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Related Medium and Heavy Trucks Questions
A cat c12 that use excessive fuel, and black smoke a lot
Hey have a cat c12 that use excessive fuel, and black smoke a lot with load … read more
Nich1019
Nich1019
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Vocational, Technical or Trade School
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I have a freighliner m2 06 with a cat engine c7. i think the
i have a freighliner m2 06 with a cat engine c7. i think the engine oil is leaking into the diesel. i have no idea how. but the diesel gets real dirty and the fuel filters need to be changed every 2 o… read more
catmastertech
catmastertech
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Vocational, Technical or Trade Scho
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I have a 3126 cat with a surge at idle engine serial number
i have a 3126 cat with a surge at idle engine serial number is ***** filters are all new idle air control sensor is new idle air control valve is new … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
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C7 cat won't start after sitting for two 2 or more days. 2
C7 cat won't start after sitting for two 2 or more days … read more
Daniel Wilson
Daniel Wilson
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Looking to re rate my cat c7 in my 2005 Ford f650. I've seen
looking to re rate my cat c7 in my 2005 Ford f650. I've seen in info on rerate families. How do I identify what relate family my engine is in? … read more
Wayne
Wayne
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This dusty I have c7 cat that surges really bad when it gets
This dusty I have c7 cat that surges really bad when it gets out of the cold mode. But there is noticeable surging when it is cold when speed it up. I replaced all the injectors they were leaking oil … read more
Cat Man
Cat Man
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I have a truck that had a military c7(370hp) installed into
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Daniel Wilson
Daniel Wilson
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Crank no start fault in all six injector error codes. 2004
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Cat Man
Cat Man
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M11 celect 1993 freightliner crank no start. Fuel going into
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Daniel Wilson
Daniel Wilson
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I have a 2007 Freightliner M2 with a Cat C7. I purchased a
I have a 2007 Freightliner M2 with a blown Cat C7. I purchased a 2006 C7 out of a school bus. What do I need to do to make this engine work? … read more
Daniel Wilson
Daniel Wilson
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ISUZU 2003 FRR Intermittent, Miisssing, Skipping ,Spitting,
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Daniel Wilson
Daniel Wilson
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Bud. I have a 210hp c7 kal engine in a ford truck and want
Hey bud. I have a 210hp c7 kal engine in a ford truck and want to overhaul it but would like to get 300hp out of it I know pistons, injectors, turbo are different along with calibration. What all do n… read more
Cat Man
Cat Man
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I have a cat C7 acert ser#WAX57321. runs fine till transfers
i have a cat C7 acert ser#WAX57321. runs fine till transfers out of cold mode. replaced fuel filter, inspected for fuel suction leak, checked huie pressure, had a previous code of low fuel pressure du… read more
Cat Man
Cat Man
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Vocational, Technical or Trade Scho
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have a 2008 f650 with cat engine. installed rail injection
have a 2008 f650 with cat engine. installed rail injection pump and fuel tubes and truck wont start. i have fuel getting to the high pressure pump but the high pressure pump is not pushing it the rest… read more
Cat Man
Cat Man
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I swapped out a c7 serial # ***** and installed a 3126 serial
I swapped out a c7 serial # ***** and installed a 3126 serial # ***** I put all the c7 sensors on the 3126 (plugged right in). the truck turns over but wont fire/start. any suggestions?… read more
Cat Man
Cat Man
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I am purchasing a 2006 safari motorhome with a Cat. c7 350
I am purchasing a 2006 safari motorhome with a Cat. c7 350 hp engine 13,000 miles. engine s/n ********** I have read that these engines may have poor fuel pumps that fail and take out the injectors al… read more
Cat Man
Cat Man
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Hi !!!!My friend, I have a technical question for you. I
Hi !!!!My friend, I have a technical question for you. I am looking to buy c7. I have 2 models 1: fmm13113(###) ###-####24 volt. 2nd. c7 kal. 12 volt All parts are compatible you there.… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
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I have a freightliner m2. C7. 300hp. It shows code 6H 164.
I have a freightliner m2. C7. 300hp. It shows code 6H 164. 51d 020 fail 07 can you help.... also should this truck have alot of blow by… read more
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Cat Man
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10,344 satisfied customers
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Chris (aka-Moose)

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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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