How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask ASE Master Tech 35yrs Your Own Question
ASE Master Tech 35yrs
ASE Master Tech 35yrs, ASE Master Auto Tech
Category: Car
Satisfied Customers: 2095
Experience:  ASE Certified since 1972,Master Auto tech,Heavy Truck Tech, foriegn and domestic
Type Your Car Question Here...
ASE Master Tech 35yrs is online now
A new question is answered every 9 seconds

engine running rough, flames coming out of exhaust

Customer Question

engine running rough, flames coming out of exhaust
Submitted: 4 years ago via
Category: Car
Expert:  Mike S. replied 4 years ago.

Please include the year,make,model,sub-model,engine,2wd,4wd,flex,gas,diesel. Please click accept when done, thanks and come back often.

It sounds like a blown head gasket or the exhaust valve not seating, possibly bent valve. I would start off with doing a compression test. then remove the head on the side that fails the test.

Customer: replied 4 years ago.

It is a 2011 Dodge Ram 2500, Cummins 6.7 liter diesel engine 4x4


Expert:  Mike S. replied 4 years ago.
Never mind. I am not a diesel expert
Expert:  ASE Master Tech 35yrs replied 4 years ago.

Glad to be of help. The only things that can cause this are if someone put gasoline in the tank or your injection pump is bad. Smell your fuel to see if you can smell gasoline. If you don't smell gasoline in fuel, replace your injection pump.