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2012 peterbilt 386 all lights are working except trailer
2012 peterbilt 386 all lights are working except trailer brake lights I'm getting no power to pig tail plug for trailer brake lights. I changed brake switches and relay and still not working?? … read more
Mikael
Mikael
Bachelor's Degree
150 satisfied customers
Have ISX cummins that is slobering out of exhaust behind
Have ISX cummins that is slobering out of exhaust behind turbo. Believe it is fuel. Can you tell me cause … read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
Could battery cables possibly be the problem have tried all
Could battery cables possibly be the problem have tried all of the above and same problem just 8000 Mike's on a total rebuild. Was running great turned a corner and this trouble started … read more
Scott Anthony
Scott Anthony
Master Technician
HS Diploma
2 satisfied customers
Have a 2009 386 peterbilt with no dash lights or marker
have a 2009 386 peterbilt with no dash lights or marker lights. but when turn key on initially dash lights work. does peterbilt run 5 volt supply to switches? … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,927 satisfied customers
I am getting fuel in the oil on a isx cummins 2011 engine.
i am getting fuel in the oil on a isx cummins 2011 engine … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
418 satisfied customers
Saying fuel pressure delivery is the fault code and it wont
Saying fuel pressure delivery is the fault code and it wont start … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
418 satisfied customers
I have a 2011 386 peterbilt show DPF fuel pressure delivery
I have a 2011 386 peterbilt show DPF fuel pressure delivery code and a clogged dpf symbol but just had the dpf filters cleaned but symbol stays active for clogged … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
418 satisfied customers
2010 Peterbilt 386 13 speed transmission Cummins ISX 425ST
2010 Peterbilt 386 13 speed transmission Cummins ISX 425ST CPL 2732 What is the max hp this engine can be turned up to?… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
08 Cummins ISX 386 peterbilt. Is overheating when it pulls a
08 Cummins ISX 386 peterbilt. Is overheating when it pulls a grade and engine shuts down … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
207 satisfied customers
I have a 2012 Cummins is 15 in peterbuilt 386. I've had the
I have a 2012 Cummins is 15 in peterbuilt 386. I've had the def system disconnected some time back. Engine started running hot as the summer months came. I change the thermostat and replaced with new … read more
Roy Belding
Roy Belding
7,528 satisfied customers
Fuel Rail Pressure Sign. 2013 Peterbelt 386, ISX 15 Cummins.
Last time around 2000 miles ago , This sign came, i went to peterbilt dealer, They changed the fuel filter, and SCR , NOX, Temp sensor. Then I run around 500 miles this sign came again, when I try to climb at moutain. Then go back to same dealer back, they said bettery cables loose that the reason. Run again 2000 miles now same sign came again on the mountain. … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
207 satisfied customers
2009 386 with Cummins ISX. Lose throttle and engine light
2009 386 with Cummins ISX. Lose throttle and engine light comes on. Code is throttle position. replaced 2 tps's, both the harnesses to ECM, and the ECM. Added more grounding and cleaned all connection… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,927 satisfied customers
I have an ISX 1 EGR DPF pushes coolant out the overflow, in
i have an ISX 1 EGR DPF pushes coolant out the overflow, in last two months have replaced egr cooler and compressor and have run tests for combustion gas tests also three times, system pressure tested… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
We Have a 2008 386 Peterbilt with Cummins ISX Engine , Driver
We Have a 2008 386 Peterbilt with Cummins ISX Engine , Driver Says Oil Pressure is Fluctuwating Between 20 & 60 Lbs , Normal Pressure has been 38 lbs he changes Oil Filter & Made No Difference… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
Hello I have a 2004 Volvo 780 tractor. when I run the self
Hello I have a 2004 Volvo 780 tractor. when I run the self test on the dash I get power supply 4. I al so need a wire diagram for the A/C system front the control unit to the compressor… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
207 satisfied customers
im thinking about buying a peterbilt 386 tomorrow with a isx550
im thinking about buying a peterbilt 386 tomorrow with a isx550 in it but it has 643,000 miles.How do you feel about that and as well as a c-15 accert 547,000… read more
Wayne
Wayne
Journeyman
14,866 satisfied customers
I have a 2008 peterbilt 386 with a cummins isx. and randomly
I have a 2008 peterbilt 386 with a cummins isx. and randomly driving down the highway the cruise will shut off fan will turn on and jakes wont work. This happens all at once then drive for awhile and … read more
Don
Don
fleet superintendent
Vocational, Technical or Trade Scho
1,636 satisfied customers
Harness, fuses, what? Just got 2008 Peterbilt 386 with a Cummins
Harness, fuses, what? Just got 2008 Peterbilt 386 with a Cummins ISX Signature 600 out of MHC Denver. After having two (2) sensors replaced - the pressure sensor & the TPS Assy (which was under warran… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
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Daniel Wilson

Daniel Wilson

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I am ASE Master Truck Certified.

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

Jeremy

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Curtis B.

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Chris (aka-Moose)

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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