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Have 99 c-15 that starts cutting out at higher speeds. Runs
Have 99 c-15 that starts cutting out at higher speeds. Runs fine at low speeds. Won't build boost? … read more
Cat Man
Cat Man
Cat Engine Expert
9,562 satisfied customers
I have a 2007 C-15 Acert. This was a crate block in 2016 and
I have a 2007 C-15 Acert. This was a crate long block in 2016 and had a head gasket replaced in Feb of 2017. Cat says it is now out of warranty. Go figure. Yesterday i had smoke coming from my stack a… read more
Cat Man
Cat Man
Cat Engine Expert
9,562 satisfied customers
I have a 2006 peterbilt oil pressure goes from 42# to 80# to
i have a 2006 peterbilt oil pressure goes from 42# ***** 80# ***** 03 while running it is a C-13 acert cat engine do you think it is a sensor and where is it located … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
2,892 satisfied customers
Fuel dumping to right tank from left tank checked the vents
fuel dumping to right tank from left tank checked the vents and are clear can be sitting full on left engine not running and right tank over fills … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
2,892 satisfied customers
Tps sensor a wire 8 volts wire 13 volts c wire 13 volts when
Tps sensor a wire 8 volts b wire 13 volts c wire 13 volts when key on what u think … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,017 satisfied customers
I have an 06 Pete with a 63inch sleeper my co just replaced
I have an 06 Pete with a 63inch sleeper my co just replaced the a/c condenser and charged the system but I'm engine fan won't shut off if it does is only for a second and my compressor cycles every 10… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
254 satisfied customers
Speedometer doesn't work only works part of time but doesn't
Speedometer doesn't work only works part of time but doesn't read right I think short wire … read more
Cat Man
Cat Man
Cat Engine Expert
9,562 satisfied customers
I have a 2003 peterbuilt tachometer.. the truck had a cat
I have a 2003 peterbuilt tachometer.. the truck had a cat motor in it & ive changed to a 12.7 Detroit . I need to know how to set the dip switches on the tachometer. Was told the Detroit setting ratio… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,017 satisfied customers
I have 1996 379 Pete just changed to tall rubber 11r24.5 and
I have 1996 379 Pete just changed to tall rubber 11r24.5 and have 355 ratio how do I set dip switches on speedometer … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,017 satisfied customers
Need to upgrade my semi. I farm in central ND and use my
Need to upgrade my semi. I farm in central ND and use my semi on a grain trailer to haul from the field to my bins and then in the winter spend about 45 to 50 nights hauling about 380 miles round trip… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
2,892 satisfied customers
Have a 2004 peterbilt 379 with CAT C 15 engine. There is a
have a 2004 peterbilt 379 with CAT C 15 engine. There is a broken wire in ECM harness shorting to ground. Having difficulty finding the other end. Need a wiring diagram for power from battery box to E… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,017 satisfied customers
I'm switching a 99 peterbilt from Detroit ddec3 to cat 3406e
I'm switching a 99 peterbilt from Detroit ddec3 to cat 3406e 40 pin. What do I need for the cab. I have the harness from the ecm to the firewall from a donor truck. … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,017 satisfied customers
Temp Guage bouncing btwn 120 & 150 on CAT motor in 2000 Pete
Temp Guage bouncing btwn 120 & 150 on CAT motor in 2000 Pete 379. Coolant ok. Trk seems to run ok just won't build engine temp.… read more
Cat Man
Cat Man
Cat Engine Expert
9,562 satisfied customers
Working on a09 pete 365 got a cat c-13 engine # lee19832 got
working on a09 pete 365 got a cat c-13 engine # ***** got a code of a 154 fmi 14 # ***** output driver?? need wiring diag.. and what it drives… read more
Cat Man
Cat Man
Cat Engine Expert
9,562 satisfied customers
I have a 2008 Pete 379 short hood with an accert cat motor
I have a 2008 Pete 379 short hood with an accert cat motor and I am having problems with fan staying on.… read more
Cat Man
Cat Man
Cat Engine Expert
9,562 satisfied customers
I have a C-15 475 accert in a 2005 Pete 379. It was running
I have a C-15 475 accert in a 2005 Pete 379. It was running terrible under a load only getting to 55mph after about 5 miles of chugging along. We were coming up with codes 72, 94, 95, 97. We traced do… read more
Cat Man
Cat Man
Cat Engine Expert
9,562 satisfied customers
Hi Cat Man, Iam working on a C-15 CAT Accert Engine.Serial
Hi Cat Man, I'am working on a C-15 CAT Accert Engine.Serial # XXXXX engine was starting to run rough then it eventually just quit running.My customer said there was a code displayed on his dash comput… read more
Cat Man
Cat Man
Cat Engine Expert
9,562 satisfied customers
I have a 2004 379 peterbilt with a cat c-15 engine and it has
I have a 2004 379 peterbilt with a cat c-15 engine and it has no throttle response. It just idles at 700 rpm. I replaced the switch under the throttle pedal, the cam position sensor and the crank posi… read more
Cat Man
Cat Man
Cat Engine Expert
9,562 satisfied customers
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Meet the Experts:

Daniel Wilson

Daniel Wilson

3,017 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

9,562 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

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

Jeremy

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ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, EPA 608/609 HVAC Certified, Steering/Suspension and ABS/Brakes Technician

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cumminsdr

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Curtis B.

Curtis B.

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dieseldan55

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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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