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We have a 2008 peterbilt with a C15 in it. Customer brought
Hi we have a 2008 peterbilt with a C15 in it. Customer brought it in because diesel is getting into the oil. We did some troubleshooting even put dye in the fuel system. It seemed like all vdaup … read more
BrentR718
BrentR718
12 satisfied customers
I have a c15 cat 6nz I'm getting back pressure at the
I have a c15 cat 6nz I'm getting back pressure at the coolant reservoir tank … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,291 satisfied customers
CATMAN C7 fuel in oil.. possible injector they all test good
CATMAN C7 fuel in oil.. possible injector they all test good but i know that doesnt matter so what/ how can i do to see where this fuel is coming from… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,291 satisfied customers
Catman eng sn 6NZ48651 I am trying to wire in a low coolant
catman eng sn 6NZ48651 I am trying to wire in a low coolant level sensor. I have the following pins on the oem plug. 2,49,54 and 5 for common. the options to set up in services is 4 pin or off. so I c… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,291 satisfied customers
Catman I have eng sn SDP04125 it is not producing heat in
catman I have eng sn SDP04125 it is not producing heat in the cab. Engine is at operating temp around 200F. I disconnected in line to cab heater core coolant pumps out of line from engine. I then disc… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,291 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
10,291 satisfied customers
Catman eng sn SDP04125 it seems to be running hot. the
catman eng sn SDP04125 it seems to be running hot. the radiator is fairly new. Friday truck was running normal today bobtail it went straight to 200 F. Then loaded it was between 200 and 210. Driver t… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,291 satisfied customers
Catman on eng sn SDP04125 the jakes are weak. there isn't
catman on eng sn SDP04125 the jakes are weak. there isn't much or any difference between stage 2 and 3. Which bank is stage 1,2,3?… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,291 satisfied customers
Ok i need facts kcb c13 pre cooler busted twice oil cooler
Ok i need facts kcb c13 pre cooler busted twice oil cooler water pump leaking from weep hole and multiple hoses busting all happening a week apart. Customer got tired of spending money so he took it t… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,291 satisfied customers
Catman i have a peterbuiltwith at c15 engine and i have a
Hello catman i have a peterbuilt(###) ###-####with at c15 engine and i have a problem that the fuel tanks were filled with water the fuel has a white color, the truck is rouhg idling to the point that… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,291 satisfied customers
Catman I have Eng sn MXS44287. the driver said it has used 5
catman I have Eng sn MXS44287. the driver said it has used 5 gal of oil in a day 500 miles. it started suddenly. He said the oil is coming out the blow by. I just put a jug of water under the blow by … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,291 satisfied customers
Catman, I asked you a question a few weeks ago regarding
Hey there catman, I asked you a question a few weeks ago regarding a “crank but no start” problem on a cat C15. It seems to be happening again. The truck in question is a 2007 peterbilt 379 (674827) c… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,291 satisfied customers
catman I have eng sn SPD04125 it appears to be pushing coolant.
catman I have eng sn SPD04125 it appears to be pushing coolant. I blocked off the air compressor and the pre cooler. It still built pressure if it ran for maybe two minutes. So I pulled the overhead a… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,291 satisfied customers
catman I have eng sn SPD04125 it appears to be pushing coolant.
catman I have eng sn SPD04125 it appears to be pushing coolant. Initially the surge tank pressure relief was plugged so I cleaned that out and it works fine now. I just checked the reserve tank and it… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,291 satisfied customers
Hi Ive got a cat c15 6nz 28000 hrs , been great , just started
Hi I've got a cat c15 6nz 28000 hrs , been great , just started to be slower to start and a bit of pressure through to rad causing the rad to over flow , the coolant is agitated with air or combustion… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
5,454 satisfied customers
Cat Man - Hope youre staying warm. I have a bunch of engines
Cat Man - Hope you're staying warm. I have a bunch of engines I need exhaust flow rate, exhaust temperature, DPM emission rate and maximum allowable backpressure. They are: Model Serial# 6.6 66604755 … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,291 satisfied customers
I have a 2003 freightliner with a cat c15 in it it seems to
I have a 2003 freightliner with a cat c15 in it it seems to go thru about 2 gallons of antifreeze a week in the winter but uses none in the summer. We have pressure tested the cooling system and it se… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,291 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
Cat Engine Expert
Vocational, Technical or Trade Scho
10,291 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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