Bullitt
September 15, 2011, 12:50am
1
Hello All,
I own a 2008 Bullitt Mustang. The past six months I have noticed a backfire. It only happens after the car has been driven and cools down for a few hours. It doesn’t happen after sitting all night. The car is under warranty and my dealer says it is normal. The car also runs better when it is cold. I would appreciate any help. Thanks…
bscar
September 15, 2011, 1:20am
2
Mileage?
Last time the spark plugs where changed?
texases
September 15, 2011, 1:58am
3
Is it a noise out the exaust, or from under the hood?
Bullitt
September 15, 2011, 3:04am
4
mileage is 23,000, orignal spark plugs. I had one plug and plug wire changed by dealer because of misfire. The noise is out of the exhaust.
dagosa
September 15, 2011, 9:09am
5
If it’s still under warranty, take it to another Ford dealer.
texases
September 15, 2011, 1:35pm
6
When, exactly does it happen? At idle? Accelerating? Coasting?
Bullitt
September 15, 2011, 2:57pm
7
It happens the first deacceleration after starting the car.
texases
September 15, 2011, 2:58pm
8
Since it didn’t do it before, have another mechanic take a look. My GTI ‘popped’ on decelleration from day one.
You also might post this in a Mustang forum, probably folks there familliar with it.
ok4450
September 17, 2011, 4:36am
9
You need to scan it for codes as a first step. Maybe there’s a problem in the air injection system.