Medium and Heavy Trucks

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99 Isuzu NPR with 4he1 diesel. Starts, runs for 2 seconds
99 Isuzu NPR with 4he1 diesel. Starts, runs for 2 seconds and shuts down. Fuel supply is ok. filters new. Lift pump is good. … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,803 satisfied customers
When I need to address inclines my truck loses power. I have
When I need to address inclines my truck loses power … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,243 satisfied customers
2010 Isuzu NPR 5.2 Diesel, oil on # 4 glow plug, compression
2010 Isuzu NPR 5.2 Diesel, oil on # 4 glow plug, compression 500 across the board. Can a bad variator cause this. Oil and smoke is being sent up the tube to the turbo intake hose and intake.… read more
Curtis B.
Curtis B.
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Associate Degree
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We have a 2012 INTERNATIONAL DURASTAR 4300 MAXXFORCE 7 V8
We have a 2012 INTERNATIONAL DURASTAR 4300 MAXXFORCE 7 V8 6.4. Just had the injectors replaced and did an oil change because of fuel leaking into the oil. Truck started and ran great for the first 15 … read more
Alex Olsen
Alex Olsen
auto/diesel/industrial
490 satisfied customers
Diesel engine wont start, yes done that. it wont start with
yes done that. it wont start with it being jumped either. its like it isn't cranking over … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
11,869 satisfied customers
Travel to Caribbean to Fix NPR Fuel Issue - Starts Won't Rev
Travel to Caribbean to Fix NPR Fuel Issue - Starts Won't Rev I'm looking for a certified Master Isuzu NPR technician to travel to St. Croix US Virgin Islands to solve a fuel issue. Vehicle is a 2010 I… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
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Isuzu NPR: , I'm Bill, I have a 2006 Isuzu NPR Diesel. Was
Hi, I'm Bill, I have a 2006 Isuzu NPR Diesel. Was driving on highway on cruise control about 68mph. it's sweetspot on road. going up a hill the engine dropped rpm. didn't die but would not rev over 21… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
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2004 Isuzu with excessive crank pressure, blows oil out of
2004 Isuzu with excessive crank pressure, blows oil out of dip stick and air to air hose blows off?? what might be the cause?… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
697 satisfied customers
222mk, 2001 Isuzu NPR 4.8 Heads redone. Press. tested, valve job
2001 Isuzu NPR 4.8 Heads redone. Press. tested, valve job with new springs, new gaskets. I new injector. When start cold some white smoke and clears up in a couple minutes. It also Runs rough for this… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
11,869 satisfied customers
the truck (2000 isuzu NPR Diesel) started just fine, 300 yards,
the truck (2000 isuzu NPR Diesel) started just fine, 300 yards, the fuel gage dropped to empty and the tuuck started studdering like it was out of fuel, then died. all other gages work, the engin trys… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,243 satisfied customers
isuzu npr: He hows going, we have a 2004 isuzu npr and it just
He hows going, we have a 2004 isuzu npr and it just wont start, we checked the grounds, replaced the wires and starter even the starter relay and no go, could you help were out of ideas… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
254 satisfied customers
I have a 03 Isuzu NPR Diesel. Im having power steering problems
I have a 03 Isuzu NPR Diesel. I'm having power steering problems turning left or right drives fine going straight… read more
Pete
Pete
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General auto certifications
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Isuzu medium-duty 4500 series NPR: I have a 1989 Isuzu medium-duty
I have a 1989 Isuzu medium-duty 4500 series NPR box truck with a four cylinder diesel turbo motor I was driving it two days ago and all the power went out of the fuse box the motor did not shut off an… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
697 satisfied customers
isuzu nrr: Isuzu nrr diesel truck loses power climbing hills
Isuzu nrr diesel truck loses power climbing hills and service engine soon light comes on. truck drives like a turtle after....shut engine off.. wait a minute .restart... engine takes off ike normal fo… read more
spankyjr1
spankyjr1
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Vocational, Technical or Trade Scho
697 satisfied customers
Hi, my name isXXXXX own Freightliner Century 2004 Detroit
Hi, my name isXXXXX own Freightliner Century 2004 Detroit 60 engine last 6 vin M12223. Have a loss of power issue with my truck . And this killing me. When I driving without trailer everything is fine… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,803 satisfied customers
Isuzu NPR: Hello, I am working on a 2006 Isuzu NPR with
Hello, I am working on a 2006 Isuzu NPR with a 5.2L diesel VIN JALC4B16667015584. I changed the fuel filter on this vehicle for maintenance and took it on a test drive. Now I have a check engine light… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
11,869 satisfied customers
We have a 2003 Isuzu NPR with the 4 cylinder turbo diesel engine.
We have a 2003 Isuzu NPR with the 4 cylinder turbo diesel engine. The truck has a little less than 100,000 miles on it. The truck is not driven often, and frequently has relatively long periods of bei… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
11,869 satisfied customers
Isuzu NPR: Isuzu NPR Heavy Duty 2001 diesel truck 190,000 miles My
Isuzu NPR Heavy Duty 2001 diesel truck 190,000 miles My engine started putting black oil in the raidator water. Now it has started a light gray smoke coming out the breather hose at the bottom of the … read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,351 satisfied customers
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Meet the Experts:

Daniel Wilson

Daniel Wilson

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Owner at DJ Wilson

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I am ASE Master Truck Certified.

Wayne

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worked on, Gmc, Macks, Freight liner,Mercedes Benz,,Ford, sterling

Jeremy

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ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, EPA 608/609 HVAC Certified, Steering/Suspension and ABS/Brakes Technician

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cumminsdr

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All types of Cummins applications

Curtis B.

Curtis B.

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dieseldan55

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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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