Medium and Heavy Trucks

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I have 1999. Kenworth T800 475 cat. 3406 E It's only making
I have 1999. Kenworth T800 475 cat. 3406 E It's only making about 15 psi boost - Low power - No codes in computer - I changed fuel filters and air filter and also checked air charge boots and tried to… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
203 satisfied customers
Have a 3406e. The fuel filter guage runs about 5 to 10
Have a 3406e. The fuel filter guage runs about 5 to 10 pounds bit lately it has been going up to 27 to 28 and the truck starts to spit and sputter like it is running out of fuel. Let it go back to an … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
Losing horsepower while going up small hills with an empty
losing horsepower while going up small hills with an empty trailer. Sounds like it's sputtering a bit during idle too. I have a freightliner with a detroit 60 series engine … read more
Curtis B.
Curtis B.
Retired service manager
Associate Degree
3,486 satisfied customers
ENGINE MISS-FIRE !! 2004 F650 V.I.N. 4V665219 Catapillar C-7
ENGINE MISS-FIRE !!2004 F650 V.I.N. 4V665219 Catapillar C-7 Ascert Engine # KAL08810 ECM # 25636120IE Engine Hours 3952COMPLAINT: Truck came to our shop with an intermittent miss on engine. The longer… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
I have a 2004 Kenworth T 800 with a Catapillar C 15 that was
Hi I have a 2004 Kenworth T 800 with a Catapillar C 15 that was recently just rebuilt about 1000 miles ago that fixed the major issues that we we're having. But we're still having an underlying issue … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
I have a c13 with fuel filter restriction issues. If i
I have a c13 with fuel filter restriction issues. If i replace the filters restriction dropped a week later same problem after sitting for a 36 hour reset (with no idling), replaced filters again. Had… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
I have an 03 KW T600 with a Cat engine. Our ELD recently
I have an 03 KW T600 with a Cat engine. Our ELD recently stopped reporting the odometer on this truck right at exactly 2,000,000.0 miles. I checked with the ELD provider and they do not stop at 2 mill… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
I have a c15 mbn single turbo with 1.4 million miles on it
I have a c15 mbn single turbo with 1.4 million miles on it that hasn't been touched. Original bearings, head has never been off. Injectors are original also except for #4 injector. It burns 1 gallon o… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
I have a cummins n14 plus 1995 mod rated at 400 hp. In a john Deere 8970 tractor It
Hi ,I have a cummins n14 plus 1995 mod rated at 400 hp. In a john Deere 8970 tractor It has clocked up 12800 hrs The fuelinjector pump was serviced at around 8000 hrs , I'm not sure about the injector… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
. Just rolled 1.1 million miles on my 475 hp acert in
Hello. Just rolled 1.1 million miles on my 475 hp acert in an 05 pete 379. I bought it at 570k miles from my dads rigging company in CA. It has been a VERY reliable engine for me. I have several ???s … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
Hi Cat Man I have a 04 C15 KCB single turbo in a W900 KW. 1.3 million on the odometer, a
Hi Cat Man I have a 04 C15 KCB single turbo in a W900 KW. 1.3 million on the odometer, a rebuild around 1 million, not sure if head was replaced at the same time or not. Truck began to leak coolant at… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
I have a year 2007 Kenworth T800 powered by a 475 acert. It
I have a year 2007 Kenworth T800 powered by a 475 acert. It has 1.2 million miles original on the engine. Aside from minor repairs it has never been overhauled. The catalytic converter mufflers are or… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
93 kw cat motor it idels fine but when you give it gas it spits
93 kw cat motor it idels fine but when you give it gas it spits and sputters we have changed fuel filters gave it an over head and changed injectors it did not fix it any ideals will help… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
hi,i bought my 2002 flate top pete in2009. 475 cat but previes
hi,i bought my 2002 flate top pete in2009. 475 cat but previes owner rebuilt motor from cat and thay tune up to 550 with 370 rear ends 275/8022.5 tires i drive 60mph fuel milege with pulling flatebed … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
I have an 2005 Kenworth with a 475 acert c15 twin turbo MXS
I have an 2005 Kenworth with a 475 acert c15 twin turbo MXS model. It has just over a million miles. I change my oil every 13,000 - 15,000.change fuel filters every 6,000 miles also.when I bought the … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
the kenworth has frozen, yes frozen in the lines 2 times now
the kenworth has frozen, yes frozen in the lines 2 times now first time was in the fuel tank and now today the lines are froze.. we have 3 new ones and all are down what is causing this problem… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
420 satisfied customers
Kenworth T600, Caterpillar C15 engine, turbos are surging,
Kenworth T600, Caterpillar C15 engine, turbos are surging, turbos whine heard and turbos accelerating and decelerating but engine speed stays relatively constant… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
I have a Kenworth 2006 T800 13spd auto with a cat C-15 475
I have a Kenworth 2006 T800 13spd auto with a cat C-15 475 hp and on odd occasion it just won't start or even turn over. But if you wait 15 to 45 minutes and try it again it fires right up. It's been … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
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