Medium and Heavy Trucks

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Related Medium and Heavy Trucks Questions
I have a kenworth t800 c15 single turbo. it builds boost
it builds boost pressure but seems like it dumps it to fast after 26 psi truck wont speed up to 70. Its governed at 75 … read more
Nich1019
Nich1019
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Vocational, Technical or Trade School
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Need cat c15 injector trim files However the injectors do
Need cat c15 injector trim files However the injectors do not display the 12 digit number they ask… read more
Gary A.
Gary A.
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C15 accert hot rod trim code. Pete 2005 c15 accert cat. Hot
C15 accert hot rod trim code JA: What's the make/model/year of your truck? Engine type? Customer: Pete 2005 c15 accert cat JA: Are you fixing your truck yourself? What have you tried so far? Customer:… read more
Nich1019
Nich1019
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C15 acert precooler delete. K T2000 2007 C15 Acert. I want
C15 acert precooler delete JA: What's the make/model/year of your truck? Engine type? Customer: K T2000 2007 C15 Acert JA: Are you fixing your truck yourself? What have you tried so far? Customer: I w… read more
RyanY78
RyanY78
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C15 cat, boost sensor was replaced at cat dealership and
C15 cat, boost sensor was replaced at cat dealership and truck had 60 pounds of boost the day I picked it up, drove home cut truck off and the next day it wouldn?t get over 30 psi, every once in a whi… read more
Cat Man
Cat Man
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Vocational, Technical or Trade Scho
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2004 cat acert c15 Diesel engine over heats only when boost
2004 cat acert c15 Diesel engine over heats only when boost pressure reaches over 30 psi with light loads and 17 psi with heavy loads. No coolant loss or oil. Compression is good on all cylinders. Wil… read more
Cat Man
Cat Man
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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
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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
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Ever since I had my c15 accert overhauled and added cats
Ever since I had my c15 accert overhauled and added cats heavy haul tune I can only get 40 psi of boost at best and it use to run 50 + I had it dynoed we got 442 to the ground after new fuel pump and … read more
Kent Van Wagner
Kent Van Wagner
40 satisfied customers
Cat c15 has no boost and height exhaust temp. Turbos are
Cat c15 has no boost and height exhaust temp. Turbos are both good and there are no leaks when a pressure test is done. … read more
Cat Man
Cat Man
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I have a c15 mbn bridge motor, what can I do to get better
Hi I have a c15 mbn bridge motor, what can I do to get better fuel mileage … read more
Kent Van Wagner
Kent Van Wagner
40 satisfied customers
Cat Man, I have a 3406 3ZJ54893 that pulls strong until
Cat Man, I have a 3406 3ZJ54893 that pulls strong until about 1600-1700 rpms then just slowly pulls to 2000 rpm. We changed the fuel filters but that didn't change anything. Where should I go next? Al… read more
Cat Man
Cat Man
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Hay cat man I have a 04 freightliner columbia with a c15.it
Hay cat man I have a 04 freightliner columbia with a c15.it currently gets 4.5 miles to the gallon.im wondering if I change the stock ecm to a Pittsburgh power ecm if it will help with bringing up my … read more
Cat Man
Cat Man
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Vocational, Technical or Trade Scho
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Hey Cat Man i have a 1LW and im not building boost pressure
Hey Cat Man i have a 1LW and im not building boost pressure . There is an actuator on the bottom of the turbo what is it and how does it operate?… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
I have a 05 625 cat accert and having low power issues. We
I have a 05 625 cat accert and having low power issues. We had a ECM writer program the ECM for performance. We've installed a fass system and per the ecm writer backed the vva's of a full turn. I'm b… read more
Cat Man
Cat Man
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Vocational, Technical or Trade Scho
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Freightliner XL Chassic: I have a 2006 C- 15 Cat engine and
I have a 2006 C- 15 Cat engine and only getting 4.3 mpg. Please help me get 6 or 6.5 mpg please.… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
Kenworth T600, Caterpillar C15 engine, turbos are surging,
Kenworth T600, Caterpillar C15 engine, turbos are surging, turbos whine heard and turbos accelerating and decelerating but engine speed stays relatively constant… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
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
10,344 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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