Medium and Heavy Trucks

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I'm having a fuel problem on a cat d6k with the 6.6 motor.
Hi I'm having a fuel problem on a cat d6k with the 6.6 motor. It happened over night. The motor starts bog down and it derates the power. It is throwing the fault codes for the injectors not respondin… read more
cat_engines_only
cat_engines_only
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Vocational, Technical or Trade Scho
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I HAVE 2008 FRIEGHTLINER COLUMBIA with detriot 60 series
I HAVE 2008 FRIEGHTLINER COLUMBIA with detriot 60 series motor. My truck heatup and after 5 to 10 mints its came at normal like its goes more than 220 and then came back at normal after 5 to mints. Wh… read more
Roy
Roy
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6.71 won't idle rack has been run no sticking injectors used
6.71 won't idle rack has been run no sticking injectors used n55 injectors won't idle … read more
Curtis B.
Curtis B.
Retired service manager
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I have C7 in a 2007 [email protected] freightliner. It starts and idles
I have C7 in a 2007 [email protected] freightliner. It starts and idles good. No ck engine lights, no codes. when you accelerate it stumbles, if you drive it and it gets in the stumble it will white smoke and skip, … read more
Cat Man
Cat Man
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Vocational, Technical or Trade Scho
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I have a Kubota L3240. while running it last week I think I
I have a Kubota L3240. while running it last week I think I ran it out of fuel. The fuel gauge still said I had 1/4 tank but when It started running rough and sputtering I checked the tank and could s… read more
Daniel Wilson
Daniel Wilson
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I have a 2007 Freightliner M2 106 with a 7.2L. When cold it
I have a 2007 Freightliner M2 106 with a 7.2L. When cold it runs fine until it hits 150 degrees. It then misses bad until it warms up to 190-200 degrees. … read more
Cat Man
Cat Man
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Vocational, Technical or Trade Scho
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I have an FH 550HP Volvo and its cuts out whilst driving. It
i have an FH 550HP Volvo and its cuts out whilst driving. It restarts after i bleed the fuel system. I have replaced both pumps & all filters . It is also hard to start but when i prime the fuel syste… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
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Have an 07 Freightliner VIN#1FUJALCK57LY17905,,, it decided
have an 07 Freightliner VIN#1FUJALCK57LY17905,,, it decided one morning not to start, primed system with a 382 fuel processor filter with the clear bowl on top, a little snort of either and it runs bu… read more
Daniel Wilson
Daniel Wilson
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I have a C15 twin turbo. Blew top radiator hose fixed that.
I have a C15 twin turbo. Blew top radiator hose fixed that. 2 days later my coolant reservoir sprung a leak and I fixed that Saturday. Left back out on Monday and I noticed the weep hole on the water … read more
FIX-IT
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2004 Cat c7 in a Kenworth truck towed in for repair, runs
2004 Cat c7 in a Kenworth truck towed in for repair, runs great and pulls hard as its warming up until it hits about 140f, then starts missing and has no power at any speed over about 1200 rpm. Also l… read more
Cat Man
Cat Man
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Vocational, Technical or Trade Scho
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If my heui pump on my cat c7 has a light paste of metal
If my heui pump on my cat c7 has a light paste of metal shavings is it absolutely necessary to replace all 6 injectors along with heui pump … read more
Aaron Evans
Aaron Evans
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I have just purchased a used 2002 built bus w/ a cat motor.
i have just purchased a used 2002 thomas built bus w/ a cat motor. it dies when it gets up to full operating temp and then it will restart once it cools down a bit. my mechanic put a gauge on the heui… read more
FIX-IT
FIX-IT
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Vocational, Technical or Trade Scho
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Looking for the "CAT MAN" We have a driver here with a c15
Looking for the "CAT MAN" We have a driver here with a c15 accert. He singled out the turbos a while back and has had a bunch of work done to it. Its pushing out around 900H.P. This was all done a few… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
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Jeremy,well i'm sadly needing to pick your brain hopefully
Hi Jeremy, well i'm sadly needing to pick your brain hopefully just one more time on the oil temp issue with my 2002 freightliner columbia...12.7LDetroit We are back up to a steady 250 deg on flat gro… read more
Jeremy
Jeremy
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Associate Degree
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I have a CAT 3126B. I had a no start issue where it would turn
I have a CAT 3126B. I had a no start issue where it would turn over but not fire up. I had 0 PSI on the dash oil pressure guage so I ended up replacing the oil filter and swapped in a salvage oil pump… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
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c13 reman head radiator redone new waterpump newthermostat
c13 reman head radiator redone new waterpump newthermostat and housing newtemp sending unit pulled oil cooler checked for blockage ok fan starts at 217 stops at 208 thats not correct but with fan on c… read more
Cat Man
Cat Man
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Vocational, Technical or Trade Scho
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I have a Pete 387 cat 435 c15 with 608000 miles my oil temp
I have a Pete 387 cat 435 c15 with 608000 miles my oil temp gauge is running 210/220 with fan running my hoses running across valve cover is melting what is causing this to happen… read more
Cat Man
Cat Man
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Vocational, Technical or Trade Scho
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I have a 1999 Sterling L9511 tandem dump truck 10spd with a
I have a 1999 Sterling L9511 tandem dump truck 10spd with a M-11 with 200,000 miles. I'm the only driver who treats it easy. I am getting a 321 fault code. Intake pressure fault. The turbo spools up t… read more
Wayne
Wayne
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Vocational, Technical or Trade Scho
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Meet the Experts:

Daniel Wilson

Daniel Wilson

3,632 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

4,965 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

3,400 satisfied customers

worked on, Gmc, Macks, Freight liner,Mercedes Benz,,Ford, sterling

Jeremy

Jeremy

Certified Truck/Bus Technician

2,672 satisfied customers

ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, Network Engineer specializing in CAN faults, Aftertertreatment, and vehicle communications

cumminsdr

cumminsdr

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Chris (aka-Moose)

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dieseldan55

Contractor

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Road Service mechanic for Volvo Construction.

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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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