Medium and Heavy Trucks

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Related Medium and Heavy Trucks Questions
Getting Fuel in the oil on a 2007 C7. Runs great. It is a
Working it myself so far. Have just changed the oil because it was a little thin. If it is just o-rings I will do it. If it is something else like a HUEI or changing the injectors I will take it in. No diagnostic tools. … read more
Steven
Steven
Triage Tech/Shop Foreman
Associates
185 satisfied customers
I have a C7 that is getting fuel in the oil. Ser# wax19268,
I have a C7 that is getting fuel in the oil. Ser# ***** it has about 150,000 miles and 14,000 hrs. The HEUI pump was replaced around 6,000 hours along with all brand new (not reman) injectors. So far … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
3,400 satisfied customers
Oil and fuel coming out blow by will only start when cold
Oil and fuel coming out blow by will only start when cold when warm you need starting fluid … read more
Edward Haniewski
Edward Haniewski
General Studies/Automotive
1 satisfied customers
I'm with the US military deployed overseas. I have a CAT C7
I'm with the US military deployed overseas. I have a CAT C7 Acert whoes oil pressure goes above 200psi. Any ideas as to what would cause this? … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
I am working on a c13 acert cat, SN- KCB00888. I am
I am working on a c13 acert cat, SN- KCB00888. I am replacing injector cups in this engine. The new cups have oring grooves but the old ones did not. Is there an updated cup design for this engine? Th… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
I have fuel going into my oil, wax27334 caterpillar 3126 c7
yes we pulled the injectors and changed the o rings … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
I have a 2007 M2 with a Cat C7 ser# WAX56746 with 286000
I have a 2007 M2 with a Cat C7 ser# ***** with 286000 miles. It is using 1qt of oil every 100 miles and the fuel in the fuel filter I replaced is dark with oil. The local Cat shop performed a diagnost… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
Caterpillar C7 ACERT in a 2005 Freightliner M2. Engine was
Caterpillar C7 ACERT in a 2005 Freightliner M2. Engine was using oil and low on power. Owner wanted new engine. Removed engine and installed reman long block. Had to transfer oil pan and main oil pump… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
I a 2006 GMC C8500 with a Caterpillar C7 Acert. The engine
Hi I a 2006 GMC C8500 with a Caterpillar C7 Acert. The engine is blowing engine oil out of the crankcase vent under load over 1500 RPM. The engine runs fine and smooth, no trouble codes, no smoke out … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
Recently replaced HUIE pump and 2005 Cat C7 now we are
Recently replaced HUIE pump and 2005 Cat C7 now we are getting fuel in the radiator, can it be coming from the HUIE pump??… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
I have c7 cat and it has a irrAric injection actuation
I have c7 cat and it has a irrAric injection actuation signal changed the sensor and the pump doing the same thing… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
We have a caterpillar c7 acert engine. Has no power. Code coming
We have a caterpillar c7 acert engine. Has no power. Code coming up in snap on prolink says its has code PID 259. What does that code mean? Originally towed in because of an oil leak. There was an o-r… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
I have a cat c7 2003 with 235,000 Miles.it uses a gallon of
I have a cat c7 2003 with 235,000 Miles.it uses a gallon of oil about every 300 miles all of the oil is going into the fuel system.the shop wants to replace all 6 injectors.the truck builds air in the… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
C7 engine leaks oil out of the exhaust. Changed the turbo
C7 engine leaks oil out of the exhaust. Changed the turbo twice, and changed the cylinder head. It still leaks while running. Now there is oil in the air cooler and intake.… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
i have a c7 in a gmc steak truck uses oil done cyl cut out
i have a c7 in a gmc steak truck uses oil done cyl cut out test and injector cut out test all passed doesn't smoke runs great but uses oil no leaks anywhere… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
i have a cat c7 engine in a gmc dump truck orignal concern
i have a cat c7 engine in a gmc dump truck orignal concern was fuel in the coolant i replaced injector cups as well as all injector and orings had pcm programmed truck runs great but now has lare oil … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
Hello, I have a 2005 Freightliner M2 106 Business Class. It
Hello, I have a 2005 Freightliner M2 106 Business Class. It is 10 wheeler dump truck with a CAT C7 ACERT engine, hooked up to eaton fuller 18 speed. The motor is doesn't have any power to pull a trail… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
OK ON SAME ENGINE I HAVE REPLACED ALL SIX INJECTOR ORINGS ,INJECTOR
OK ON SAME ENGINE I HAVE REPLACED ALL SIX INJECTOR ORINGS ,INJECTOR ACCUATOR SENSOR AND I HAVE REPLACED HUEY PUMP BUT ENGINE IS STILL RUNNING ROUGH AND SMELLS LIKE BURNING RAWL FUEL AND LOOKS LIKE FUE… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
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