Medium and Heavy Trucks

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Related Medium and Heavy Trucks Questions
I have a C15 cat 05 peterbilt I've lost 5 to 8 lb of oil
I have a C15 cat 05 peterbilt I've lost 5 to 8 lb of oil pressure and can't find it put a new oil sending unit and tried to put a manual gauge to see if it was right can't find the right pass used to … read more
NicholasM1019
NicholasM1019
Diesel Technician
Vocational, Technical or Trade School
7 satisfied customers
I have a 2007 Peterbilt with a C15 Cat. Serial number
Hello, I have a 2007 Peterbilt with a C15 Cat. Serial number MXS98434. I have antifreeze in the oil and oil in the antifreeze. Do you have any suggestions of what my problem could be. New rebuild in F… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,240 satisfied customers
I have a 2003 379 c15 6nz. My oil tempos at 220 with a new
I have a 2003 379 c15 6nz. My oil tempos at 220 with a new teltek gauge and sensor. My water temp shows around 220-225 when working the motor is working hard. I thought it sounds high. Have new thermo… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,240 satisfied customers
How did I get water in oil on a cat 6nz. I have to go look
how did I get water in oil on a cat 6nz JA: What is the complete model and serial number of your machine? Customer: i have to go look it up give me a min JA: Are you fixing this yourself? What have yo… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,240 satisfied customers
Platinum I've over haul on mxs c15 and now has 30 psi of oil
Platinum I've over haul on mxs c15 and now has 30 psi of oil pressure at idle with coolent at 150 and and 50-55 cruising not pulling … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
Coolant line to the deverter valve keep on blowing out,when
coolant line to the deverter valve keep on blowing out,when dose the deverter come on @off … read more
Eddy
Eddy
HD Truck Tech
GED
2 satisfied customers
Cat man, 2002 international with C15 have to add some
Cat man, 2002 international with C15 have to add some coolant every so often , can not find external leaks. Engine oil is fine. Where else to check. Also, water drips off the blow by hose and it has m… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,240 satisfied customers
Cat man, 2004 peterbilt c13. Has water in the oil. What's
Good morning cat man, 2004 peterbilt c13. Has water in the oil. What's the best way to determine if it is the oil cooler. Also can the air compressor cause this problem? Thanks… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,240 satisfied customers
I have a cat c15 2007 year model that the upper coolant hose
i have a cat c15 2007 year model that the upper coolant hose is collapsing and we have now found oil in coolant im thinking oil cooler for the oil in cbut will that also cause the coolant hose to coll… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,240 satisfied customers
I have c15 2008 engine, 2008 w900 c15, i have a problem with
Good evening JA: Hello. How can we be of help? Customer: I have c15 2008 engine JA: What's the make/model/year of your truck? Engine type? Customer: 2008 w900 c15 JA: Are you fixing your truck yoursel… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,240 satisfied customers
Cat Man, I need to overhaul a cat c13 KCB78215. I have done
Hey Cat Man, I need to overhaul a cat c13 KCB78215. I have done a couple c15s with no trouble but this engine is a lot different. Why would the head be so full of carbon buildup when this engine doesn… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,240 satisfied customers
Hoping Cat Man can help here. I have a C-15 cat 6NZ. It had
Hi Hoping Cat Man can help here. I have a C-15 cat 6NZ. It had 800,000 KM on it and developed a miss and started pushing oil out of the breather tube. Tore the engine apart and found cyl.#3 was severe… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,240 satisfied customers
I have c15 cat engine it has too much conversation in the
I have c15 cat engine it has too much conversation in the valve cover comes out from the bleeder tube and I have rebuild it twice. I am loosing too much coolant but the oil level is good, truck runs g… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,240 satisfied customers
I have a 09 w900 with a cat c15 I have a oil leak looks like
I have a 09 w900 with a cat c15 I have a oil leak looks like around the oil cooler on right side of motor can't find it… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
420 satisfied customers
is there thing a guy should know about changing a oil cooler
is there thing a guy should know about changing a oil cooler on a c15 cat (who has never done one before )… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,240 satisfied customers
Got a recently overhauled Perkins 2500 genset engine (same
Got a recently overhauled Perkins 2500 genset engine (same as Cat C15) that started leaking oil between the spacer plate and the block. I'm currenlty overhauling another Perkins 2500 and liner protrus… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,240 satisfied customers
Have a 2007 Peterbilt with a Cat C15 Acert 475hp. Get engine
Have a 2007 Peterbilt with a Cat C15 Acert 475hp. Get engine oil in the radiator. No other fluids mixing anywhere, just getting oil into the cooling system. Replaced the oil cooler with a Reman form c… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,240 satisfied customers
Hi i got 03 peterbilt with cat c15 6nz serial number had oil
Hi i got 03 peterbilt with cat c15 6nz serial number had oil in coolant changed water pump and thermostat by than we saw oil cooler is dirty so i changed that to after 2 weeks i see again little oil i… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,240 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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