Close
I changed plugs, still misfired. i drive 2 weeks then change wres ignition coils and catalytic converte its stil misfiring. why?
2002 Oldsmobile Alero

I changed plugs, still misfired. I drive 2 weeks then change wres ignition coils and catalytic converte its stil misfiring. Why?

(2002 Oldsmobile Alero)
Why is still misfiring. Could I have fouled out plugs again?
How long have you had this problem? Lady I bought from said motor was rebuilt then sar for 4 months 1/4 tank of gas not driven . She said about 20 minutes before she ran out of gas it started making this weird thing stuttering I'm assuming the start of misfiring and I've changed everything and it's still doing it
Tags: oldsmobile, alero
1 answer & 0 comments
Popular Answer
on September 07, 2019

A failed FUEL INJECTOR will cause cylinder misfire..

First the misfiring cylinder MUST be located - only then can meaningful testing commence.

Good luck!
Sign in to reply
General Diagnosis
$88 - $111 Learn More
on September 07, 2019

A failed FUEL INJECTOR will cause cylinder misfire..

First the misfiring cylinder MUST be located - only then can meaningful testing commence.

Good luck!
Sign in to reply

Similar Questions

View answers to similar questions from RepairPal's community of auto experts and enthusiasts.
I have a 2004 olds alero. the blinkers work occasionally. the problem started months ago and the problem has gotten...
It just happened all of a sudden while driving home. didn't affect the way it runs , the panel just quit working ac...