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I have a 2004 GMC c7500 with the 7.8 Isuzu motor. Was
I have a 2004 GMC c7500 with the 7.8 Isuzu motor. Was running, shut it off, came back 1hr later will not start. Does turn over. Have changed fuel filters. Primed and bled. I have fuel to the injection… read more
Steven
Steven
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Associates
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I have an 2014 Isuzu NPR with code P0093. Under rapid
good morning i have an 2014 Isuzu NPR with code P0093. Under rapid acceleration throws this code and goes into limp mode. No visible leaks. runs fine if you just accel slowly. was thinking of changing… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
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Jeremy, I have a 2005 Isuzu NPR 5.2L 4HK1. I do not have a
Hi Jeremy, I have a 2005 Isuzu NPR 5.2L 4HK1. I do not have a shop in my town with IDSS. Nearest shop is 100 miles away. The truck has been having the limp mode kick in and take the truck to idle and … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
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I have a 2006 gmc 6500 with a 7.8 isuzu engine in it. I am
I have a 2006 gmc 6500 with a 7.8 isuzu engine in it. I am looking for information on the operation of the fuel injection. … read more
Daniel Wilson
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Do not have grounds to either solenoids on injection pump
do not have grounds to either solenoids on injection pump they have power but no ground on brown wires. Also getting no power to pump position sensor same thing during cranking. … read more
Daniel Wilson
Daniel Wilson
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ISUZU 2003 FRR Intermittent, Miisssing, Skipping ,Spitting,
ISUZU 2003 FRR Intermittent, Miisssing , Skipping ,Spitting, Sputtering...Stopped Running JALF5C13X37701175 6HK1-TC Engine L6, 7.8L; Turbo Diesel-I/C / Duramax (LG4)COMPLAINT: Intermittent, Missing , … read more
Daniel Wilson
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2009 FUSO FE145 CODE P0251 VEHICLE LOSES POWER AND STALLS -I
2009 FUSO FE145 CODE P0251 VEHICLE LOSES POWER AND STALLS -I THINK ITS THE FUEL QUANTITY SOLENOID WHAT DO YOU THINK AND IS THAT PART ON THE INJECTOR PUMP … read more
Pete
Pete
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I have a 2004 cat c7 motor that starts and idles fine but
I have a 2004 cat c7 motor that starts and idles fine but will not rev up has no power. There are no codes. we have changed fuel filters and have tried a new TPS which changed nothing. Not sure what t… read more
Cat Man
Cat Man
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Isuzu Fvr 34: we are currently having starting problems
Hi we are currently having starting problems with an Isuzu truck fvr34 2005' model 6hk1-Tc, non common rail system. Cranks over for too long before starting and seems to lack power. Glow plugs test ok… read more
Pete
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Need some help troubleshooting Isuzu 4HK1-TC fuel problem.
need some help troubleshooting Isuzu 4HK1-TC fuel problem. looking for advice from someone with extensive Isuzu experience.… read more
Daniel Wilson
Daniel Wilson
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ford f550: I have a 6.4 diesel power stroke that is showing
I have a 6.4 diesel power stroke that is showing reduced engine power and the wrench on the display. what are the probable causes the high pressure pump and injectors have been replaced recently . The… read more
Jeremy
Jeremy
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Associate Degree
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Could you tell me why my fvz 1400 Isuzu with the 275 sitec
Could you tell me why my fvz 1400 Isuzu with the 275 sitec motor is heating my fuel To over 60deg c before it shuts my pump down and gives me a 226 code additional information. can still drive truck o… read more
Expert
Expert
Chevrolet W5500: I have a 2007 Chev W5500 with a 5.2 Loosing
I have a 2007 Chev W5500 with a 5.2 Loosing throttle responds followed by a code P0642, sensor reference voltage A circuit low. I replaced the throttle sensor. Still have the problem at time. Cannot f… read more
tkman55
tkman55
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2007 Isuzu NPR 5.2 no start . Engine died suddenly . cranks
2007 Isuzu NPR 5.2 no start . Engine died suddenly . cranks over but doesn't start, it wants to fire but doesnt. Had one code , P0091. Changed the Suction Control Valve on the pump and still doesn't s… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
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I have a 2001 W5500 I have fuel going into injection pump but
I have a 2001 W5500 I have fuel going into injection pump but none coming out of it to injectors… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
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We have a 2008 GMC(Isuzu) W4500 diesel Flatbed. Complaint
We have a 2008 GMC(Isuzu) W4500 diesel Flatbed. Complaint truck engine dying off. Scanned system Code #P0087 & #P0089. Replaced the FUel Limiter and the Fuel Pressure Sensor & the Fuel Filter. Truck s… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,803 satisfied customers
1999 w4500 gmc- isuzu truck cranks up runs 30 seconds then
1999 w4500 gmc- isuzu truck cranks up runs 30 seconds then goes to rough runing and looses power at the timing solenoid , changed fuel injection pump, changed engine computer, flywheel sensor,still no… read more
Expert
Expert
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Daniel Wilson

Daniel Wilson

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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