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Related Medium and Heavy Trucks Questions
2006 Peterbilt 387 click no start. Checked batteries and
2006 Peterbilt 387 click no start. Checked batteries and replaced 2 bad ones. Have constant power to solenoid from batterie. … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
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2009 peterbilt 387 a/c quit. no power to switch on dash.
2009 peterbilt 387 a/c quit. no power to switch on dash … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
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2012 Peterbilt 387, brake lights won't go off even though
2012 Peterbilt 387, brake lights won't go off even though wires are unhooked and fuses pulled … read more
Daniel Wilson
Daniel Wilson
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I can not obtain wiring schematics for a 2011 587. 2011
yes iba doing the repair myself. and there is no power to the a\c clutch … read more
Mike
Mike
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I am working on a 2007 Peterbilt 387, it has a Eaton
I am working on a 2007 Peterbilt 387, it has a Eaton Autoshift no clutch pedal. The transmission will not go into gear … read more
Mike
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2009 Peterbilt with Cummins ISX, would like OEM wiring for
2009 Peterbilt with Cummins ISX, would like OEM wiring for Idle validation switch. I have a flash code 431. … read more
Daniel Wilson
Daniel Wilson
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Peterbilt ISX engine engine brake stopped working think it's
Peterbilt ISX engine engine brake stopped working think it's just a relay or fuse but do not have diagram … read more
Daniel Wilson
Daniel Wilson
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I have a 2011 387 Peterbilt with a isx and the engine fan
Hi I have a 2011 387 Peterbilt with a isx and the engine fan will not shut off. T … read more
Pete
Pete
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I blew a fuse on cigarette plug in front dash. Where is the
I blew a fuse on cigarette plug in front dash. Where is the fuse located? … read more
Aaron Evans
Aaron Evans
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I have a Peterbilt truck model 387 year 2009 with an
Good afternoon, I have a Peterbilt truck model 387 year 2009 with an automatic transmission (Eton) that don't want to shift tears… read more
Wayne
Wayne
Journeyman
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I have 2000 Nov Peterbilt 387 the stop lights constantly on,
hi, I have 2000 Nov Peterbilt 387 the stop lights constantly on, when I check turn signals for both left and right they seemed to be working correctly, but when the are no turn signals or hazard light… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
I have a 2005 387 Peterbilt. With. no running / marker
Hi I have a 2005 387 Peterbilt. With. no running / marker lights to the trailer is there a separate fuse/ relay for this circuit? if so were is it located? P.S.all the lights on the truck work… read more
Jeremy
Jeremy
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Yesterday my speedometer, odometer, voltage gauge and
Yesterday my speedometer, odometer, voltage gauge and instrument light cluster stopped working. Checked fuses and relays in fuse box as well as relay directly behind gauges. Could not resolve the prob… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
I have a 2005 387 Peterbilt. With. intermittent backup
Hi I have a 2005 387 Peterbilt. With. intermittent backup lights sometimes they work most times they don't what is the most likely cause ? Also where is the backup light switch? I see one with 2 wires… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
13,191 satisfied customers
Im an O/O with a 2009 Pete 387. I purchased the extra
Im an O/O with a 2009 Pete 387. I purchased the extra guage/dash panel kit off of ebay. Checked/tested the guages and statt guage test was good on self test. However i soon found that pyro, boost, fro… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
I got A 2011 387 PETERBILT AND THE CHECK Engine is on been
I got A 2011 387 PETERBILT AND THE CHECK Engine is on been the shop every month I had it .every time they fix go down the road 300 miles the light comes back on… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
Hi I have a 2005 387 Peterbilt. With. No high beam. And no
Hi I have a 2005 387 Peterbilt. With. No high beam. And no reverse lights I tried a new turn signal switch and head light bulbs to no avail. Where can I get a wiring schematic? Also do the to 2 items … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
203 satisfied customers
I have an 07 Peterbilt 387, and the truck has an problem where
I have an 07 Peterbilt 387, and the truck has an problem where the marker lights keep flashing On/Off. I heard a buzzing noise coming from the relay in the fuse box, and replaced the Marker Lamp relay… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
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Daniel Wilson

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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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