Medium and Heavy Trucks

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Related Medium and Heavy Trucks Questions
I have a 379 Pete, the jake does not work. I have no power
I have a 379 Pete, the jake does not work. I have no power to the jake brake switch. Is this my problem?? … read more
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NicholasM1019
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Where do I find the Peterbilt 379 brake pressure switch for
where do I find the Peterbilt 379 brake pressure switch for cruise control … read more
NicholasM1019
NicholasM1019
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I have a 1996 model 379 peterbilt with a cat 3406e in it.
I have a 1996 model 379 peterbilt with a cat 3406e in it. The cruise control has started not working intermittently. I thought it had to be the on/off switch so I changed it and it still does the same… read more
BrentR718
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Put all new injectors in are 3406e cat. We can't get it to
Put all new injectors in are 3406e cat . We can't get it to start but it will start with starting fluid and run just fine . Before starting fluid there was no tachometer signal when trying to start it… read more
Cat Man
Cat Man
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I need the wiring diagram for a 1995 peterbilt 379 from
I need the wiring diagram for a 1995 peterbilt 379 from firewall to ecm engine serial number is *****… read more
Daniel Wilson
Daniel Wilson
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I have a 2000 w900 wont start and abs light on trailer
i have a 2000 w900 wont start and abs light on trailer blinks when turnsingle is on … read more
Cat Man
Cat Man
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I was needing the wiring diagram for a 3406e 2ws model as i
I was needing the wiring diagram for a 3406e 2ws model as i am meeding to wore the cruise control, jake brakes and a,c straight to ecm. Wiring harness came out of truck Yc056687 and engine is 2WS23960… read more
Cat Man
Cat Man
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I have a 97 Peterbilt 378. I had some welding done in the
I have a 97 Peterbilt 378. I had some welding done in the frame yesterday and the truck ran fine today. While driving today, I noticed my engine brake would only work when I pressed the brake pedal, a… read more
Daniel Wilson
Daniel Wilson
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I have a3406e with a 600hp program in it. I am getting ready
I have a3406e with a 600hp program in it. I am getting ready to put a radiator in it and I'd like to put a bigger cam in it what should I use … read more
Cat Man
Cat Man
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Vocational, Technical or Trade Scho
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Can I take a 70 pin ecm off a 3126 and flashbit to a 3406e,
Can I take a 70 pin ecm off a 3126 and flashbit to a 3406e … read more
Cat Man
Cat Man
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I have 1996 peterbilt with a 3406e in i changed the rad,
i have 1996 peterbilt with a 3406e in i changed the rad, intercooler and harmonic balancer now i have no boost … read more
Cat Man
Cat Man
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Where can I find the location of my sensors on a CAT 3406E
Where can I find the location of my sensors on a CAT 3406E Engine. My engine serial # 6TS27136.… read more
Cat Man
Cat Man
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I am swapping a Cat 3406E (5EK90455 40 pin ecm) into a truck
Hello I am swapping a Cat 3406E (5EK90455 40 pin ecm) into a truck that came with a 3406E (2WS14105 70 pin ecm). I have some wiring diagrams but I'm wondering if you can tell me where to put these wir… read more
Cat Man
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I'm switching a 99 peterbilt from Detroit ddec3 to cat 3406e
I'm switching a 99 peterbilt from Detroit ddec3 to cat 3406e 40 pin. What do I need for the cab. I have the harness from the ecm to the firewall from a donor truck. … read more
Daniel Wilson
Daniel Wilson
11,844 satisfied customers
3406e 2ws cat motor. changed out two a 3406e 5ek cat motor.
3406e 2ws cat motor. changed out two a 3406e 5ek cat motor. need to chage wireing to cumputer. can you help me… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
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We have a 2000 Kenworth T2000 with a Cat engine. It shut down
We have a 2000 Kenworth T2000 with a Cat engine. It shut down and won't start. We have troubleshot every mechanical thing possible. Finally came to believe that it was a computer shut down of some kin… read more
Cat Man
Cat Man
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i do not have power to my guages, cab fan blower, ecm, daytime
i do not have power to my guages, cab fan blower, ecm, daytime running lights. engine starts and cruise switch works but pressing the break pedal does not disengage the cruise checked all the fuses in… read more
Expert
Expert
peterbilt 379exhd: 2000 peterbilt with 3406E model 2WS will
2000 peterbilt with 3406E model 2WS will not start on its own. If we use ether it will though. Truck is in heated shop.… read more
Daniel Wilson
Daniel Wilson
11,844 satisfied customers
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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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