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2008 peterbilt 389. C15 cat. Eaton ultra shift 10 speed.
2008 peterbilt 389. C15 cat. Eaton ultra shift 10 speed … read more
Nich1019
Nich1019
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Vocational, Technical or Trade School
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I have a 2009 Peterbilt 386 with an overhauled motor inside.
Hello! I have a 2009 Peterbilt 386 with an overhauled motor inside. The engine has cm870 on the side of it. The issue I'm having is that I was told that the wrong wiring harness was put on after the o… read more
Nich1019
Nich1019
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I have a 2013 Peterbilt 386 cummins isx15 and when you turn
Hi there I have a 2013 Peterbilt 386 cummins isx15 and when you turn the Jake brake switch on it works as it should. The problem is that you can't do a stage one Jake brake or stage 2. It's just stuck… read more
Nich1019
Nich1019
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Working on 2018 Peterbilt glider make my Peterbilt. With
Working on 2018 Peterbilt glider make my Peterbilt . With Detroit 60 series . Cruise control issues . Changed all pressure switches and found cruise only working when we press brake pedal soon we remo… read more
Nich1019
Nich1019
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98 12.7 detroit popping and blows smoke out the stacks. this
98 12.7 detroit popping and blows white smoke out the stacks. this problem is random … read more
Gary A.
Gary A.
Associates in Diesel Technology and Business Management
7 satisfied customers
2009 peterbilt 386 Cummins isx, low coolant and engine light
2009 peterbilt 386 Cummins isx, low coolant and engine light on, cruise and jake doesn't work(lights up on switch's) and engine fan is alway on. Has a new coolant tank and sensor. … read more
Nich1019
Nich1019
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Working on a Peterbilt 386 vin # DD205206.low beam on
Working on a Peterbilt 386 vin # DD205206.low beam on passenger side is not working. Volt gauge shows 5 bolts. Looked for headlight relays but can't find any. Called Peterbilt parts guy I buy from and… read more
Nich1019
Nich1019
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Can I speak with a diese mechanic? When I type my problem
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TomcM28
TomcM28
Owner
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I have a 2006F/L columbia with a detroit series 60 14 liter
I have a 2006F/L columbia with a detroit series 60 14 liter engine. The engine brake does not work on low and on high it seems weak. I verified the switch is working with diagnostic link. What are the… read more
Daniel Wilson
Daniel Wilson
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I do have a peterbilt 2011 386, im trying to install
Hi. I do have a peterbilt 2011 386, im trying to install mirror's aftermarket turn signals and running lights on both sides. Can you help me to find the power source. Thanks … read more
Wayne
Wayne
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I have a 1994 peterbilt 377 with a series 60 Detroit. My
I have a 1994 peterbilt 377 with a series 60 Detroit. My jake breaks are not working they were working fine before we overhauled it… read more
FIX-IT
FIX-IT
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Location of the jake brake on 2013 model 386 peterbikt,
Location of the jake brake on 2013 model 386 peterbikt … read more
Dorian Conley
Dorian Conley
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Vocational, Technical or Trade School
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Cat Man
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I have a 2000 peterbilt with a series 60 Detroit cruise
I have a 2000 peterbilt with a series 60 Detroit cruise control and jake brakes are not working I need help tracing down the problem… read more
Daniel Wilson
Daniel Wilson
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1994 Peterbilt 379 with 60 series Detroit diesel- The brake
1994 Peterbilt 379 with 60 series Detroit diesel- The brake lights only come on if I step on the brakes real hard. If I am using the brakes to slow down not stepping on them hard, they do not come one… read more
Andy
Andy
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Peterbuilt trucks, my sons driving 2011, in the mid west.
Peterbuilt trucks, my son's driving 2011, in the mid west. He says his brakes are Squishy in the sub zero cold weather. Had it checked but found nothing, carrying 70,000lb. loads. Any Service bulletin… read more
Wayne
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C15 truck engine, serial # XXXXX Cat compression brake.
C15 truck engine, serial # XXXXX Cat compression brake. Customer run overhead and engine brake quit working, customer replaced switch... Need troubleshooting and engine brake lash steps...… read more
Cat Man
Cat Man
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I swapped a DDEC 4 out of a peterbilt and put in a DDEC 2 jakes
I swapped a DDEC 4 out of a peterbilt and put in a DDEC 2 jakes on the DDec 2 are different they need to run through a Jake module or something Can you get me a diagram or walk me through what i need … read more
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Meet the Experts:

Daniel Wilson

Daniel Wilson

14,846 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

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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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