Medium and Heavy Trucks

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I am working on 2 trucks that almost have a similar problem,
I am working on 2 trucks that almost have a similar problem, one is a gmc with a cat 3125 in it. It is hard to start and usually blows a lot of while smoke at start up and sometimes while driving. The… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,968 satisfied customers
I have a Freightliner semi with a Caterpillar C15 engine and
I have a Freightliner semi with a Caterpillar C15 engine and some technical answers please. … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
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Cat Man. I currently have a 2007 Pete 379 with a NXS acert.
Hi Cat Man. I currently have a 2007 Pete 379 with a NXS acert. It is a factory 475/1850 tune but last weekend I changed it to the 550/1850 brake saver tune and when I went out on the road I could tell… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
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I have a c13 ran perfect on the way from Miss. to Ga and 5
I have a c13 ran perfect on the way from Miss. to Ga and 5 miles from home stopped at the store. Pulled back on the road and truck would barely run and was smoking black out the exhaust like a tire on… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,968 satisfied customers
Have a Zo freedomline 12 speed automatic transmission
Have a Zo freedomline 12 speed automatic transmission leaking air out of the three holes on the side of transmission … read more
Daniel Wilson
Daniel Wilson
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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
9,968 satisfied customers
We have a 2005 Freightliner Columbia, we have had to xy
We have a 2005 Freightliner Columbia, we have had to xy shifter replaced and the wiring harness, the truck was getting up into high gears and then the gear the truck was in would flash on the dash and… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
420 satisfied customers
2006 Freightliner c13 cat oil pressure shot up to 75 going
2006 Freightliner c13 cat oil pressure shot up to 75 going down the road bout a week ago but it would come back to normal... back and forth.... now it's tryna read low bout 20 idling and 30 going down… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,968 satisfied customers
Cat c13 I need your help mr cat man on high RPM a lot of
Cat c13 I need your help mr cat man on high RPM a lot of smoke come out of the whole number 3 i replace lla six injectors I change the harness I tried 3 different ecm I put a new head and I still got … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,968 satisfied customers
My 2002, 2002 freightliner 60 series detroit, Nothing for
Nothing for the only problem it has right now which is it wont restart when its warmed up. 1st thing ice cold it starts fine a7 will restart again and again. After its warm if you turn it off to refuel it will not restart for 30 to 45 mins. But it all started a couple of days ago. About 5:00 pm I was finally fully loaded with cars and started heading out of Ocooe FL for Columbia SC when I hit the Interstate the engine wouldn't rev but to about 1300 rpm's and then die but not shut off it kept firing back up as soon as the rpm's dropped below 1300. It ran normal as long as the rpm's were under 1300. So after stopping to see if there was any thing I could see wrong and I didn"t , I drove from Ocoee FL to about the SC state line at 54 mph when it started to improve a little. By the time I got to Columbia it would run 65 mph a while then start to die and come back below 1300 rpm then get better again. At Columbia I refueled and added a gallon of lucus fuel treatment, and notice air bubbles raising from the bottom of both fuel tanks. when I tried to restart the engine it would not start for about 30 mins. it spun over real good just didn't start up. When it did start I never shut it off til I finished my run delivering cars and got home . After the refuel I slept with engine idling and it has never run better since. But now ever time I shut it off warmed up or even just after running 5 or 10 mins. it will not restart for about 30 mins. or so. … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
I have 1996 freightliner with Cummin M-11 yesterday I
Hi I have 1996 freightliner with Cummin M-11 yesterday I started to feel some shaking in 9th gear under 40 mph and 10 gear under. 60 mph… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
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Good afternoon .my freightliner columbia 2009 series 60
Good afternoon .my freightliner columbia 2009 series 60 .water separator have low level diesel before was a number 2 .it's a new fuel filter I would like to know that's normal ..or maybe that's the re… read more
Roy
Roy
shop foreman
Associate Degree
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Mr Cat Man, I have a cat C13 KCB27134 that we just completed
Mr Cat Man, I have a cat C13 KCB27134 that we just completed an inframe overhaul and camshaft replacement. Truck cranked with no problems several times after overhual. After truck sat overnight it wou… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
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have 2005 kenworth c13 and eaton 10 spd. between 1300 and
have 2005 kenworth c13 and eaton 10 spd. between 1300 and 1500 rpm loses power. rpm gauge bounces a bit between rpms. we put new injectors in, put a test ecm on, tested ohms on crank and cam sensor. w… read more
Cat Man
Cat Man
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Vocational, Technical or Trade Scho
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2001 freightliner century with Cummins N14 and 10 speed regular
2001 freightliner century with Cummins N14 and 10 speed regular shakes while accelerating it is mostly noticeable in the higher gears....what should I check?… read more
Andy
Andy
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Vocational, Technical or Trade School
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Hi I just purchased a 2005 peterbilt 387 with a c13 I bought
Hi I just purchased a 2005 peterbilt 387 with a c13 I bought it knowing it has possibly a blown head gasket or cracked head it is pressuring coolant tank with a little oil in it to but no water in the… read more
Cat Man
Cat Man
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Vocational, Technical or Trade Scho
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I have a 2000 Detroit diesel 60 in a 2003 freightliner. The
I have a 2000 Detroit diesel 60 in a 2003 freightliner. The truck has very low power in high range without a load-no misfire no smoke. Fuel psi at idle is 15, 35-45 midrange and maxes out at 70 psi ne… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
420 satisfied customers
I have an 03 Series 60 in a freightliner columbia. It has
I have an '03 Series 60 in a freightliner columbia. It has 985000 miles on it. Yesterday it started losing power on hills, small and large. It has an auto-shift tranny, and when shifting from 10th to … read more
Cat Man
Cat Man
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