Skip the auto shop - Our mechanics make house calls

Q: The durango runs very rough after a loud pop.

asked by on

I cranked the Durango up one morning and it made a loud pop and now runs very bad .

My car has 130000 miles.
My car has an automatic transmission.

A: This can happen for many reasons, however u...

This can happen for many reasons, however usually a loud pop or backfire is a sign of a lean fuel condition or an ignition timing problem. A lean fuel condition can be caused by a faulty mass air flow sensor or throttle position sensor.

An ignition problem can occur as a result of a bad crank position sensor, faulty ignition coils, and many other things.

This issue should trigger a Check Engine Light which will register some fault codes in the car’s computer. I would recommend having an expert from YourMechanic come to your home to diagnose any trouble codes using a scan tool which will help to download specific details as to which parts have failed.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Reverse lights come on when I start the engine

Hello. It is possible that the reverse light wiring is faulty, or that the light bulb sockets are damaged in some way. However, it is more likely that there is an issue with the neutral safety switch, and it needs...

Q: How to diagnose a fan clutch?

If the fan clutch is a thermostatic type then you should be able to start the vehicle cold and using a shop towel, dangle it in the fan blade while keeping your hands clear, to see if the towel stops...

Q: rough start, runs well, after it warms up

Hi there. The OBD-II Code P0174 indicates that there is a lean condition detected by the Engine Control Module (ECM). A lean condition will be created if there is too much air, and not enough fuel, in the air fuel...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...