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X. 2003 mack RD688s e7 etech 350 engine. Will not start, it
2003 mack RD688s e7 etech 350 engine. Will not start, it only cranks. I have eliminated any problem from the fuel tanks. I have a line running from a separate fuel container. I've replaced the Crank sensor and the Engine speed sensor. still no luck … read more
Steven
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1992 Mack CH613: When started, will automatically go to 1400 RPM and continue to climb. We messed around with the injectors and eventually went back to a normal idle. After driving 15 miles, and chang… read more
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Jeremy
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1999 Peterbilt with Cummins n14 -- engine is loping, like a
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I have 2003 Mack Ch613 with an E7-427. Engine won't start,
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I have a leroi towable air compressor. I purchased it
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Jeremy
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I have a 1991 mack truck with a mack pedigree motor beleave
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Wayne
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I am working on a mack ch613, it has an E7 engine. engine
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Have a 2000 3126B engine SN #8yl52723 that we changed number
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i have a 1995 mack dumptruck with the vin number 1M2P267C9VM029858
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I have 2007 Volvo 670 with a d12. My truck was recently in
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Cat Man
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My N14 Celect Cummins smokes only at times. when it smokes
My N14 Celect Cummins smokes only at times. when it smokes idling its blue and that is only at times. Sometimes it idles, pure clear smoke. When I am heavy on the throttle it smokes black at the begin… read more
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Meet the Experts:

Daniel Wilson

Daniel Wilson

7,058 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

4,530 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

2,892 satisfied customers

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

Jeremy

Jeremy

Certified Truck/Bus Technician

2,243 satisfied customers

ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, EPA 608/609 HVAC Certified, Steering/Suspension and ABS/Brakes Technician

cumminsdr

cumminsdr

Mechanic

1,351 satisfied customers

All types of Cummins applications

Curtis B.

Curtis B.

Technician

991 satisfied customers

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

dieseldan55

dieseldan55

Contractor

74 satisfied customers

Road Service mechanic for Volvo Construction.

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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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