Medium and Heavy Trucks

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I have a genie 2668 et with a dual fuel engine. I run it on
I have a genie 2668 et with a dual fuel engine. I run it on gas. In the last few weeks I have experienced significant loss in power. It will stall out going up small inclines. It's also slowed down ra… read more
Curtis B.
Curtis B.
Technician
Associate Degree
991 satisfied customers
2008 Freightliner Columbia day cab vin# 1FUBA5CK38DZ03708.
2008 Freightliner Columbia day cab vin# ***** air drier sneezes but then start purging air few seconds stops then sneeze again and purge. replaced air drier assembly and new governor still doing same … read more
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Wayne
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5H121916 2005 International 4300 DT466 Std trans Loss of
5H121916 2005 International 4300 DT466 Std trans Loss of power Remove fresh air turbo fins move freely did bounce test actuator pivot moves freely with temp up. Actuator does not do pre cycle when key… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
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Ive got a nta-855-ga natural gas cummins engine that wont
ive got a nta-855-ga natural gas cummins engine that wont start. ive got spark air and fuel all to engine but still no start. will not start or fire off of eather either. … read more
Curtis B.
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I have problem with my engine fan runing all the time on
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Steven
Steven
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Associates
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I have a Cummins ISX in my shop that is loosing it's prime.
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Daniel Wilson
Daniel Wilson
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I have a 7FGU30 forklift that is propane that will not
Hi I have a 7FGU30 forklift that is propane that will not start. After new plugs to cap & rotor I have spark. Pulled the big solenoid off the bottom of the regulator I find that with a little push fro… read more
Curtis B.
Curtis B.
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I have a Ford 641 that stopped running - at first it was
I have a Ford 641 that stopped running - at first it was running fine, then when i fixed the fuel shut off under the gas tank, it began to shut off after a few minutes, then completely quit. I've clea… read more
Curtis B.
Curtis B.
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I have a 1997 gmc c7500 with a 366 big block 6.0 liter we
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Roy
Roy
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Looking for wiring diagram for out riggers safety switches
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Daniel Wilson
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We have a H90XL with a v 6 gm engine. purchased in 1992. The
we have a H90XL with a v 6 gm engine. purchased in 1992. The machine starts fine in any weather but runs rough and has no power and also backfires a lot. Could the carburetor be out of adjustment? We … read more
Curtis B.
Curtis B.
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Cat engine loses power throws NO code losing power each trip
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I have a 8.3 cummins engine in my Michigan clark 125B loader
I have a 8.3 cummins engine in my Michigan clark 125B loader and the fuel tank is full. the loader starts and run's fine for a while then starts to cut out and seem's to be running lean and cut's out … read more
Daniel Wilson
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I have a Smith 100 tow behind air compressor that i cant get
I have a Smith 100 tow behind air compressor that i cant get to run right. It uses a ford 302 v8, half the cylinders are the compressor side. When i first bought it, it would build pressure to around … read more
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Just rebuilt a 07 isx with a pdi delete used timing wedges
Just rebuilt a 07 isx with a pdi delete used timing wedges and set the backlash. Engine starts and runs beautifully but am getting very little boost and smokes black under medium to hard acceleration… read more
cumminsdr
cumminsdr
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JCB215 with Perkins AK engine and Lucas DP200 Injection with
JCB215 with Perkins AK engine and Lucas DP200 Injection with Turbo. After 30-60 minutes, the engine loses power and will stall. Can be restarted, but power loss will occur again after 5-10 minutes. In… read more
Eurotruck72
Eurotruck72
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94 gmc topkick c6000 with 366 big block. runs very rough at
94 gmc topkick c6000 with 366 big block. runs very rough at idle and most of the time it stalls out. replaced fuel pump, fuel injectors, fuel filter, spark plugs, wires, cap and rotor. replaced air fi… read more
Jeremy
Jeremy
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Associate Degree
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I have a 1999 freightliner with a 12.7 detroit I have 12.46
I have a 1999 freightliner with a 12.7 detroit I have 12.46 v at the ecm power supply I replaced ecm still wont start. When the truck quit I was told by a shop the ecm was bad It would run when it pul… read more
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Meet the Experts:

Daniel Wilson

Daniel Wilson

3,164 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

11,825 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

Mechanic

1,351 satisfied customers

All types of Cummins applications

Curtis B.

Curtis B.

Technician

991 satisfied customers

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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