misfiring

[99firebird]

whats up guys,,,, i have a problem, everytime i floor the gas pedal my car is misfiring, i had all my wires and plugs replaced but the same thing is happening,,, it did this before, and took it to the dealership ( it was still under warrenty), and they said i had a bad coil,,,has anyone had to do this before? if so what is the cost,,, also when i had the tune up,,, the 6th cylinder was misfiring,,, then i took it back and they said it was the 4th,, then check engine like came on a couple of weeks later , took it to autozone and said it was the 1st,,,,any suggestions?

thanks

[Jlo]

well on mine the same thing is happening and from my best knowledge it's the 6th piston. Im just going to change my motor for 600$ plus its going to be the 3.8 litter not my 3.4

[jonny985]

I had the same problem a few months ago. It was a bad coil. It ended up costing me way too much.

I replaced them with Accel coils for $120 but got ripped off by my mechanic to diagnose the problem.

Runs like a champ now.

[Fusion]

<blockquote>quote:</font><hr>Originally posted by Jlo:
well on mine the same thing is happening and from my best knowledge it's the 6th piston. Im just going to change my motor for 600$ plus its going to be the 3.8 litter not my 3.4<hr></blockquote>

Really wow, a 3.8 for $600, dang thats a good price Hope you can put it in yourself. If not thats gonna be another $500 or so.