Medium and Heavy Trucks

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I have a c15 cat thee was fuel in my coolant so i had all
I have a c15 cat thee was fuel in my coolant so i had all the injector cups replaced and after about 2000 miles i have lost about 4 gallo a of coolant with no visible leak seems like it may be going i… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,995 satisfied customers
Yesterday I was removing the fuel from the tanks from my
Hi, yesterday I was removing the fuel from the tanks from my 2004 t600 with c15 acert engine and I notice that the fuel was black. I suspect and appears to me is engine oil. I check the oil level and … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,995 satisfied customers
I have an O7 Freightliner where is a C15 acert twin turbo at
I have an O7 Freightliner where is a C15 acert twin turbo at 475 horse I've driven it over 300,000 miles recently I had an overheating issue and it cos they had to crack and I had it in the shop and I… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,995 satisfied customers
I have a 2006 t800 with a cat c15 motor. I had a complete in
I have a 2006 t800 with a cat c15 motor. I had a complete in frame done at 1,225,000 miles. It now has 1,485,000 miles. It has been using 1 gallon of oil every 5000 miles right after oil change and th… read more
Steven
Steven
Triage Tech/Shop Foreman
Associates
194 satisfied customers
I have a Cat C 18acert which is only a year old and has been
Hi. I have a Cat C 18acert which is only a year old and has been using 14 litres of lube oil every 220 hours and 13,000 litres of fuel. The fuel consumption is good but I worry about the amount of oil… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,995 satisfied customers
Just in framed my mxs c15 last week its been about 600 miles
just in framed my mxs c15 last week its been about 600 miles and every time i pull a big hill loaded at 105k i lose about a gallon of oil out the blow by tube, which it did that before the inframe and… read more
Eddy
Eddy
HD Truck Tech
GED
2 satisfied customers
05 c15 getting oil in fuel tanks using a gallon of oil every
05 c15 getting oil in fuel tanks using a gallon of oil every 1000 miles … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,995 satisfied customers
2007 Cat C15 Acert, 1.2 million miles. I have an exhaust
2007 Cat C15 Acert, 1.2 million miles. I have an exhaust gasket leaking and there is oil/wetness underneath the leaking exhaust port. Is this normal? It does not seem to use much oil, maybe 1 gallon e… read more
Curtis B.
Curtis B.
Retired service manager
Associate Degree
3,486 satisfied customers
Cat c15 acert SDP engine kenworth t 660 2011. It leaked
Cat c15 acert SDP engine kenworth t(###) ###-#### It leaked almost all oil n started to rattle. Now stopped in res area. N oil has leaked real bad from driver side oil was good in the morning b4 drivi… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
3,400 satisfied customers
2006 Cat C15 ACERT. 2 gallons of coolant in 365 miles. Oil
2006 Cat C15 ACERT. 2 gallons of coolant in 365 miles. Oil looks ok on the dip stick but this is on the front axle under the breather tube. Can't find any visible leaks on the coolant system. Any idea… read more
FIX-IT
FIX-IT
Comercial transport technician
Vocational, Technical or Trade Scho
829 satisfied customers
I have coolant blowing out my radiator cap. I've checked to
I have coolant blowing out my radiator cap. I've checked to make sure pump is working by the line going to top of reservoir. I put Blowby tube in bottle of water to see if it blew air and it did even … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,995 satisfied customers
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
Cat Engine Expert
Vocational, Technical or Trade Scho
9,995 satisfied customers
C15 losing 3 gallons aday oi; sample clean fuel sample good
c15 losing 3 gallons aday oi; sample clean fuel sample good water sample good! where is it going… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,995 satisfied customers
My 2007 c15 acert cat is burning oil. 1 gallon per 400 miles.
My 2007 c15 acert cat is burning oil. 1 gallon per 400 miles. No real smoke just the norm when you shift a little puff. Blow by is ok. We got low oil pressure light running it the other day we can't m… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,995 satisfied customers
Have a c15 2007 same deal fuel delivery is good will crank
Have a c15 2007 same deal fuel delivery is good will crank over just will not fire up owner drove truck to location shut it off did his farming and truck will not crank up now… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,995 satisfied customers
. 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
Cat Engine Expert
Vocational, Technical or Trade Scho
9,995 satisfied customers
Hello Sir. I have a cat c15 acert 475 590k miles on a pete
Hello Sir. I have a cat c15 acert 475 590k miles on a pete 379 car hauler of which I am in the middle of a "rebuild". I was very unimpressed by the massive blow by issue I have. I even enlisted your k… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,995 satisfied customers
2007 ISX 475/1650, 1,370,000 kms, CM870, over fuels to the
2007 ISX 475/1650, 1,370,000 kms, CM870, over fuels to the point where raw fuel is dripping out exhaust, lots of white smoke. Misses and backfires when applying throttle, runs rough on start up, smoot… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,458 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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