Medium and Heavy Trucks

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Related Medium and Heavy Trucks Questions
I have a c15 early 20000 mechanical lift pump i am loosing
i have a c15 early 20000 mechanical lift pump i am loosing prime as i is siphoning the primary filter back to the tank … read more
NicholasM1019
NicholasM1019
Diesel Technician
Vocational, Technical or Trade School
7 satisfied customers
I have a 2007 c15 cat acert engine in a 387 peterbilt it
i have a 2007 c15 cat acert engine in a 387 peterbilt it will not crank unless it is sprayed with starting fluid once it is shut off it will not crank back this is the time you cut it off wont start b… read more
NicholasM1019
NicholasM1019
Diesel Technician
Vocational, Technical or Trade School
7 satisfied customers
3406 e cat on 2000 fld 120.truck shuts off while driving or
3406 e cat on 2000 fld 120.truck shuts off while driving or idling than it starts right back up … read more
NicholasM1019
NicholasM1019
Diesel Technician
Vocational, Technical or Trade School
7 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
NicholasM1019
NicholasM1019
Diesel Technician
Vocational, Technical or Trade School
7 satisfied customers
Plz i need help with my cat engine ... 2004 peterbilt 379
Hello, plz i need help with my cat engine ... 2004 peterbilt 379 Cat c15 Mbn12209 Engine was overhauled 70k miles ago at peterbilt shop . In past few days the truck will derate and And won't accelerat… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,242 satisfied customers
I have a bxs cat it's has a shutter threw the fuel like from
I have a bxs cat it's has a shutter threw the fuel like from the transfer pump … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,242 satisfied customers
2013 prostar n13 davco rail filter, loses prime after
2013 prostar n13 davco rail filter, loses prime after shutting off! Required 5-6 pumps to restart otherwise runs great! … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
430 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
10,242 satisfied customers
Fuel turning black.Have to change fuel filters often.Now
Fuel turning black.Have to change fuel filters often.Now loosing prime on the fuel. … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
Wayne spoke with you yesterday about this mack I am working
Wayne spoke with you yesterday about this mack I am working on when it gets hot it will not start- I installed the one way check valve in-line to inlet suction side of the filter head and that didn't … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
I have a 2000 peterbilt with a c-15 6nz motor and sometimes
i have a 2000 peterbilt with a c-15 6nz motor and sometimes it will lose its prime overnight sometimes not. sometimes it will lose its prime as soon as i turn the key off and the only way to get it to… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,242 satisfied customers
. Hoping Cat Man can help me here? I have a 2007 Freightliner
Hi. Hoping Cat Man can help me here? I have a 2007 Freightliner with a C-15 ACCERT Twin turbo. If the truck sits for 2-3 days it is very hard to start. Engine turns over and over, just about draining … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,242 satisfied customers
I HAVE A MBE 4000 AND I HAVE REPLACED THE STARTER AND THE PIECE
I HAVE A MBE 4000 AND I HAVE REPLACED THE STARTER AND THE PIECE THAT STOPS THE FUEL FROM RUNNING BACK TO THE TANKS AND IT STEEL ACT LIKE IT ISNT GETTING FUEL UPON START… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,740 satisfied customers
I have a driver broke down. He is in a 1997 379 with a c-12.
I have a driver broke down. He is in a 1997 379 with a c-12. The truck stalled, He has changed the fuel filters and primed it. It will idle for about 5 minutes until the fuel loses prime. If he presse… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
Im having problems with the engine losing prime. the fuel
I'm having problems with the engine losing prime. the fuel filters get sucked dry especially at idle. if you're running it at normal operating speeds it seems to maintain prime but at idle it sucks th… read more
Curtis B.
Curtis B.
Technician
Associate Degree
1,571 satisfied customers
Got a 03 mbe 4000 in a sterling truck was ran outta fuel got
Got a 03 mbe 4000 in a sterling truck was ran outta fuel got it going again now won't keep prime c/o check valves under fuel filter and at back of block still loses prime. Shouldn't be fuel line being… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,740 satisfied customers
Hi Cat Man, Iam working on a 1999 Peterbilt 379 with a 3406E
Hi Cat Man, I'am working on a 1999 Peterbilt 379 with a 3406E CAT in it, after sitting for a couple of days it will start up right away like usual but after about 10 seconds it will stall out.To get i… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,242 satisfied customers
HI, I have a 2010 Peterbilt with a Paccarr mx engine. The
HI, I have a 2010 Peterbilt with a Paccarr mx engine. The problem I am having is, there is a no start after a few days of sitting over night, say like a weekend. I let the pick up pump cycle, then it … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
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Meet the Experts:

Daniel Wilson

Daniel Wilson

4,737 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

10,242 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

4,023 satisfied customers

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

Jeremy

Jeremy

Certified Truck/Bus Technician

2,740 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

1,700 satisfied customers

All types of Cummins applications

Curtis B.

Curtis B.

Technician

1,571 satisfied customers

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

Chris (aka-Moose)

Chris (aka-Moose)

Technician

353 satisfied customers

24 years of experience diagnosing & repairing

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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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