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All is well with you i'm looking for info on a 3406e 5ek
Hey hope all is well with you i'm looking for info on a 3406e 5ek tach wiring in a 1996 Western Star 4964F … read more
Andy
Andy
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Vocational, Technical or Trade School
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1995 peterbilt 379 engine cat 3406e, the engine fan dont
1995 peterbilt 379 engine cat 3406e, the engine fan dont work when engine is asking for, the fan works from the cab override switch, so the solenoid and harness from the switch work, need some diagram… read more
Cat Man
Cat Man
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1995 peterbilt 379 with a crate engine from 1998, the engine
1995 peterbilt 379 with a crate engine from 1998, the engine dont go on when the ac high pressure is high, also i think that the engine fan dont go on even if the engine ecm is calling for it i did th… read more
Daniel Wilson
Daniel Wilson
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I'm having electrical issue with my 96 Pete 379. I have
Hello. I'm having electrical issue with my 96 Pete 379. I have power to turn on the engine and run it. But all my gauges needles froze where last time they were running and no power to ac or heater. N… read more
Wayne
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Fan clutch will not disengage while driving and manual
fan clutch will not disengage while driving and manual switch not working in cab. … read more
Andy
Andy
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I have a 95 5ek cat ave the engine is derating, the codes
I have a 95 5ek cat ave the engine is derating, the codes are 12 & 27 so I am trying to figure out which wires on the coolant sensor do(there are 3) … read more
Cat Man
Cat Man
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I have a 1996 Peterbilt 379 the fuse for the tachometer
I have a 1996 Peterbilt 379 the fuse for the tachometer speedometer alternator and a few extra accessory gauges will blow as soon as you plug it in I'm not real sure how to locate where the short may … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
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Have a 3406e in my 2000 model 379 and my engine fan comes on
Have a 3406e in my 2000 model 379 and my engine fan comes on and off at highway speed. It's not running hot. I've replaced the fan sensor on fire wall and a/c sensor on side of the radiator. The fan a… read more
Cat Man
Cat Man
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Catman, Have a problem with a 5EK not starting, not getting
Hey Catman,Have a problem with a 5EK not starting, not getting any engine speed, do not have any engine speed codes, just needing some advice Thanks… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
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I have a 2005 Pete 379, AC won't turn on ,system is charged,
I have a 2005 Pete 379, AC won't turn on ,system is charged, I need a wiring diagram for the system, all fuses test good, don't think I have power to the control panel switch for AC , I have it apart … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
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The fan doesnt come on with jakes or when engine temp is hot
the fan doesnt come on with jakes or when engine temp is hot in our 1998 peterbilt 378 with a 3406e … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
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Lol m working on a 1998 peterbilt that the speedometer isn't
lol m working on a 1998 peterbilt that the speedometer isn't working. Replaced sensor already. Cat et is not registering any speed either. Possibly wiring between sensor and ecm?… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
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I have a 97 Pete with 3406e 5ek. The cruse control works
I have a 97 Pete with 3406e 5ek. The cruse control works until I turn on the air conditioner. It will hold for a few seconds and then quit. It will hold a fast idle with a/c on when sitting still. Any… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
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
Auto Mechanics 1&2/diesel mech
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I have a 2008 Pete 379 short hood with an accert cat motor
I have a 2008 Pete 379 short hood with an accert cat motor and I am having problems with fan staying on.… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
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I need a lay out of the fuses and brakers and usage chart
I need a lay out of the fuses and brakers and usage chart for a 1996 peterbilt 379. *****@******.***. Thank you… read more
kwpetetech
kwpetetech
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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 1990 379 day cab, 3406 ac problems, I have power
peterbilt 1990 379 day cab, 3406 b ac problems, I have power to dash switch through relay on fuse block, fan in cab turns on , blows ok. have power in to high pressure for ac fan switch for big motor,… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 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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