well those steps will help right

 

A 2000 Excurdion with 68K.....

Where u been hiding that thing? Would you sell it?

 

Crickets............