Sounds like a misfire but goes away with rpms. I don't think it's an exhaust leak as I checked some youtube videos and they sound different. The sound is not continuous and I have no idea what it is. It drives me nuts.
I have an unknown to me o/r x pipe.
This started after I fixed a blown plug, and it sounds like a slight misfire but it runs good and no CEL.
Well i am gonna take the day off tomorrow to figure this thing out. I think it might be a plug or coil pack. Thoughts? No CEL and drives fine with no loss of power. It only backfires/misfire at idle.
Well i am gonna take the day off tomorrow to figure this thing out. I think it might be a plug or coil pack. Thoughts? No CEL and drives fine with no loss of power. It only backfires/misfire at idle.
I had the same issue and it only got worse over time. Had a slight misfire at idle and drove about 3000 miles and then I had a misfire all the time and could barely drive it. Turned out to be a coil pack so I replaced all of them. Took me 15 min to do all 8
I just recently changed my plugs too. After I did that I had a bad misfire at idle. after unplugging the coil packs one at a time to see which one was the problem, I took it off and put it back on and problem solved. I would suggest double checking your work. Maybe a contact isn't touching a plug?
Okay so its code for lean bank 2.
So far i cleaned he maf,tb and iac. Made everything better but the misfire is still there.
Checked plugs and coils and are in good working order.
I noticed the heater hose that comes out of the pcv collapses when the engine is running.
Replaced that but wondering if a faulty pcv can be the culprit?
Aren't the bank codes about the o2 sensor? My car was lean on bank 1 and I replaced my o2 sensors.
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Related Threads
?
?
?
?
?
Mustang Evolution Forum
2.1M posts
50.9K members
Since 2003
A forum community dedicated to Ford Mustang owners and enthusiasts. Come join the discussion about performance, horsepower, modifications, troubleshooting, racing, and more!