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Peterbilt 379. I flopped my 05 Pete 379 with 63 flat top and
Second opinion] Peterbilt 379. I flopped my 05 Pete 379 with 63 flat top bunk and skidded down the highway on passenger side. They wrote it off, of coarse because it's age. I want to rebuilt it but ha… read more
timdieseltech
timdieseltech
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Vocational, Technical or Trade School
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I truly don't think this is a question which can be answered
I truly don't think this is a question which can be answered without more in depth diagnostics. but here I go (the short version) I bought another truck, 2003 379x Pete, C15, 6NZ, 18 speed … read more
Doug Barnowski
Doug Barnowski
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99 pete 379 6nz cat amp gauge jumps to +100 amps at start
99 pete 379 6nz cat amp gauge jumps to +100 amps at start up, drops back down after a short time replaced batteries and alternator, not sure where to go from here… read more
Jeremy
Jeremy
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Associate Degree
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I have a c15 acert and a 2001 c15 single turbo in a Pete can
I have a c15 acert and a 2001 c15 single turbo in a Pete can I swap them and what problems would I have… read more
Cat Man
Cat Man
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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
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I have a 1999 pete with a 2ws with a broken crank and i am
I have a 1999 pete with a 2ws with a broken crank and i am replacing with a 5ek i was told to get the harness from cat 40 to to 70 pin part#(###) ###-####the more i read the more i think this harness … read more
Cat Man
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I have a 2006 Pete 387. 1.2 million miles and the c-15 acert is worn out.
Hello, I have a 2006 Pete 387. 1.2 million miles and the c-15 acert is worn out. I am considering an in frame....cat offers a platinum with a four year warranty. Is this the right path in your opinion… read more
Cat Man
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. Just rolled 1.1 million miles on my 475 hp acert in
Hello. Just rolled 1.1 million miles on my 475 hp acert in an 05 pete 379. I bought it at 570k miles from my dads rigging company in CA. It has been a VERY reliable engine for me. I have several ???s … read more
Cat Man
Cat Man
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we have a 3406E truck engine serial number 1LW18593 and we
we have a 3406E truck engine serial number 1LW18593 and we need to know the engine family number… read more
Cat Man
Cat Man
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Hi Cat Man I am needing some help. I bought a truck with a
Hi Cat Man I am needing some help. I bought a truck with a SDP acert with broken rockers and housing. I replaced all those parts to find low power and was unhappy with engine I never drove an acert so… read more
Cat Man
Cat Man
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hi,i bought my 2002 flate top pete in2009. 475 cat but previes
hi,i bought my 2002 flate top pete in2009. 475 cat but previes owner rebuilt motor from cat and thay tune up to 550 with 370 rear ends 275/8022.5 tires i drive 60mph fuel milege with pulling flatebed … read more
Cat Man
Cat Man
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I want to put a 6nz engine in a 1981 Peterbilt that has an
I want to put a 6nz engine in a 1981 Peterbilt that has an A model cat engine in it Would you happen to know how much difference there is in the mounting brackets… read more
Cat Man
Cat Man
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Did an in frame on a 6nz. Platinum kit. Valves and pistons
Did an in frame on a 6nz. Platinum kit. Valves and pistons hit when barring motor over. Apparently when clutch was replaced on the road the so called mechanic put the flywheel up wrong. My mechanic sa… read more
Cat Man
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I pulled a continental four cyclinder flathead engine from
I pulled a continental four cyclinder flathead engine from a Model 422S, Type G and installed it into another older Baker tow motor. I had to swap the oil pan and front cover but the blocks looked ide… read more
Wayne
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Cat c15 6nz rebuild kit: Keeps blowing fire rings around exhuast valve
Catman I have a 6nz that I put a bxs crank and a rebuild kit for it, a bxs in. It has been running good but the head gasket won't stay in it. I keep blowing or burning the fire rings around the exhaus… read more
Cat Man
Cat Man
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Hi, Just trying to find a reason for this. I did an inframe
Hi, Just trying to find a reason for this. I did an inframe on a C-15 Cat Serial #6NZ. I did it 7 months ago, there is 110,000KM since I did it. Today there was a jake problem that showed up. Long sto… read more
Cat Man
Cat Man
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cat man I have a turbo question. I have two c15s one in a
cat man I have a turbo question. I have two c15s one in a flat top pete that we rebuilt in the spring and the other in a midrise that we just rebuilt. Both are 6nz motors. the one in the spring we put… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,530 satisfied customers
Have a c15 6nz rebuilt 1 month ago because putting antifreeze
Have a c15 6nz rebuilt 1 month ago because putting antifreeze in base around bottom of #2 liner because o rings bad. Liner protusion good and block deck good, first rebuild. After 3 weeks starting put… read more
Cat Man
Cat Man
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4,530 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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