Medium and Heavy Trucks

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I have a 5.9 cummins in motorhome. Air compressor is not
Second opinion] I have a 5.9 cummins in motorhome. Air compressor is not supplying enough air for brakes. I rebuilt air dryer and drained tge tanks so far. … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
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My issue is I have excessive blowby coming from blowby hose
my issue is I have excessive blowby coming from blowby hose and it is also coming out from oilfiller cap on top of motor as well as oil filler on side of motor … read more
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Andy
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Truck Vin H72526 cummins ism air compressor part number..
Truck Vin H72526 cummins ism air compressor part number.. problem started a couple days ago..truck would build way too much pressure 140+ psi. I changed the governor out and it built and stayed perfec… read more
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2005 400 isl when max power required, it lays down, derates.
2005 400 isl when max power required, it lays down, derates. it builds back up to power. all filters changed air fuel and seperator. It doesnt stay down, it starts building back up immediately and reg… read more
Daniel Wilson
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My air compressor is pushing oil through to my air dryer.
My air compressor is pushing oil through to my air dryer. Any thoughts on how to stop it? … read more
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Oil pushing out the air dryer on sdp cat. new compressors,
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Daniel Wilson
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Can I add an electric fuel pressure gauge to monitor the
Can I add an electric fuel pressure gauge to monitor the fuel pressure of the low pressure lift pump side side of a Bosch injection pump mounted on a Cummins C8.3 engine?… read more
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I was wondering what are the number codes turbor charge 2006
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cumminsdr
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Wayne how are you? I have two 97 freightliner fld 112 both
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Wayne
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Vocational, Technical or Trade Scho
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I have cummins isc 2009 With dpf It's building very
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cumminsdr
cumminsdr
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2000 ISM400 turbo #35000163. Suddenly developed enough crankcase
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cumminsdr
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Just rebuilt a 07 isx with a pdi delete used timing wedges
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cumminsdr
cumminsdr
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High School or GED
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have a truck that crankcase pressure light came then said it
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I have a '07 cummins 400 isx. It builds up 25 lbs. plus pressure
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Curtis B.
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i have a 8.3 cummins eng with a air dryer with lots of oil
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Peterbilt 377 A/E: Hi my name isXXXXX manage a small trucking
Hi my name isXXXXX manage a small trucking fleet. We have a 1997 Peterbilt with a N14 in it. We have replaced the compressor 3 times in the last year and 1/2 due to leaking oil (all under warranty so … read more
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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

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

4,258 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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