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Related Medium and Heavy Trucks Questions
My 2001 npr is over heating, brake boost light is turning on
My 2001 npr is over heating, brake boost light is turning on and off, and The gears are grinding … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
5,454 satisfied customers
2005 NPR diesel 16ft box truck. At 55 to 60mph. Truck feel
2005 NPR diesel 16ft box truck. At 55 to 60mph. Truck feel likr it shudder in back end like going to roadway strips. Does it then yake foot off gas n stop. Ttc maybe bad ?? … read more
TomcM28
TomcM28
Owner
Associates
4 satisfied customers
Yeah I got a 1998 Isuzu NPR 3.9 No reverse and it seems to
Yeah I got a 1998 Isuzu NPR 3.9 No reverse and it seems to only have first and sometimes second … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
5,454 satisfied customers
I got a friend that has multiple Isuzu NPRs that he uses in
I got a friend that has multiple Isuzu NPRs that he uses in his lawn and irrigation business. He asked me if I knew an "easy" way to add strobe lights to the rear of the vehicle. Easy as in idiot proo… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
480 satisfied customers
2000 Isuzu NPR-HD, Has battery light, brake light, and brake
2000 Isuzu NPR-HD, Has battery light , brake light, and brake booster light on. Truck runs normal but now the ac/heater fun does not turn on. … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
480 satisfied customers
Isuzu npr 4he1 diesel will not crank due to engine stop not
Isuzu npr 4he1 diesel will not crank due to engine stop not working. Replaced it and still not working.… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
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480 satisfied customers
I have a int lowboy tractor that won't go in gear. It's a
I have a int lowboy tractor that won't go in gear JA: What's the make/model/year of your truck? Engine type? Customer: It's a farm tractor JA: Are you fixing your truck yourself? What have you tried s… read more
Curtis B.
Curtis B.
Technician
Associate Degree
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Would low boost code prevent it from shifting up from third?
would low boost code prevent it from shifting up from third? 2008 Isuzu NPR 5.2 L … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
480 satisfied customers
I have a 98 Isuzu NPR, replaced trans 30k miles ago,
I have a 98 Isuzu NPR, replaced trans 30k miles ago, recently while driving the truck at normal operation, all the sudden it looses power, rpm's won't climb above 2-3k and won't go above 30 mph. It do… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
211 satisfied customers
I have a an Isuzu 4bd1t. So the injection pumpSo the
I have a an Isuzu 4bd1t. So the injection pumpSo the injection pump rebuilt.. Reinstalled it now can't get it to start have time in Marks lined up to 13° have time in Marks lined up to 13° but it is a… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
5,454 satisfied customers
I have an Isuzu 2001 NPR Gas Engine straight truck. It will
I have an Isuzu 2001 NPR Gas Engine straight truck. It will not start. I just replaced the battery yesterday thinking that was the problem. The lights, wipers, radio, etc... work. When I put the key i… read more
PATRICK WENSLEY
PATRICK WENSLEY
Associates Degree Of Applied Science
2008 isuzu npr gas it seems i have to turn the key to the
2008 isuzu npr gas it seems i have to turn the key to the very end to engage starter, sometimes it starts other times nothing … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
480 satisfied customers
I have a 2004 isuzu FRR flat bed tow truck. I have some
hello i have a 2004 isuzu FRR flat bed tow truck. I have some issues with the PTO. When i turn it on from the cabin, it'll have a grinding noise. I can engage it with the engine turned off. Turn the s… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
480 satisfied customers
We have a 72 Ford boom truck with a 390 engine. I recently
we have a 72 Ford boom truck with a 390 engine. I recently installed a new starter and the starter is not engaging the flywheel consistently. We have been turning flywheel manually until an engagement… read more
Curtis B.
Curtis B.
Technician
Associate Degree
1,806 satisfied customers
05 Kenworth t300 cat C7 won't start, just goes click,I replaced
05 Kenworth t300 cat C7 won't start, just goes click,I replaced battires,starter cleaned all wiring going to starter,batteries,grounds and still won't turn over,took starter back out set it on spring … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
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i have a 84 mack dump truck with a cummins inline 6 the starter
i have a 84 mack dump truck with a cummins inline 6 the starter was stuck on and the engine would not stop rolling over until i disconnected the 4 parallel batteries when i reconnected the batteries, … read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
420 satisfied customers
hi, i have a driver driving my 07 kw t800 its a dump truck
hi, i have a driver driving my 07 kw t800 its a dump truck it has a cat c15 and eaton fuller 8 speed, i know the driver has messed it up but i dont know what exactly is wrong, the truck wont go form 2… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
15,923 satisfied customers
Have a t800 2006 ken worth with c15 engine and chalmers suspension
Have a t800 2006 ken worth with c15 engine and chalmers suspension 46k 4.30 ratio, but fuel economy is not good, how can I improve this, is it the engine, or rear end, other trucks of similar weights … read more
Jim
Jim
Diesel tech.
212 satisfied customers
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Meet the Experts:

Daniel Wilson

Daniel Wilson

5,454 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

5,293 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

15,923 satisfied customers

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

Jeremy

Jeremy

Certified Truck/Bus Technician

2,747 satisfied customers

ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, Network Engineer specializing in CAN faults, Aftertertreatment, and vehicle communications

cumminsdr

cumminsdr

Mechanic

1,824 satisfied customers

All types of Cummins applications

Curtis B.

Curtis B.

Technician

1,806 satisfied customers

Technician turned service manager on multiple lines of trucks and engines, used in industry.

Chris (aka-Moose)

Chris (aka-Moose)

Technician

462 satisfied customers

24 years of experience diagnosing & repairing

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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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