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Just bought a Pete with a 12.7 detroit. Was not running. Got
Just bought a Pete with a 12.7 detroit. Was not running. Got it running after some fuel issue repairs and it is only running on 1,2,3. . we are checking harness. Is there a way to confirm injector sig… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
11,582 satisfied customers
Im rebuilding series 60 11.1, Its tore down, everything
Second Opinion] Im rebuilding series 60 11.1, Its tore down, everything looks good except where my liner seals to the liner bores has a groove from the previous seals, only on the 2nd seal up in 5 cyl… read more
Dieseljunky2
Dieseljunky2
Locomotive Mechanic
Ford Certified Technician
3,612 satisfied customers
1999 PETERBILT 379 WITH A DETROIT 12.7. OPENED THE FUEL
1999 PETERBILT 379 WITH A DETROIT 12.7. OPENED THE FUEL WATER SEPARATOR TO DRAIN THE WATER AND ENDED UP WITH AIR IN THE LINES. TRUCK WONT START AGAIN. HOW CAN I PRIME THE FUEL SYSTEM ON THIS ENGINE SI… read more
NicholasM1019
NicholasM1019
Diesel Technician
GED
4 satisfied customers
1999 Peterbilt 379 vin: ***************** with a series 60
1999 Peterbilt 379 vin: ***************** with a series 60 Detroit DDEC IV need help with two active codes SID:59 FMI:4 PWM auxiliary driver 3 current too low or short due to undervoltage SID:58 FMI:4… read more
BrentR718
BrentR718
6 satisfied customers
1999 Peterbilt 379 vin: ***************** with a series 60
1999 Peterbilt 379 vin: ***************** with a series 60 Detroit DDEC IV getting active codes SID:59 FMI:4 and SID:58 FMI:4 inactive codes PID:172 FMI:3, PID:175 FMI:3 and PID:70 FMI:4… read more
Keiphun Sowell
Keiphun Sowell
AutoDiesel Technology
1,180 satisfied customers
I have a 1996 DDec 3 12.7 Detroit Diesel which smokes like
Pearl I have a 1996 DDec 3 12.7 Detroit Diesel which smokes like crazy in cold temps an I was talking to Pittsburgh Power an they were saying it smokes because it might have 15.0-1 low compression pis… read more
Zachary Thomas
Zachary Thomas
1994 Peterbilt Detroit diesel will not start putting all
1994 Peterbilt Detroit diesel will not start putting all four new batteries and fuel pump just turns over but no start … read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
420 satisfied customers
I have a 99 379 peterbilt that is throwing a # 25 code. It​
I have a 99 379 peterbilt that is throwing a # 25 code . It​ has a series 60 Detroit. What is causing it to throw that code #? … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
419 satisfied customers
Have a Freightliner Columbia 120 detroit 60 series 14 ltr.
Have a Freightliner Columbia 120 detroit 60 series 14 ltr. after heavy rain truck cut off (report from driver). later dash board error FN 43 flashing (checked means coolant low). after topping coolant… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
11,582 satisfied customers
12.7 Detroit 60 series Ecu 128 Sid 249 fail 12 580,000, 2011
12.7 Detroit 60 series Ecu 128 Sid 249 fail 12 580,000 … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
Second opinion] I have 1999 Peterbilt 379 with a Detroit
Second opinion] I have 1999 Peterbilt 379 with a Detroit Diesel Series 60 engine. I recently replaced the ECM and it was programmed with the settings from Detroit based on the engine serial number. (S… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
I have a 92 peterbilt with ddec 3 Detroit. My problem is
I have a 92 peterbilt with ddec 3 Detroit. My problem is that over 1500 rpm my stop and check engine lights come on and engine derates. If I don't let off the throttle it will eventually die also it d… read more
FIX-IT
FIX-IT
Comercial transport technician
Vocational, Technical or Trade Scho
829 satisfied customers
I have a 1999 379 with 60 series Detroit..I've had all 6
I have a 1999 379 with 60 series Detroit..I've had all 6 injectors changed and new injector wiring harness..but computer is still showing 4 and 6 cylinder misfire..can someone please help… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
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
truck /coach technician
Vocational, Technical or Trade School
207 satisfied customers
My 1996 379 I have no power when I turn key switch on, but
My 1996 379 I have no power when I turn key switch on, but I have all my lights batteries are charged. My volt meter was going from 13 volt down to below 10 volts gauge jumping back and forth. Now not… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
11,582 satisfied customers
I have a 2000 Pete 379 with a series 60 12.7 detroit. The
I have a 2000 Pete 379 with a series 60 12.7 detroit. The motor has 25,000 miles on the inframe,new head. Had a problem with the fuel turning black and it turned out to be crush ring problem. Engine h… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
420 satisfied customers
I have a 1994 peterbilt with a 12.7 60 Series engine DDEC II.
I have a 1994 peterbilt with a 12.7 60 Series engine DDEC II. Two nights ago my alternator went out on the truck, it was running until I turned the lights on and tried to get out of a housing subdivis… read more
Dieselman36
Dieselman36
High School or GED
1994 peterbilt dd 2 cruse controle works for high iddle as
1994 peterbilt dd 2 cruse controle works for high iddle as long as parking brake is off if set the cruse high iddle will not work al so cruse will not work at road speed the high idle will work on til… read more
Steve
Steve
Self Employed
High School or GED
30 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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