Medium and Heavy Trucks

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Related Medium and Heavy Trucks Questions
I have a 2004 c15 Acert that only builds 12 pounds of boost.
I have a 2004 c15 Acert that only builds 12 pounds of boost … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,244 satisfied customers
I have a 2006 Peterbilt 387 Cat C15. The AC is throwing hot
I have a 2006 Peterbilt 387 Cat C15. The AC is throwing hot air. I checked and the AC hose is frozen. Should I close the heat valves? There's 4 of them I think … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
Truck is over heating only on the uphill climb radiator and
Truck is over heating only on the uphill climb radiator and thermostat are not the issue they were replaced over a year ago with no change with issue. Good compression no oil or coolant loss at all … read more
Edward Haniewski
Edward Haniewski
General Studies/Automotive
1 satisfied customers
I have 2007 peterbuilt model 379 with cat c15 twin turbo
I have 2007 peterbuilt model 379 with cat c15 twin turbo nxs, exhaust goes high up to 1200 … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,244 satisfied customers
Can you put acert water pump on single turbo c15. Cat
2001 Pete 379. Wondering if acert high volume pump would better cool my non acert cat… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,244 satisfied customers
I'm experiencing low boost of 15 to 20 psi on FOT heavy
I'm experiencing low boost of 15 to 20 psi on FOT heavy loaded and speratic power loss.. … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,244 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
10,244 satisfied customers
Catman peterbilt with c15 acert. MXS why is my engine fan
catman peterbilt with c15 acert. MXS why is my engine fan always running.. i have CAT ET. what/how do i check ?… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,244 satisfied customers
I have a 2004 C-15 Acert Single turbo conversion Peterbilt
I have a 2004 C-15 Acert Single turbo conversion Peterbilt 379. Recently I have been getting a vibration in the truck. It is most prevalent under load and in gears 16th to 18th. Engine runs rough at R… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,244 satisfied customers
Started truck this morning. It died due to low coolant.
Started truck this morning. It died due to low coolant. Added coolant and it won't restart. Just clicks. Before it dies, it sounded louder than usual … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,244 satisfied customers
I have a C15 Acert MXS that has low power, low boost and
I have a C15 Acert MXS that has low power, low boost and high egt. Seems to get worse the longer the truck runs. Truck has been to a Peterbilt dealer and can't find any boost leak.… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,244 satisfied customers
I have a 2009 peterbilt 386 with a cat c-15 adem a4 /cert
I have a 2009 peterbilt 386 with a cat c-15 adem a4 /cert epa07 engine that when pulling a heavy load around 75,000 to 80,000 lbs that the coolant seems to blow out of coolant reservoir when under a h… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,244 satisfied customers
C15 cat in 2005 international run hot at 210deg and hoter
c15 cat in 2005 international run hot at 210deg and hoter when in a pull fan will not come on until it gets to 220 de … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,244 satisfied customers
We have an 07 pete with c15 acert its pushing antifreeze out
we have an 07 pete with c15 acert its pushing antifreeze out the overflow but only when the turbo boost is above 40 lbs head and head gasket has ben replaced cat has put it on dyno and nobody can find… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,244 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
10,244 satisfied customers
2004 Peterbilt w/C15 Acert (BXS) Okay i finally got fan
2004 Peterbilt w/C15 Acert (BXS) Okay i finally got fan situation figured out and it now cycles on @ 217 and off @206 like it should. BUT now when it gets hot (230 i believe) the buzzer comes on and "… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,244 satisfied customers
I have a bxs cat c15 which has psi in coolant res under load.
I have a bxs cat c15 which has psi in coolant res under load. I have replaced air compressor, water pump, thermostats, some hoses. Psi checked the system and dose not leak down. My drivers aids it has… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,244 satisfied customers
Hello, What's the best way to break in a new c15 engine? Do
Hello, What's the best way to break in a new c15 engine? Do I use any special oil ? Thanks… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,244 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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