Slight studder above 4800 rpms
Thread Starter
Race Director
Joined: Jul 2000
Posts: 11,007
Likes: 1
From: Probably in the paint booth....
Slight studder above 4800 rpms
Any one have any ideas on what could be causing this ??? Could the plugs being gapped open to much cause this. (like .055" vs. the correct .050")
Thanks
Neal
Thanks
Neal
Le Mans Master
Joined: Mar 2001
Posts: 8,476
Likes: 3,975
From: Omaha
2020 Corvette of the Year Finalist (performance mods)
C4 of Year Winner (performance mods) 2019
Re: Slight studder above 4800 rpms (Arisa)
I had the exact same problem on mine when I bought it. Took it back to the dealer where I got it and they replaced the plugs & wires. Solved the problem completely.
Team Owner
Joined: Aug 1999
Posts: 69,020
Likes: 0
From: Bagpipes put the "fun" in "funeral"
Re: Slight studder above 4800 rpms (miker61588)
does those models come with a cap and rotor??
A bad optispark can also cause those symptoms.
Burning Brakes
Joined: May 2001
Posts: 790
Likes: 2
Re: Slight studder above 4800 rpms (Thud)
I've been having that same problem. I have all the service records on this car, and the optispark, wires, and plugs have NEVER been changed. The car now has 102K on it. So, I'm hoping the new opti, plugs, & wires will correct the problem...might even get a little better fuel economy.
I figure it's either fuel or fire. If the new stuff doesn't improve it any, I'm going with a new filter, pump, pressure regulator, and injectors. it WILL be better sooner or later.
I figure it's either fuel or fire. If the new stuff doesn't improve it any, I'm going with a new filter, pump, pressure regulator, and injectors. it WILL be better sooner or later.
Team Owner
Joined: Apr 2000
Posts: 27,818
Likes: 8
From: CT
Re: Slight studder above 4800 rpms (emoshn)
Do the plugs and wires. My L98 had a miss I was going completely out of my mind trying to find! It turned out to be a bad plug wire. It's usually something simple.
Try that,and let us know.
Try that,and let us know.
