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I HAVE 2002 peterbilt 379 vin 1XP-5DB9X-0-2N573748, ITS A
I HAVE 2002 peterbilt 379 vin 1XP-5DB9X-0-2N573748 … read more
Nich1019
Nich1019
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Vocational, Technical or Trade School
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I need help finding a seal for the power steering pump input
I need help finding a seal for the power steering pump input shaft on a 1984 peterbilt. The pump has no numbers on it and the seal looking in from the top has zxb lhm 3 21 35 7 on it.… read more
Joe Green
Joe Green
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I would like to know what engine and transmission comes with
I would like to know what engine and transmission comes with this truck please 2007 Peterbilt 379*****************… read more
Nich1019
Nich1019
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Vocational, Technical or Trade School
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I have a 1995 379 peterbilt with a cummins n-14 celect plus
i have a 1995 379 peterbilt with a cummins n-14 celect plus ACC fuse continues to blow and engine fan will not work automatically also the volt gauge and speedo are out as well … read more
Nich1019
Nich1019
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I have a 3406 in2003 Pete 379. No power to pin 21. Need to
I have a 3406 in2003 Pete 379. No power to pin 21. Need to know where it gets it's power from. … read more
Nich1019
Nich1019
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I have 1997 3406 e 379 well i put him on gear losing trade.
I have 1997 3406 e 379 well i put him on gear losing trade … read more
Daniel Wilson
Daniel Wilson
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1995 379 Pete N14 celect after running coming of the fuel or
1995 379 Pete N14 celect after running coming of the fuel or cruise the rpms stick at 1000 … read more
Andy
Andy
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214 satisfied customers
Boost reading on scanner is 31.872 but mechanical gauge goes
Boost reading on scanner is 31.872 but mechanical gauge goes up to 39 psi … read more
Wayne
Wayne
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95 peterbilt 377 with a eaten fuller 18spd. Gear oil leaking
95 peterbilt 377 with a eaten fuller 18spd . Gear oil leaking around front collar. Also does the collar and clutch brake supposed to spin when engine is running? … read more
Wayne
Wayne
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Cat Man, I have a Cummins and I haven't learned my way
Hi Cat Man , I have a Cummins and I haven't learned my way around Just Answer yet. 1999 Peterbilt 379 N14 Cummins Celect. Oil Temperature gauge inoperable and coolant/ antifreeze won't build heat unle… read more
cumminsdr
cumminsdr
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I have a 1996 peterbilt 379 with a rebuilt N14's celect
I have a 1996 peterbilt 379 with a rebuilt N14's celect Cummins. It will not do a diagnostic code check and will not show codes on instrument panel on the dash. Last week I was experiencing no throttl… read more
Daniel Wilson
Daniel Wilson
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Bought a used 1995 Peterbilt 379. Last owner said no issues
Bought a used 1995 Peterbilt 379. Last owner said no issues with headlights. Just got it shipped to me. Turn on headlights dash says low beam is on. Passengers low beam is bright and on drivers side l… read more
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Wayne
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98 PETERBILT, the speedometer works but shows no speed on
98 PETERBILT, the speedometer works but shows no speed on the computer, cruise does not set. … read more
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1995 Peterbilt n14 Cummins the speedometer quit put new
1995 Peterbilt n14 Cummins the speedometer quit put new sensor and gauge in still not reading checked wires and all ohm out any solution? … read more
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Have an n14 cummins esn185575 cpl 2025 timing code tu need
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cumminsdr
cumminsdr
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I have a customer with a 1995 Freightliner currently has a
I have a customer with a 1995 Freightliner currently has a Cat 3406E in it we are currently in the process of doing an engine change to a N14 cummins on this chassis. I was wondering if I could get th… read more
Daniel Wilson
Daniel Wilson
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I'm trying to figure out how to adjust Jake brake on a 89
I'm trying to figure out how to adjust Jake brake on a 89 model peterbilt with a 3406 b cat engine. Jake works , just doesn't slow the truck down any… read more
Cat Man
Cat Man
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Vocational, Technical or Trade Scho
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I change my transmission and tire size now I need to figure
I change my transmission and tire size now I need to figure how to calibrate my speedometer can anyone tell me how I can set the switches on the back of speedometer… 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

17,487 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

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

cumminsdr

cumminsdr

Mechanic

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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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