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I have a 2003 peterbilt 379 with cat c15,everytime the
Hi, i have a 2003 peterbilt 379 with cat c15,everytime the temperature get bellow 5.. i have problem with my trotle position sensor,i just replace it 2 months ago when got really cold and today very c… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,118 satisfied customers
I have a 2005 peterbilt 379 with a cat acert C15 in it the
I have a 2005 peterbilt 379 with a cat acert C15 in it the blower motor will not work on any speed I have gotten the multimeter out and started checking when I go to any point in the system be at the … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
205 satisfied customers
I have a 1989 Frieghtliner with a cat 3406B it runs fine
I have a 1989 Frieghtliner with a cat 3406B it runs fine when it is warming up, but after about 5 miles or so it cuts out and losses power. It wound go much over 35mpr… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,114 satisfied customers
I have a 1997 peterbilt 379 with a caterpillar 3406e 5ek
I have a 1997 peterbilt 379 with a caterpillar 3406e 5ek that's been having a sputter/miss fire issues. It only does the sputter or miss underload at around 1400rpms and 20-30psi boost it will stop on… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,114 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
5,114 satisfied customers
3406b 1993 CAT INJECTION PUMP REPLACE, NEW PUMP INSTALL
3406b 1993 CAT INJECTION PUMP REPLACE, NEW PUMP INSTALL SMOKING BLUE AND WHITE ,REPLACED OLD PUMP SMOKING. TRUCK WAS NOT SMOKING UNTIL I CHANGED THE PUMP. I DID CHANGE THE REAR HOUSING UNIT FROM OLD T… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,114 satisfied customers
I have a 1989 Pete wt 3406B, doesn't use any oil engine
I have a 1989 Pete wt 3406B , doesn't use any oil engine sounds good until the other day it started making a knocking noise when you bring the t … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,114 satisfied customers
I am workn on a 2007 peterbilt 379 with a C-15 NXS. The
Hi my name is Ben.. I am workn on a 2007 peterbilt 379 with a C-15 NXS. The jakes do not work on the high setting. We have tried new engine harness, new spacer plate harness, new cab to engine harness… 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
I'm switching a 99 peterbilt from Detroit ddec3 to cat 3406e
I'm switching a 99 peterbilt from Detroit ddec3 to cat 3406e 40 pin. What do I need for the cab. I have the harness from the ecm to the firewall from a donor truck. … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,118 satisfied customers
I have just purchased a t600 kenworth with 1 a 3406b cat in
Hi I have just purchased a t600 kenworth with 1 a 3406b cat in it. Before I got the truck they replaced tho oring at the front of the injector pump because it was leaking oil. when they put it back to… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,118 satisfied customers
I have 2007 Peterbilt 379 with a C13 Cat engine that has the
I have 2007 Peterbilt 379 with a C13 Cat engine that has the fuel turned up to far. we are planning to do an overhaul and i'm wondering if turning the fuel back down a bit is a difficult task can you … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,114 satisfied customers
hi,I got a 2005 379 engine peterbilt, every morning it starts
hi,I got a 2005 379 engine peterbilt, every morning it starts ok. and runs for 3 or 4 minutes and then gets kill down and I have to use starter fluid to make it work, I have this problem every morning… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,735 satisfied customers
2007 Peterbilt with a C15 Caterpillar 475 hp (eng sn#MXS79829).
2007 Peterbilt with a C15 Caterpillar 475 hp (eng sn#MXS79829). Have a dead miss at the #2 cylinder. With the injector powered it has a dead miss and is smoking. When I shut the #2 injector off with E… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,114 satisfied customers
My truck stopped while i was driving! I think imissed à little
M'y truck stopped while i was driving! I think imissed à little bit of fuel and it stopped ! I trier to prime the fuel puma but it won't start… read more
Curtis B.
Curtis B.
Technician
Associate Degree
1,270 satisfied customers
I have a 97 peterbilt 379 with a 3406e cat, for some reson
I have a 97 peterbilt 379 with a 3406e cat, for some reson my fuel tanks wont level, the other day, I still had 1/4 tank in the driver side, but the truck shut off while going down the road because th… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
3,693 satisfied customers
My boss has a 1996 379 peterbilt with a 3406 E cat. Truck has
My boss has a 1996 379 peterbilt with a 3406 E cat. Truck has a 13 speed with 3:55 rears. The truck set for 2 years. He has a lot of $ tied up in it. The problem is they had the parameters changed in … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,114 satisfied customers
Have a cat C16 in a Peterbilt, it was inframed 2 weeks ago,
Have a cat C16 in a Peterbilt, it was inframed 2 weeks ago, full platnuim engine kit and has had a miss like its running outta fuel on a climb. The truck did not have this issue when I took it to the … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,114 satisfied customers
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Meet the Experts:

Daniel Wilson

Daniel Wilson

4,118 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

5,114 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

3,693 satisfied customers

worked on, Gmc, Macks, Freight liner,Mercedes Benz,,Ford, sterling

Jeremy

Jeremy

Certified Truck/Bus Technician

2,735 satisfied customers

ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, Network Engineer specializing in CAN faults, Aftertertreatment, and vehicle communications

cumminsdr

cumminsdr

Mechanic

1,552 satisfied customers

All types of Cummins applications

Curtis B.

Curtis B.

Technician

1,270 satisfied customers

Technician turned service manager on multiple lines of trucks and engines, used in industry.

Chris (aka-Moose)

Chris (aka-Moose)

Technician

262 satisfied customers

16 years of experience

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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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