Ok, I was driving the Firebird ('98 Y87 3.8L) about a month ago and then I noticed that the rpms started hopping and the power wasn't getting to the ground. I got it home. And then I started driving it some and noticed that it just kept getting jumping...then the service engine light came on...and turned off right before I got to Autozone to run a diagnostic. So I drove it home. Day before yesterday it started doing it again and took it to AutoZone and got the diagnostic done and it said that number 3 cylinder was misfiring. The spark plugs have been changed once since I've owned the car. Well I went and pulled the spark plug today and it looked really old...so I replaced it w/ a Champion platinum plug. And then started it and I noticed that was better. And after a couple drives around the block the light went off. And then I noticed it happening again. And if I rev it in neutral it's fine but under load it gets jerky just accelerating
it hops RPMS by like 500 rpms at a time and the needle goes just crazy!!!
Should I try replacing all the spark plug (doing this tommorow anyways) or do you think I have a drivetrain/clutch problem? I'm thinking about taking the clutch out for a look tomorrow. If I rev the car up it makes this wierd noise when I let off the gas...Any ideas?
it hops RPMS by like 500 rpms at a time and the needle goes just crazy!!!
Should I try replacing all the spark plug (doing this tommorow anyways) or do you think I have a drivetrain/clutch problem? I'm thinking about taking the clutch out for a look tomorrow. If I rev the car up it makes this wierd noise when I let off the gas...Any ideas?
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