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Related Medium and Heavy Trucks Questions
A driver was complaining his speedo was not working and he
a driver was complaining his speedo was not working and he was loosing power. i replaced the speed sensor on the back of the transmission now the speedo works but the reading is high … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
Cat Man, When it rains it pours.....I have another MXS29744
Cat Man, When it rains it pours.....I have another MXS29744 in an 05 Pete 379 VIN 891832. This truck presents with an engine fan concern. The fan does not come on automatically, it does work with the … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,253 satisfied customers
I have a C-16 Cat engine in a 2002 379 Pete. The engine fan
I have a C-16 Cat engine in a 2002 379 Pete. The engine fan will not come on until the temp reached 225 degrees. I have checked the temp gauge accuracy with a hand held laser heat gun and a digital th… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,253 satisfied customers
I have a 2005 379 peterbilt i just bought and i have found
I have a 2005 379 peterbilt i just bought and i have found that the dash lights on the driver side dash do not work cause of no power but the dash panel on the right has working dash lights . I have c… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
I changed rad in 99 Pete 379 so drained Freon out of a/c. My
I changed rad in 99 Pete 379 so drained Freon out of a/c. My engine fan doesn't stop unless I unhook air to fan hub. Engine water temp gauge doesn't seem to work now either. Everything worked before t… read more
Keiphun Sowell
Keiphun Sowell
Owner Brothers Restoration/Troubleshoot
AutoDiesel Technology
1,362 satisfied customers
2007 379 exh with cat 550 acert and 18 speed trans need
2007 379 exh with cat 550 acert and 18 speed trans need clutch return spring locaton … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,253 satisfied customers
97peterbilt 379 low air and buzzer stay on replaced both
97peterbilt 379 low air and buzzer stay on replaced both switches didn't help … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
My speedometer and tachometer, oil pressure, water
My speedometer and tachometer, oil pressure, water temperature,oil temperature, pyro temperature,manifold pressure,and amps gauge all quit working today. If I turn the key on my odometer goes blank … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
210 satisfied customers
Speedometer doesn't work only works part of time but doesn't
Speedometer doesn't work only works part of time but doesn't read right I think short wire … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,253 satisfied customers
I have a c15 accert engine in a 04 Pete the problem is when
I have a c15 accert engine in a 04 Pete the problem is when operating around town works great but when I go on the highway the temp rises to 217 which when the fan cuts in it won't pull the heat out t… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,253 satisfied customers
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 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
Hoping Cat Man can help here? I have a 2008 Pete with a Cat
Hi. Hoping Cat Man can help here? I have a 2008 Pete with a Cat 550 ACCERT, It has had an inframe and then a head gasket later. Anyways, engine is going through to much oil. No external leaks,dealer h… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,253 satisfied customers
Cat c15 2006 mxs. Pete 379 fan stays on. Alban cat tech
Hello cat c15 2006 mxs. Pete 379 fan stays on. Alban cat tech ran diagnostic and air blew out near fan hub. He said I needed a fan hub. Expesive. Could just the airline or air connection be bad?… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,253 satisfied customers
2006 pete 379 with accert , threw code 32 and no throttle responce.I
2006 pete 379 with accert , threw code 32 and no throttle responce.I know 32 is throttle but whar acction should be taken.… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,253 satisfied customers
i have a 2000 pete 379 that had a 6nz12928 cat engin with
i have a 2000 pete 379 that had a 6nz12928 cat engin with 70 pin oem plugin now we installed a cat 6ts 0571 with a 40 in plug in this engin came out of a 1997 pete 379 i need diagrams if possible and … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,253 satisfied customers
I have a C-15 475 accert in a 2005 Pete 379. It was running
I have a C-15 475 accert in a 2005 Pete 379. It was running terrible under a load only getting to 55mph after about 5 miles of chugging along. We were coming up with codes 72, 94, 95, 97. We traced do… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,253 satisfied customers
I have an 01 379 Pete and my cab fan motor stays on in the
I have an 01 379 Pete and my cab fan motor stays on in the off position and will not change from vent , floor or defrost. Also cannot change cold to heat either. The fan still will go through all spee… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
210 satisfied customers
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Meet the Experts:

Daniel Wilson

Daniel Wilson

4,737 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

10,253 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

4,023 satisfied customers

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

Jeremy

Jeremy

Certified Truck/Bus Technician

2,740 satisfied customers

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

cumminsdr

cumminsdr

Mechanic

1,700 satisfied customers

All types of Cummins applications

Curtis B.

Curtis B.

Technician

1,571 satisfied customers

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

Chris (aka-Moose)

Chris (aka-Moose)

Technician

353 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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