Medium and Heavy Trucks

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I have a 1995 peterbilt 379 with a cummings n14 Celect plus
i have a 1995 peterbilt 379 with a cummings n14 Celect plus i am trying to find the engine fan relay location ( fan is constantly staying on) … read more
Andy
Andy
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Im working on a c 12 1999 pete had to replace e c m got a
im working on a c 12 1999 pete had to replace e c m got a reman & tac didn't work no power had to send it back for reprogram got it back tac works but no power found codes in ecm thay are temp codes; … read more
Jeremy
Jeremy
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Have a 2002 series 60 12.7 in a freightliner century with
Have a 2002 series 60 12.7 in a freightliner century with the ignition turned dash reads 2 active codes hit the sys override eng protect flashes 46. Ck eng flashes43 can u help me … read more
Roy
Roy
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Replace alternator on my tl150 still having stalling issues
replace alternator on my tl150 still having stalling issues and radiator light is flashing. I f I connect a battery booster to the battery it starts fine, but will not run, battery was tested at local… read more
Curtis B.
Curtis B.
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I have a 2013 peterbilt model 320 vin 3BPZL70X8EF241480. I
I have a 2013 peterbilt model 320 vin 3BPZL70X8EF241480 . I replaced the blower motor due to it being burnt up. Well iv installed in one does not work. Replaced resistor and switch pannel still not wo… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
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I have a 2004 freightliner m2 with c7 cat. Oil pressure and
i have a 2004 freightliner m2 with c7 cat. Oil pressure and water temp and tach willl not readout. They sweep up etc..when turning on ignition but fo no rrgister when running … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
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Where is the ECM module located. D5g xl Wgb03756. We have
Yes we have replaced both batteries and have had the alternator checked … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
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I have a 2001 international dt466e starts right up, idles
I have a 2001 international dt466e starts right up, idles all day(bucket truck ) … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
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On a 2007 peterbilt 387 with a c13, I changed chassis
On a 2007 peterbilt 387 with a c13, I changed chassis electrical harness, power distribution box (fuse box) and attached wiring and also replaced ecm to truck harness. I cannot get any communication f… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
7,517 satisfied customers
I have a 2006 4300 dt466 no power to compressor. 4300sba42.
Yes I want to fix my self I've just started back using truck after replcing egr ac was working pulled system down recharged still nothing … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
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I have a 1999 Peterbilt with an N14 Plus that showing the
I have a 1999 Peterbilt with an N14 Plus that showing the following fault code 251: 4 power supply. Can you tell me what this means or where to start looking. I can not find this code for this engine.… read more
Jeremy
Jeremy
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Associate Degree
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I have a 2012 386 with the Pacar engine I parked it months,
I have a 2012 386 with the Pacar engine I parked it for 3 months, I went to stat it and it wont start I checked and I have power to everything except the 2 30 amp fuses in the box under the hood. I us… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
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2003 freightliner columbia day cab series 60 engine had flash code 32, 42. Do you have the troubleshooting steps and wiring diagram? Thanks… read more
Wayne
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I have a 1992 Peterbilt 379 with a N14. When you start the
I have a 1992 Peterbilt 379 with a N14. When you start the truck cold, the idle is at 650-700 rpm, but 15-16 minutes later it will increase to 1000 rpm and stay there the rest of the day. I have timed… read more
Daniel Wilson
Daniel Wilson
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Working on a 2009 Bluebird bus with a Cummins 8.3 serial
Working on a 2009 Bluebird bus with a Cummins 8.3 serial #46939376. Bus has an intermittent crank but no start, usually after driving for a half hour or more than shutting off for an hour or so. No co… read more
Daniel Wilson
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i have a code reading flash 352sid 232 fmi 04 low voltage
i have a code reading flash 352 sid 232 fmi 04 low voltage at engine position 5v supply cant find what it is… read more
Daniel Wilson
Daniel Wilson
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i replaced the cummins motor in my freightliner vin.# XXXXX
i replaced the cummins motor in my freightliner vin.# XXXXX and my helper remover some wires without labeling them.they are the wires that go to the two sensors on the middle head. they are screw type… read more
FIX-IT
FIX-IT
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Vocational, Technical or Trade Scho
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I have a 2003 international 4200 with a vt365 engine. Truck
I have a 2003 international 4200 with a vt365 engine. Truck will not start. Engine will not spin over with key. Tried jumping across starter and engine will spin over but not start. Fuses in battery b… read more
tkman55
tkman55
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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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