cylinder misfire
thaone972
03-29-2006, 06:38 PM
My 99 Malibu 4 cylinder has had a long line of problems. The current issue is that my check engine light came on and said that there was a cylinder 1 misfire. The engine started running rough and I was burning through gas like crazy. The car didn't want to go uphills and I had to floor it just to get to the top. I changed the spark plugs, boots and coils. The light came back on a few minutes later :banghead: and said cylinder 1 misfire again. Any ideas of what else it could be?
bcopeland
03-29-2006, 08:07 PM
Is it making any type of sounds?
thaone972
03-29-2006, 08:10 PM
No it's not making any noise, just shaking. Every once in a while, while i'm accelerating it kicks in and takes off
bcopeland
03-29-2006, 08:29 PM
Check your PCV value to see if it is clogged or to see if the hose is cracked. Also check your gas cap.
richtazz
03-31-2006, 04:23 PM
It's probably the fuel injector on that cylinder. Since you changed the ignition components, and the miss stayed on the same cylinder, that points straight to an injector.
thaone972
04-04-2006, 09:23 PM
I finally found the problem, it wasn't the gas cap or the pcv valve. When i changed the spark plugs i used bosch platinum, i tried champion plugs instead and the problem went away. Thanks for the advice :icon16:
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