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
Vocational, Technical or Trade Scho
9,688 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
Vocational, Technical or Trade Scho
9,688 satisfied customers
I have a 2016 glider with pre 2000 N14. Eng # 11828333 465
I have a 2016 glider with pre 2000 N14. Eng # 11828333 465 hp. Driver complaint that is "studders" when he upshifts in high range. at 1150 rpm to 1400. Once he gets past that it clears up. It will do … read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,351 satisfied customers
Have 1994 gmc topkick with 3116 cat motor skips under
have 1994 gmc topkick with 3116 cat motor skips under load,done fuel filter ,cleaned screen in fuel inlet to pump still skips no black smoke or white smoke getting worst… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,688 satisfied customers
I am in need specs and overhead clearances cat engine I'm
Hello again I am in need for tourqe specs and overhead clearances for a cat engine I'm having a hard time finding serial #it is an 3406 a model it's in a 86 international truck… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,688 satisfied customers
Morning. I have a Cat 3406B that i did an inframe on. Engine
Morning. I have a Cat 3406B that i did an inframe on. Engine runs fine, pulls good, doesnt use any fluids. The problem I am having is when using the jake. Jakes were not rebuilt at the time of inframe… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,688 satisfied customers
cat 257b had fuel tank wire brushed cleaned out and some other
cat 257b had fuel tank wire brushed cleaned out and some other things redone a few months ago when vehicle started losing power. smoking sputtering especially when under a load. go it back ran fine fo… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,286 satisfied customers
2006 Pete with CAT C7. Truck has a fresh rebuild less than
2006 Pete with CAT C7. Truck has a fresh rebuild less than 200 hr ago. Truck was driving and had a sudden loss of power and they had trouble getting it up to 15 mph, (OF COURSE THAT IS WHAT MY DRIVER … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,688 satisfied customers
I have a 1995 GMC top kick with a 3116 Cat 215hp (170,000 miles)
I have a 1995 GMC top kick with a 3116 Cat 215hp (170,000 miles) that started blowing white smoke real bad even when warmed up, but doesn't seem to be miss firing at all and the turbo looks fine. The … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,688 satisfied customers
First time starting my truck in the morning it blows clouds
First time starting my truck in the morning it blows clouds of white smoke. After it warms to almost the halfway mark smoke turns to blue. If I turn the truck off and reset the ecu by switching from t… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,688 satisfied customers
I have a c 12 cat serial number 9ns I change injector 5 with
I have a c 12 cat serial number 9ns I change injector 5 with what I thought to be a rebuild injector but was wrong injector I ran it smoked like a rolling coal machine change injector to right one the… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,688 satisfied customers
2007 c7 330 hp runs fine however after sitting for 48 hours
2007 c7 330 hp runs fine, however, after sitting for 48 hours and i do a cold start it misses and blows white smoke for 10-15 secs. No codes, replaced fuel filters, installed FASS fuel system , replac… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,688 satisfied customers
Im working on a c7 in a truck. I have 1740psi injection actuation
Im working on a c7 in a truck. I have 1740psi injection actuation pressure at idle. have changed huei pump, iap sensor, injectors, and ecm. fuel pressure is 60 at idle. truck misses bad below 2000rpm.… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,688 satisfied customers
06 387 peterbilt with a 475 acert caterpillar. blue-ish white
06 387 peterbilt with a 475 acert caterpillar. blue-ish white smoke comes the exhaust on startup. There is a slight miss or skip until u press the accelerator. There is no apparent loss of power and t… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,688 satisfied customers
Hey Cat Man still need help on the 4MG. I replaced the injection
Hey Cat Man still need help on the 4MG. I replaced the injection pump with a used one and ive got a miss on two cylinders. 1 and 6. They seem to be firing somewhat because if we crack a line open the … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,688 satisfied customers
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
Technician
Vocational, Technical or Trade Scho
625 satisfied customers
98 m11. idles fine, but at 1100 rpm starts to miss. smoothes
98 m11. idles fine, but at 1100 rpm starts to miss. smoothes out at around 1800 rpm. Knocks hard if you hit the pedal quick. No smoke out the exhaust. Replaced cam sensor (connections were coated with… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,351 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
Vocational, Technical or Trade Scho
9,688 satisfied customers
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