Medium and Heavy Trucks

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I have a cat that falls on its face once its under a load
i have a cat that falls on its face once its under a load they found turbo was bad replaced found injector orings were bad replaced and air to air had a hole each time somethings replaced it gets bett… read more
Cat Man
Cat Man
Cat Engine Expert
9,647 satisfied customers
Would you happen to have instructions on how to program the
Good afternoon sir would you happen to have instructions on how to program the trim codes on a 2012 cat c13.… read more
Cat Man
Cat Man
Cat Engine Expert
9,647 satisfied customers
I am having issues with my 2005 Sterling. It has a C7 cat
Hello there! I am having issues with my 2005 Sterling. It has a C7 cat engine. The issue I am having is that when I go to start it, it take a while for it to start. It tries to start as if it had ran … read more
Cat Man
Cat Man
Cat Engine Expert
9,647 satisfied customers
DR. Cummins, I have a ISX 79292815 that has the high exhaust
DR. Cummins, I have a ISX 79292815 that has the high exhaust temp light on when driving. I hooked up with insite. no codes and when I was driving I watched and its doing an active regen. my question i… read more
cumminsdr
cumminsdr
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High School or GED
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2001 fleetwood discovery 3126b cat ckm 05575 it smoke at
2001 fleetwood discovery 3126b cat ckm 05575 it white smoke at idle but will stop after u start driving it. The longer it idle the longer it will smoke on take off. Runs great on road. But using oil. … read more
Curtis B.
Curtis B.
Technician
Associate Degree
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Have a 3406e truck engine that intermittently runs rough, if
Have a 3406e truck engine that intermittently runs rough, if you lay into the throttle you can get over the stumble. … read more
Cat Man
Cat Man
Cat Engine Expert
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1998 3406e cat has gone through 3 turbos in the last 4
1998 3406e cat has gone through 3 turbos in the last 4 months. it happens when under load ( taking off from a stoplight ) loaded . and it keeps wiping out the bearings . good oil pressure . oil usuall… read more
Cat Man
Cat Man
Cat Engine Expert
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3406E sputters and smokes only after idling for a bit and at
3406E sputters and smokes only after idling for a bit and at low rpm clears up and runs fine going down the highway and doesn't do it every time sometimes going through towns when going sloe … read more
Cat Man
Cat Man
Cat Engine Expert
9,647 satisfied customers
CAT Man,, I'm the primary mechanic for the company I work
Hi CAT Man, my name is***** the primary mechanic for the company I work for. We have a 1998 Peterbilt with a CAT 3406e, serial number 1LW0XXXX. Currently, when we try to start the truck, it acts as if… read more
Cat Man
Cat Man
Cat Engine Expert
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I have a 2001 GMC C7500 with a Caterpillar 3126 engine. The
I have a 2001 GMC C7500 with a Caterpillar 3126 engine. The engine stalls going down the road and it sputters every so often with white smoke coming out of the exhaust. The truck runs fine while its i… read more
Cat Man
Cat Man
Cat Engine Expert
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I recently inframed a 3406e 2ws engine because of a scored
Hello, i recently inframed a 3406e 2ws engine because of a scored piston and liner. I believe this happened because of wrong trim codes. One injector must of been "hot".. i reset trim codes to 80%. En… read more
Cat Man
Cat Man
Cat Engine Expert
9,647 satisfied customers
Hi I have a 3406e that's sputtering and when it sputters it
Hi I have a 3406e that's sputtering and when it sputters it expels white smoke. It's had a recent inframe, new injectors that have recently been taken out sent off and tested with no issue found. New … read more
Cat Man
Cat Man
Cat Engine Expert
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I have a 99 Freightliner century that smokes heavily when Im
I have a 99 Freightliner century that smokes heavily when I'm shifting. No smoke at idle or going down the road. If I hit the throttle Heavy while shifting, it won't smoke. Any clues?… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
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I have a 2006 Freightliner with a 14 ltr Detroit 450hp. Upon
I have a 2006 Freightliner with a 14 ltr Detroit 450hp. Upon acceleration i am getting a miss with black smoke coming out the exhaust pipe. Cruising it is fine, as soon as you ask for power is starts … read more
Clayton
Clayton
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Vocational, Technical or Trade Scho
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Hello, question on my 2002 KW T2000 N14, Ive notice when idling
Hello, question on my 2002 KW T2000 N14, I've notice when idling some smoke coming out of exhaust pipe but you can see it or I can see it at night when Truck is under spot light nothing during the day… read more
spankyjr1
spankyjr1
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Vocational, Technical or Trade Scho
697 satisfied customers
I have a 2006 frtliner columbia with det series 60 w/egr and
I have a 2006 frtliner columbia with det series 60 w/egr and it keeps on blowing turbo to exhaust manifold gasket.… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,175 satisfied customers
I have a 94 kenworth t800 with 425HP 3406B cat. Serial prefix
I have a 94 kenworth t800 with 425HP 3406B cat. Serial prefix 3ZJ. I'm having a fueling or timing problem I believe. It has developed a miss and lost power. Has new nozzles . After idling for short ti… read more
Cat Man
Cat Man
Cat Engine Expert
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2007 Hino 258 Throttle unresponsive at times. It runs good,
2007 Hino 258 Throttle unresponsive at times. It runs good, no smoke, fuel mileage good. At times when at a stop, when you press the pedal to go, the engine does not respond. It simply does not respon… read more
diesel-tech
diesel-tech
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Meet the Experts:

Daniel Wilson

Daniel Wilson

3,175 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

9,647 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

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2,892 satisfied customers

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

Jeremy

Jeremy

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ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, EPA 608/609 HVAC Certified, Steering/Suspension and ABS/Brakes Technician

cumminsdr

cumminsdr

Mechanic

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All types of Cummins applications

Curtis B.

Curtis B.

Technician

991 satisfied customers

Technician turned service manager on multiple lines of trucks and engines, used in industry.

dieseldan55

dieseldan55

Contractor

74 satisfied customers

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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