Medium and Heavy Trucks

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Related Medium and Heavy Trucks Questions
I have 2011 389 with nav plus. Screen locked up it won't do
I have 2011 389 with nav plus. Screen locked up it won't do anything . stereo is on one channel.cant do anything with screen … read more
NicholasM1019
NicholasM1019
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Vocational, Technical or Trade School
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I have 2012 367 Peterbilt with isx Cummins but it's original
I have 2012 367 Peterbilt with isx Cummins but it's original engine and would like to replace it with c15 6nz is there conversion kits available … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
442 satisfied customers
389 pete-isx engine-starts but wont accelerate-shows codes
389 pete-isx engine-starts but wont accelerate-shows codes 91 and 2623 … read more
cumminsdr
cumminsdr
Mechanic
High School or GED
4,333 satisfied customers
I have a 2016 Peterbilt 389 with a 2015 Cummins ISX 550 and
Hello I have a 2016 Peterbilt 389 with a 2015 Cummins ISX 550 and I have 389434 miles do u know if I am in danger of the ceramic fuel pump plungers failing? And do I even have the ceramic fuel plunger… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
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442 satisfied customers
I have a 2016 389 peterbilt with a 550 ISX Cummins I ran out
I have a 2016 389 peterbilt with a 550 ISX Cummins I ran out of fuel and the check engine light came on would like to clear it can you help? … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
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442 satisfied customers
Def lights are on. System is full of DEF. code still says
Def lights are on. System is full of DEF. code still says it's the doser. Doser has been replaced … read more
Eddy
Eddy
HD Truck Tech
GED
2 satisfied customers
Turn signal on right front and left rear are not working on
Turn signal on right front and left rear are not working on a 2014 389 Peterbilt. All fuses are good. Everything worked this morning but when checked after hooking up to load they were not working. … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
2012 Peterbilt 389 shows low coolant & check engine when
2012 Peterbilt 389 shows low coolant & check engine when reservoir is full.Have changed sensor & connector to sensor. Same icons show. … read more
Drue Casey
Drue Casey
Heavy Duty Diesel Mechanic
Vocational, Technical or Trade School
I have a 2016 pete 389 which i would like to put mirror
hello. i have a 2016 pete 389 which i would like to put mirror mounted turn signal lights on. i have located the wires in the dash on both sides for the turn signals and marker lights however the mark… read more
Eddy
Eddy
HD Truck Tech
GED
2 satisfied customers
I have a full tank of DEF. The engine is derated and I have
I have a full tank of DEF. The engine is derated and I have the following codes. 4340, 5246, 1569, 3740, and 6802 it's a 2016 Peterbilt 389 Cummins isx … read more
Eddy
Eddy
HD Truck Tech
GED
2 satisfied customers
I have a 2012 Isx 15 600 hp in a Peterbilt 389, fuel pump
I have a 2012 Isx 15 600 hp in a Peterbilt 389, fuel pump went out took it to local shop they replaced but timing was out, it ran fine just check engine light and code was for mechanical timing. Took … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
I have 2016 Peterbilt. 389. Cummins isx. It just threw a
It just threw a code to shut engine off immediately… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
4,333 satisfied customers
Alex, Need a little help if possible please.... 2016
hi Alex, Need a little help if possible please.... 2016 Peterbilt 389 550 ISX Cummins.. check engine light came on earlier today... SPN 3226 FMI 20. Truck is running great as any other day. Any though… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
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Fault code755 on Cummins isx cm2350 I have tried another
Fault code755 on Cummins isx cm2350 I have tried another fuel pressure sensor another ecm what could cause this code … read more
cumminsdr
cumminsdr
Mechanic
High School or GED
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2009 Peterbilt with isx Cummins on insite trying to do a
2009 Peterbilt with isx Cummins on insite trying to do a stationary regen says clutch pedal is depressed just put in new clutch switch still says depressed try to bypass with jumper wire still says de… read more
FIX-IT
FIX-IT
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Vocational, Technical or Trade Scho
829 satisfied customers
2016 389 peterbuilt 550 isx cummings, ABS code AA left, does
2016 389 peterbuilt 550 isx cummings, ABS code AA left, does that tell me which wheel the code is coming from?… read more
Aaron Evans
Aaron Evans
MOBILE FLEET MANAGER
44 satisfied customers
There is a fault code check engine symbol and exhaust with
there is a fault code check engine symbol and exhaust with exclamation point tried to manual start regen but doesn't seem to start ? … read more
cumminsdr
cumminsdr
Mechanic
High School or GED
4,333 satisfied customers
I acquired a Cummins isx 15 550 engine (cm2350) complete
I acquired a Cummins isx 15 550 engine (cm2350) complete with fuller transmission and emissions after treatment system (egr, scr) off of an 2015 international truck. ecu and wire harness included up t… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
210 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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