Medium and Heavy Trucks

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Related Medium and Heavy Trucks Questions
I have a 3406 in2003 Pete 379. No power to pin 21. Need to
I have a 3406 in2003 Pete 379. No power to pin 21. Need to know where it gets it's power from. … read more
Nich1019
Nich1019
Diesel Technician
Vocational, Technical or Trade School
47 satisfied customers
I have a 1998 Pete 379 with a 3406e. Engine starts up fine,
I have a 1998 Pete 379 with a 3406e. Engine starts up fine, gauges all look good, it will run for a minute or so and then it starts showing check engine light and flashing stop engine. It will shut it… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
1999 PETERBILT 379 WITH A DETROIT 12.7. OPENED THE FUEL
1999 PETERBILT 379 WITH A DETROIT 12.7. OPENED THE FUEL WATER SEPARATOR TO DRAIN THE WATER AND ENDED UP WITH AIR IN THE LINES. TRUCK WONT START AGAIN. HOW CAN I PRIME THE FUEL SYSTEM ON THIS ENGINE SI… read more
Nich1019
Nich1019
Diesel Technician
Vocational, Technical or Trade School
47 satisfied customers
I have a 1996 model 379 peterbilt with a cat 3406e in it.
I have a 1996 model 379 peterbilt with a cat 3406e in it. The cruise control has started not working intermittently. I thought it had to be the on/off switch so I changed it and it still does the same… read more
BrentR718
BrentR718
13 satisfied customers
I have an 05 pete with a c15 the fuel fliter gauge is max
i have an 05 pete with a c15 the fuel fliter gauge is max out and light is on if you shut it off it looses its prime and you have to prime the fuel system before it will start. We have changed filters… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
3406 e loses prime when changing fuel filters. 2000 379
replaced what i thought was a check valve in secondary filter housing.the valve goes in from the bottom and uses a 1 " wrench . theres another valve that also uses a 1" wrench that goes in from side that has a ball in it.which one is supposed to hold fuel to the head … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
I have 2005 cat c7 changed the fuel filters and can't get it
Hi I have 2005 cat c7 changed the fuel filters and can't get it primed … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
The abs relay valve is leaking air out the exhaust all the
The abs relay valve is leaking air out the exhaust all the time with the brakes set and released whats out the valve or can it be something else … read more
timdieseltech
timdieseltech
lead diesel tech, shop owner
Vocational, Technical or Trade School
207 satisfied customers
I'am working on a 1999 CAT 3406E in a freightliner truck,
Hi, I'am working on a 1999 CAT 3406E in a freightliner truck, the truck has been sitting for 4 months and now it will not start. I scanned the engine there are no active fault codes, I'm almost certai… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 satisfied customers
Cat man! I have a 1996 peterbilt 379 with a 3406E, serial#
hello cat man! I have a 1996 peterbilt 379 with a 3406E, serial# ***** i'm looking at a 1999 3406E serial# ***** in a Volvo, both are original to the trucks, my question is can the Volvo motor be put … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
I'am working on a 1999 peterbilt with a n-14 cummins in it.
hi , i'am working on a 1999 peterbilt with a n-14 cummins in it. the engine number is ***** the only way I can get the engine to start is if I mannualy put my engine priming tool onto the com check fi… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
214 satisfied customers
Cat Man, I'am working on a 1999 Cat 3406E. Engine serial
Hi Cat Man, I'am working on a 1999 Cat 3406E. Engine serial number 2ws41434. It wouldn't start, it would turn over but not fire. I replaced all 4 batteries because it seemed to be cranking over a bit … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
Cat Man, I'am working on 1999 c-12 CAT serial # *****
Hi Cat Man, I'am working on 1999 c-12 CAT serial # ***** it is in a sterling truck. The engine will start right away but sometimes after about 45 seconds of running it will stall out, if you give the … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
Cat Man, I'am working on a twin turbo Cat engine serial
Cat Man, I'am working on a twin turbo Cat engine serial number BXS05167, the check engine light was on I scanned it and it came up as code 95 so I replaced the IVAP sensor and the light went out. Afte… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
Hi Cat Man, Iam working on 3406E Cat serial number 5EK78587.
Hi Cat Man, I'am working on 3406E Cat serial number 5EK78587. The engine runs really nice and it is able to get up to full RPM, the problem is the engine is making little to no boost ( 0.7 to 1 lbs) a… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
Why is it, when I press the brake peddle or turn on ac fan
Why is it, when I press the brake peddle or turn on ac fan my volt meter drops to zero? Also sitting here with everything off including ign. switch it it keeps cycling?… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,756 satisfied customers
Have a peterbilt truck with a 3406e engine. I changed a fuel
Have a peterbilt truck with a 3406e engine. I changed a fuel tank and the truck ran for about 5 minutes then it quit and we cannot get it started.. The new tank was empty when we started it… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
Hi Cat Man, Iam working on a C-15 CAT Accert Engine.Serial
Hi Cat Man, I'am working on a C-15 CAT Accert Engine.Serial # XXXXX engine was starting to run rough then it eventually just quit running.My customer said there was a code displayed on his dash comput… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 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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