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I have a cummins isx signature 600 2001. turning fuel tanks
I have a cummins isx signature(###) ###-#### turning fuel tanks black … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
We have a C15 that is not overheating but is losing about a
We have a C15 that is not overheating but is losing about a gallon of water a day. It had a negative bottle test. Replaced the air compressor but it is still losing water. Cannot find any leaks … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,234 satisfied customers
Running the overhead on a 92 Cummins N14-370 ESN 11661877
Running the overhead on a 92 Cummins N14-370 ESN 11661877 CPL 1374. I am looking for the proper procedures. I have 2 Cummins bulletins showing completely different things … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
11,541 satisfied customers
Cummins 444 - ESN 11430644 CPL 821. Adjusting engine valves
Cummins 444 - ESN 11430644 CPL 821. Adjusting engine valves and injectors. I have adjusted valves and injectors IBC with 6in. lb. tool. Engine runs but has slight miss under load and white smoke does … read more
james Roberts
james Roberts
Maintenance assistant
Vocational, Technical or Trade School
3 satisfied customers
I live in Brasil and have an 855 in a 9370 Case Steiger
Hi, I live in Brasil and have an 855 in a 9370 Case Steiger tractor that originally came out with an N14, I purchased used and am going through the engine and have some questions. The serial number is… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
2007 Peterbilt 335 Cummins 8.3 ISC. SN 46644819...originally
2007 Peterbilt 335 Cummins 8.3 ISC. SN 46644819...originally brought in bc of loss of power & heavy smoke...replaced injectors (all 6), replaced #2 piston & sleeve, machine shop checked heads but no m… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
O have 2010 peterbilt 387 with a cummins isx s/n 79381246. I
O have 2010 peterbilt 387 with a cummins isx s/n 79381246. I have what looks like white smoke coming from cylinders 1,2,3 and 5. Mechanic has installed new fuel pump, new fuel rails, new injectors, an… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
418 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
5,234 satisfied customers
I have a 2004 C-15 Acert Single turbo conversion Peterbilt
I have a 2004 C-15 Acert Single turbo conversion Peterbilt 379. Recently I have been getting a vibration in the truck. It is most prevalent under load and in gears 16th to 18th. Engine runs rough at R… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,234 satisfied customers
I have a question about an 88 model LTA 10 cummins engine.
I have a question about an 88 model LTA 10 cummins engine … read more
timdieseltech
timdieseltech
lead diesel tech, shop owner
Vocational, Technical or Trade School
203 satisfied customers
I have a cummins isx in a 2012 peterbilt it has code 3566
i have a cummins isx in a 2012 peterbilt it has code 3566 aftertreatment diesel exhaust fluid dosing valve we replaced doser valve on a road call and code was inactive until my tech forced regen obv t… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
11,541 satisfied customers
I have a 1989 Marine Cummins 6 BT a CPL 953 that overheated
I have a 1989 Marine Cummins 6 BT a CPL 953 that overheated I thought I had a gasket problem because of white smoke that smell sweet. When I evaluated the cylinder wall it appears that there is a crac… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
I have a peterbilt 379 w/a cCummins ISX [email protected] engine. This is
I have a peterbilt 379 w/a cCummins ISX [email protected] engine. This is a brand new engine just installed in July. When my fuel gets hot or at a 1/2 tank it starts missing and acts like it is runnign out of fuel.… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
We have 1989 western star with l10 400 hp Cummins motor in
we have 1989 western star with l10 400 hp Cummins motor in it. We did an inframe to the motor, we sent cyl head out for rebuild, head was cracked, after 5 attempts the machine shop found a good core t… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
11,541 satisfied customers
I have a cummins signature isx gen 2 (pre egr). I am looking
I have a cummins signature isx gen 2 (pre egr). I am looking for actual crankshaft degrees for inlet and exhaust valve opening and closure so that I can use a dial indicator to double check the cam ti… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
I have a 97 379 Peterbilt with a 3406e and seem to have a fuel
I have a 97 379 Peterbilt with a 3406e and seem to have a fuel delivery issue as well as an asphaltene problem that came from a bunk heater that runs off one of my tanks. It turned the fuel black and … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,234 satisfied customers
I have an ISX 565 signature cummins in a 1999 379 Peterbilt.
I have an ISX 565 signature cummins in a 1999 379 Peterbilt. I think I am getting oil in the fuel. It uses about 1 gal of oil every 4000 miles. The fuel is grey in color in the tank and in the filter.… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
Answers from Multiple Experts requested: N14 celect plus exhaust guide wear, engine has 26
N14 celect plus exhaust guide wear, engine has 267000 miles on in-frame, heads were re-maned at local machine shop with no previous complaints on their head work. Had to change 2 cylinder kits because… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
11,541 satisfied customers
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Meet the Experts:

Daniel Wilson

Daniel Wilson

11,541 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

5,234 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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