Medium and Heavy Trucks

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I need help im half way on a 07 pete 379 originally acert
I need help im half way on a 07 pete 379 originally acert put lower comp piston packs, switched harness to bxs 70 pin with repinned plug to 6nz and 70 pin ecm with 7cz file and motor works just no gau… read more
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Engine fan won't turn off. 1994 Pete 379 with 6nz cat has a Horton fan clutch … read more
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Nich1019
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On a 1992 379 I am looking for a wiring diagram for the
On a 1992 379 I am looking for a wiring diagram for the speedometer, trying to see if I have correct power and ground … read more
Andy
Andy
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Where's the fuse located on 2001 peterbilt 379 that powers
Where's the fuse located on 2001 peterbilt 379 that powers the 6 pin diagnostics port ? … read more
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I have a 2005 peterbilt that originally had an isx. But
I have a 2005 peterbilt that originally had an isx. But previous owner converted it to a 6nz. It has had a die/no start issues for a few weeks but mother that he left the driver stranded. There is no … read more
Daniel Wilson
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I have a 6nz in a peterbilt and put a rear structure gasket
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Wayne
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Very loud hissing sound and loss of power and black smoke .i
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Curtis B.
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Engine not running right im getting codes 46,38,32,26,14 on
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Cat Man
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Have 1992 379 peterbilt shop ecently replace old wiring.
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Jeremy
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Have a 2007 Pete 379 w/ c13 10 speed Eaton. Been getting
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spankyjr1
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I have a 2004 C-15 Acert Single turbo conversion Peterbilt
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Cat Man
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I have a 2009 389 Pete with a sdp cat in it. I'm wanting to
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Cat Man
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Cat man! I have a 1996 peterbilt 379 with a 3406E, serial#
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I have a 2007 Peterbilt, had a MXS Accert changed out cat
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Daniel Wilson
Daniel Wilson
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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
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Hi Cat Man I am needing some help. I bought a truck with a
Hi Cat Man I am needing some help. I bought a truck with a SDP acert with broken rockers and housing. I replaced all those parts to find low power and was unhappy with engine I never drove an acert so… read more
Cat Man
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Hi I have a 2007 peterbilt 379 with a c15 accert in it nxs.
Hi I have a 2007 peterbilt 379 with a c15 accert in it nxs. Will a 2000 6nz fit in it with out major modifications?… read more
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Meet the Experts:

Daniel Wilson

Daniel Wilson

6,062 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

5,353 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

5,115 satisfied customers

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

Jeremy

Jeremy

Certified Truck/Bus Technician

2,756 satisfied customers

ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, Network Engineer specializing in CAN faults, Aftertertreatment, and vehicle communications

Curtis B.

Curtis B.

Technician

1,947 satisfied customers

Technician turned service manager on multiple lines of trucks and engines, used in industry.

cumminsdr

cumminsdr

Mechanic

1,886 satisfied customers

All types of Cummins applications

Chris (aka-Moose)

Chris (aka-Moose)

Technician

641 satisfied customers

24 years of experience diagnosing & repairing

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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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