Occasional reoccurring problem. Wont go above approximately 1400 rpms.
#1
03-19-2015, 08:32 PM
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Occasional reoccurring problem. Wont go above approximately 1400 rpms.
I have never used this website before so i apologize in advance if i am going about this the wrong way. I have a 2001 f350 with the 7.3 powerstroke and every once in a while i will be driving and the motor will start to sound significantly different like its going to die. When it does this it wont go above 1400 rpms and it sounds like the turbo isn't kicking in. I have noticed that the only times that this has occurred is after a few hours of off roading or if i have been towing for a long amount of time. But after i turn the truck off and wait a couple minutes it starts up fine and i wont have a problem with it for a week or two. A couple of my friends said that it could be the hpop going out, but i wanted to get a second opinion before i go and drop that kind of money on a new pump.
#2
03-19-2015, 08:48 PM
Your best bet would be to capture it with a Scan Tool or similar device.
echo=on
Tools: OBD-II On-Board Diagnostics, Phase 2 Vehicle Media Communications Unit (Scanner)
1. Select the parameters indicated from the Scan Tool parameter list and monitor while cranking engine.
Data List Monitoring Parameter:
V-PWR 10.5 VDC Minimum.
RPM 100 RPM Minimum (0 - CMP Suspect)
ICP 500 PSI or 3.4 MPAM Minimum
ICPv (KOEO) Spec 0.20v - 0.30v
FUEL PW: 1 MS - 6 MS ( <1 / >6 IDM Suspect)
V-PWR - If indicating a low voltage condition, check battery voltage, charging system or power and ground circuits to the PCM.
DC% - Cranking NTE 20% / 65% is Closed. (IPR Suspect)
2. RPM - Low RPM could be an indication of starting/ charging system problems
3. No RPM indicated with the engine cranking - could be CMP circuit fault, check for DTC’s.
4. 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-Rings, or faulty IPR could cause pressure loss.
Note: If no RPM signal is received, IPR duty cycle will default to 14%
5. 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.
echo=off
echo=on
Tools: OBD-II On-Board Diagnostics, Phase 2 Vehicle Media Communications Unit (Scanner)
1. Select the parameters indicated from the Scan Tool parameter list and monitor while cranking engine.
Data List Monitoring Parameter:
V-PWR 10.5 VDC Minimum.
RPM 100 RPM Minimum (0 - CMP Suspect)
ICP 500 PSI or 3.4 MPAM Minimum
ICPv (KOEO) Spec 0.20v - 0.30v
FUEL PW: 1 MS - 6 MS ( <1 / >6 IDM Suspect)
V-PWR - If indicating a low voltage condition, check battery voltage, charging system or power and ground circuits to the PCM.
DC% - Cranking NTE 20% / 65% is Closed. (IPR Suspect)
2. RPM - Low RPM could be an indication of starting/ charging system problems
3. No RPM indicated with the engine cranking - could be CMP circuit fault, check for DTC’s.
4. 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-Rings, or faulty IPR could cause pressure loss.
Note: If no RPM signal is received, IPR duty cycle will default to 14%
5. 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.
echo=off
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