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Related Medium and Heavy Trucks Questions
2012 Pete swapped out spd replaced with 6nz out of
2012 Pete swapped out spd replaced with 6nz out of Freightliner installed program from 2013 Pete glider with 6nz truck starts no cruise gauges odometer installed mew engine harness crank cam and oil p… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
2001 379 pete. Fan runs constantly and kicks off and
2001 379 pete. Fan runs constantly and kicks off and immediately back on sometimes. It takes power to disengage fan...when I ran a bypass from battery to fan toggle it could manually operate it to sav… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
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I have a 07 379 and I'm trying to find the 150 amp breaker
I have a 07 379 and I'm trying to find the 150 amp breaker location … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
2002 379 pete c15 6nz cat .engine will not start without
2002 379 pete c15 6nz cat .engine will not start without either . has new fuel pump new injectors new cam and crank sensors new engine wiring harness new check valves new filter housing, new ecm. Has … read more
Edward Haniewski
Edward Haniewski
General Studies/Automotive
1 satisfied customers
2003 Pete 6nz CAT. 26 months/$21,000 spent trying to fix.
2003 Pete 6nz CAT. 26 months/$21,000 spent trying to fix. Erratic power drop / high coolant temps. After 10 hrs driving it starts to run somewhat better with coolant temps controlled to normal … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
I have a 2009 389 Pete with a sdp cat in it. I'm wanting to
I have a 2009 389 Pete with a sdp cat in it. I'm wanting to know how much trouble swapping it to older 3406e or 6nz would be. I know it will bolt up and that I'll have to do the exhaust mods needed. M… read more
Cat Man
Cat Man
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Peterbilt 379. I flopped my 05 Pete 379 with 63 flat top and
Second opinion] Peterbilt 379. I flopped my 05 Pete 379 with 63 flat top bunk and skidded down the highway on passenger side. They wrote it off, of coarse because it's age. I want to rebuilt it but ha… read more
timdieseltech
timdieseltech
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Vocational, Technical or Trade School
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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
207 satisfied customers
I have a 2003 peterbuilt tachometer.. the truck had a cat
I have a 2003 peterbuilt tachometer.. the truck had a cat motor in it & ive changed to a 12.7 Detroit . I need to know how to set the dip switches on the tachometer. Was told the Detroit setting ratio… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
Have a 2004 peterbilt 379. There is voltage drop after it
have a 2004 peterbilt 379. There is voltage drop after it has been running for about 5 min with lights and cab equipment dimming or stopping. Engine continues to run. Replaced batteries and continues.… 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
4,737 satisfied customers
I have a 2007 Peterbilt, had a MXS Accert changed out cat
I have a 2007 Peterbilt, had a MXS Accert changed out for 6nz cat .how can I use my 2007 engine oil temp gauge MXS had no sending unit for this.… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
Yesterday my speedometer, odometer, voltage gauge and
Yesterday my speedometer, odometer, voltage gauge and instrument light cluster stopped working. Checked fuses and relays in fuse box as well as relay directly behind gauges. Could not resolve the prob… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
97 379 pete with 3406e. Electronic gauges started flickering
97 379 pete with 3406e. Electronic gauges started flickering from zero to passed high mark for a while at the same time the acc relay behind the left dash panel would click in sequence with the gauge … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
207 satisfied customers
. Just rolled 1.1 million miles on my 475 hp acert in
Hello. Just rolled 1.1 million miles on my 475 hp acert in an 05 pete 379. I bought it at 570k miles from my dads rigging company in CA. It has been a VERY reliable engine for me. I have several ???s … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
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I have a 2000 379 Pete 3406 e model with a 72 pin ecm like
I have a 2000 379 Pete 3406 e model with a 72 pin ecm like a c15.66000 miles, my tachometer speedometer froze, amp gauge quit, fuel guage quit, truck dies but restarts...if you unblock ground on batte… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
Have an 05 Pete 379 with the cat with the smaller starter.
Have an 05 Pete 379 with the cat with the smaller starter. Had someone helping me change the starter out . He didn't mark the wires now I'm having difficulty figuring which are negative wires and whic… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
2000 379 pete c15 cat need wiring diagram for ecm got power
2000 379 pete c15 cat need wiring diagram for ecm got power & grownd from battery but no power from switch please help… read more
Cat Man
Cat Man
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Meet the Experts:

Daniel Wilson

Daniel Wilson

4,737 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

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I am ASE Master Truck Certified.

Wayne

Wayne

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

Jeremy

Jeremy

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Curtis B.

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Chris (aka-Moose)

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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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