Medium and Heavy Trucks

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I bought a 1981 Kenworth w900a model to restore, it has a
Hi, I bought a 1981 Kenworth w900a model to restore, it has a cat 3406 DITA # 92U42994, it does not have a designation ( A or B model, just DITA ) so tried to start it and it ran away wild RPM's then … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,114 satisfied customers
After oil change on my 3406 cat mold, I away leave my oil
after oil change on my 3406 cat mold, I away leave my oil filter lose so I can make sure my water cooler is working ok, but this time there is no oil coming out, can you please help me. thank you sir.… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,114 satisfied customers
I had a injector go bad last week had to run engine 200
I had a injector go bad last week had to run engine 200 miles to cat to purchase a injector on way there the fuel was just dumping in cylinder when I got to cat I had accessive blowby shut engine off … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,114 satisfied customers
I have a 96 aeromax with a 3406 cat two weeks ago while
I have a 96 aeromax with a 3406 cat two weeks ago while driving the truck lost all power and died started right back up and ran fine for a few minutes then did it again but this time I pump the fuel p… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,114 satisfied customers
I have a 3406 E CAT engine. It runs good but after a couple
I have a 3406 E CAT engine. It runs good but after a couple hours it will shut down while its idling… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,114 satisfied customers
1986 KENWORTH T600 WITH 3406 CAT ENGINE. Was fine, sat for a
1986 KENWORTH T600 WITH 3406 CAT ENGINE. Was fine, sat for a while and now has to be primed to start and once it does it revs up rapidly to 2400 rpm. Accelerator pedal has no effect. Have to control b… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,299 satisfied customers
Trying to find a place online that i can input my engine
trying to find a place online that i can input my engine serial number to see if im exempt from teh eld mandate … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,114 satisfied customers
My 99 cat 3406 shuts down wiht little WARNING, hard shut
My 99 cat 3406 shuts down wiht little WARNING, hard shut duown the stop engine light comes on and less than 30 seconds it shuts down, it willl restart again but just shuts down again has plenty of wat… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,114 satisfied customers
3406 cat engine in 379 peterbilt needs rebuilt. was
3406 cat engine in 379 peterbilt needs rebuilt. was wondering if anyone can help me figure out which one i have because it does not appear to be the arriginal engine and all the plates are not on the … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
3,693 satisfied customers
, we 't have the sticker on the engine of our Tractor
we don't have the sticker on the engine of our Tractor Unit with a 1996 Cat 3406 Engine. The truck is a 1997 Kenworth T800 Heavy haul. I do see an AR number(###) ###-#### … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,114 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
5,114 satisfied customers
I'm trying to figure out how to adjust Jake brake on a 89
I'm trying to figure out how to adjust Jake brake on a 89 model peterbilt with a 3406 b cat engine. Jake works , just doesn't slow the truck down any… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,114 satisfied customers
I just bought a used 3406 c cat, in a kw but i noticed that
I just bought a used 3406 c cat, in a kw but i noticed that while I am pulling empty or load the truck is runing hot at 190 200 deg, but it comes down to 180 but as soon as I start pulling it goes up … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,114 satisfied customers
HI Dan I have a 3406 Cat in my commercial fishing boat in
HI Dan I have a 3406 Cat in my commercial fishing boat in Bristol Bay. The Cat mechanic is too busy to be bothered with small jobs such as changing injectors. I have bought my own injectors and was wo… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,114 satisfied customers
we have a 1997 357 Peterbilt 30 Ton Manitex BoomTruck with
we have a 1997 357 Peterbilt 30 Ton Manitex BoomTruck with a 3406 Cat 470 HP engine, we have a problem with the truck, that when we engage the PTO and goes on the back by the controls to operate the b… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,114 satisfied customers
ON A TRIP TO Utah TRUCK WAS STARTING AND RUNNING FINE. I SLEPT
ON A TRIP TO Utah TRUCK WAS STARTING AND RUNNING FINE. I SLEPT IN WALLCOTT, IOWA. WHEN I TRIED TO START THE TRUCK IT HAD TO CRANK A LONG TIME. I THOUGHT IT MIGHT BE THE COLD WEATHER. WHEN I GOT INTO O… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,114 satisfied customers
Cat Man - Hope youre staying warm. I have a bunch of engines
Cat Man - Hope you're staying warm. I have a bunch of engines I need exhaust flow rate, exhaust temperature, DPM emission rate and maximum allowable backpressure. They are: Model Serial# 6.6 66604755 … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,114 satisfied customers
I have a 1983 Cat motor, 3406--my driver has run it out of
I have a 1983 Cat motor, 3406--my driver has run it out of fuel several times, the latest time now it does not want to stay running, although it seems to be getting fuel. The truck will be going down … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,114 satisfied customers
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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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