It only happens mabe 2 or 3 times a week but when I shift gears normally from 2nd to 3rd the back of the car makes a quick pop. When I had the stock bumper I thought if was my muffler hitting the bumper but with the new bumper I havent put the exhaust back on yet so Im riding with the stock exhaust and its still doing it...any suggestions?

 

2000 Neon ES

When I had the stock exhaust, it never did that. Now I have a new exhaust system (Pacesetter catback, Pacesetter header) and now it makes a quick pop. It normally pops when I change gears from 3rd to 4th. It sounds like something is falling in the trunk but, I think I can feel it in the exhaust. The reason I say I can feel it in the exhaust is b/c it feels like I loose a tiny bit of power (like it hesitates). It only does it like once a month; if not once a month, it has to be more than that. I was just driving and it happened. Now I am beginning to think it was a backfire.

Doesn't bother me at all

 

It doesn't hesitate like you think it would when you think of the word "hesitation"; it just takes a sec longer to kick in than it normally would.

 

Yep thats exactly what Im talking abt I can feel it and it definelty losses alittle but when Im in 2nd doing abt 55 and I shift thats usually where I feel it the most if it does it from 3rd to 4th is not as bad.

 

mine only backfires when I do a quick shift from 4th to 3rd to get an upper hand on the opposing idiot in the civic beside me

 

Mine doesn't backfire when shifting...it does however pop when I'm decelerating.

 

so does mine, don't you love that noise?

 

I don't mind it....but I could do without it. Either way its all good. Its more of a rumble than a pop.

 

Yes; Decelerating in my car rumbles (I love the rumbling). Like I said; My car only backfires when shifting from 3rd to 4th. My car has never backfired when racing though.

 

I know on my 98 55 in 2nd is about redline and the rev limiter could be kicking in.