Medium and Heavy Trucks

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Related Medium and Heavy Trucks Questions
I HAVE 2016 pete 389 with motorized mirrors that move only
I HAVE 2016 pete 389 with motorized mirrors that move only left -right. i bought another pair from a pete 386 which move left-right and up-down. i installed new mirrors with new mirror switch from pet… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
I have a 2011 peterbilt with the isx15 engine in it engine
I have a 2011 peterbilt with the isx15 engine in it engine number 79430071. I bought it with a blown motor and have it back together now but it won't start. I have a Matco Maximus 3.0 scanner and when… read more
NicholasM1019
NicholasM1019
Diesel Technician
Vocational, Technical or Trade School
9 satisfied customers
I'm trying to find the engine family code for my peterbilt
I'm trying to find the engine family code for my peterbilt 386 … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
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
2012 pet 386. ISX 15. engine s/n 79481931. truck died like
2012 pet 386. ISX 15. engine s/n 79481931. truck died like key was shut off. fuel filter was half empty. no lift pump operation. found relay and jumped power to pump. pump runs. no power to load side … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 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
4,737 satisfied customers
I'm replacing the compressor and I need to know if the new
I'm replacing the compressor and I need to know if the new one is going to do the job … read more
Keiphun Sowell
Keiphun Sowell
Owner Brothers Restoration/Troubleshoot
AutoDiesel Technology
1,321 satisfied customers
Im losing power and fuel mileage on my 2011 Peterbilt 386. I
im losing power and fuel mileage on my 2011 Peterbilt 386. I was trying see what is lambda sensor. … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,740 satisfied customers
I am getting a reading of particulate trap 1pressure on my
I am getting a reading of particulate trap 1pressure on my 2012 peterbilt 386 with a cummings isx15 … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
I got a 2012 peterbilt w a isx15 while im driving the stop
I got a 2012 peterbilt w a isx15 while im driving the stop engine warning light comes on and shows a little #1 . it did have a loss of power also . what can this be ? … read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 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
4,737 satisfied customers
2011 peterbuilt 386 the left rear turn signal will not turn
2011 peterbuilt 386 the left rear turn signal will not turn on with the turn signal switch but works for the flashers. do you have a diagram … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
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
Heavy Duty Diesel Engine Technician
Vocational, Technical or Trade School
I have a 2011 Pete 386 with a 2010 isx15 425st. Serviced
I have a 2011 Pete 386 with a 2010 isx15 425st. Serviced engine oil,fuel filters etc. now I have a low rail pressure code with check engine light on. Went to the shop,diagnosed problem......rail press… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
I have a 386 Peterbilt (2014). I have cab lights but no marker
I have a 386 Peterbilt (2014). I have cab lights but no marker lights on front fenders and no tail lights and of course no trailer lights. They worked earlier shut truck off and then no lights. Thanks… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 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
208 satisfied customers
Im trying to add a moto mirror to my 07 386 pete. I found the
Im trying to add a moto mirror to my 07 386 pete. I found the wires in the dash for the power mirror. But I can not figure out which way to connect the wires. There are 3 wires labeled mirr motor. Whi… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
420 satisfied customers
2011 peterbilt 389 headlights wont come on. Has mirror mounted
2011 peterbilt 389 headlights won't come on. Has mirror mounted led signal lights and when you turn on the park lights or headlights it back feeds to the mirror signal lights and turns them on without… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
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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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