Medium and Heavy Trucks

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Related Medium and Heavy Trucks Questions
I am working on a 2009 GMC C5500 with a 7.8L isuzu engine.
I am working on a 2009 GMC C5500 with a 7.8L isuzu engine. It was towed in with a low power concern with check engine light and would not go over 35 mph per the customer. The engine light was on due t… read more
Chris Carr
Chris Carr
Ase Master
Ase Master Tech
202 satisfied customers
My 2009 gmc topkick is messing up again. we ended up
my 2009 gmc topkick is messing up again. we ended up cleaning the cat and taking it to gm dealer the sent it to a truck shop to have the exaust brake wired and programed. the build sheet by vin said i… read more
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Kent Van Wagner
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02 int. 4300 single axle tractor 5spd allison. Truck goes
02 int. 4300 single axle tractor 5spd allison. Truck goes into limp mode after 5/10 miles when bobtailing and within a mile with just an empty trailer. Reduced power. No codes presently … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
254 satisfied customers
With Wormuth truck repair. I have a 2009 chevy with a isuzi
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Jeremy
Jeremy
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Associate Degree
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Its in limp mode ad now it wont start. Its a 2012 isuzu npr
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Andy
Andy
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Vocational, Technical or Trade School
254 satisfied customers
Diesel teck i have a 05 gmc 7500 7.8 isusu diesel goes into
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Daniel Wilson
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I HAVE A 04 7.8L DURAMAX 6500 CHEVY ROLL BACK, LOW POWER
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Wayne
Wayne
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Justin Hebert
Justin Hebert
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I have a speedometer problem on a 2003 GMC C7500. Had no speedometer,
I have a speedometer problem on a 2003 GMC C7500. Had no speedometer, replaced the speed sensor on the rear of the transmission. I works now but bounces around, 10 mph to 80 mph with no real realtion … read more
Daniel Wilson
Daniel Wilson
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Here's my problem...while driving on ghway at 55 mph,
Here's my problem...while driving on highway at 55 mph, the check engine light and the engine fluid light comes on (no blinking) the warning buzzer beeps for 5 seconds, and then goes away. Engine neve… read more
Daniel Wilson
Daniel Wilson
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Clayton. I have a 2006 columbia freightliner with detroit
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Jeremy
Jeremy
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i have a nissan ud 2009 with a j08 engine, it went into
HI i have a nissan ud 2009 with a j08 engine, it went into limp mode a few weeks ago, we had the codes scanned and replaced the fuel suction solenoid, the problem has now reoccurred and disconnecting … read more
Daniel Wilson
Daniel Wilson
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GMC c6500: I'm working on a 2006 GMC c6500 with a 7.8 duramax
I'm working on a 2006 GMC c6500 with a 7.8 duramax in it. When the truck starts to get any type of torque on it, it goes into some type of limp mode. Truck does not shut down but it has no throttle re… read more
Pete
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General auto certifications
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Hello, my truck has lost power the old turbo was leaning oil
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Roy
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I have a C7 cat [kal85083] with a code 102-3 boost pressure
I have a C7 cat [kal85083] with a code 102-3 boost pressure high[25].I used a lap top with cat soft ware to retrieve this code.It is not an active code. Customer complains that truck goes into limp mo… read more
Cat Man
Cat Man
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Hi I have freightliner columbia with detroit 60 engine. 1.
Hi I have freightliner columbia with detroit 60 engine. 1. Recently at the begining of the driving the turbo gauge is sooting all the way upto 50. If gas paddle is released it comes down and after 5-1… read more
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I have a 2007 Ford F-650 Cummins 5.9L 124,000 milesEngine
I have a 2007 Ford F-650 Cummins 5.9L 124,000 miles Engine code that Is flashing on the dash is 4-3-1 Having random stop engine light coming on from time to time. It shuts the truck down to a "limp mo… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,351 satisfied customers
I have an 2006 Sterling truck with an allison transmission
I have an 2006 Sterling truck with an allison transmission , No matter what gear I put it in it automatically goes into 4 th gear , Its got new filters and fluid in it !! Yes I am still waiting for a … read more
diesel-tech
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Meet the Experts:

Daniel Wilson

Daniel Wilson

2,803 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

4,530 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

2,892 satisfied customers

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

Jeremy

Jeremy

Certified Truck/Bus Technician

2,243 satisfied customers

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

cumminsdr

cumminsdr

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All types of Cummins applications

Curtis B.

Curtis B.

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

dieseldan55

dieseldan55

Contractor

74 satisfied customers

Road Service mechanic for Volvo Construction.

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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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