How often should you replace the spark plugs?
Thread Starter
Le Mans Master
Joined: May 2003
Posts: 6,937
Likes: 3
From: Orange County California
How often should you replace the spark plugs?
Given, some Corvette are driven hard.....how often should you replace your spark plugs and if so...what kind? :chevy
Burning Brakes
Joined: Jul 2003
Posts: 1,104
Likes: 0
From: "In a van down by the river" CO
Re: How often should you replace the spark plugs? (MikeNMaxZO6)
Alot of guys here recommend the NGK TR55's. I replace my plugs when I notice a difference in the idle quality. That was first at about 35,000 miles, then again when I swapped cams. Pull one or two out and check the gap and electrodes. If the electrodes are rounded-off, black and sooty and/or excessively gapped change them out. Plugs are cheap. The stock recommended gap is .055". Chris
Race Director
Joined: Aug 1999
Posts: 15,466
Likes: 0
From: GARDENA Ca, State Of Konfusion
St. Jude Donor '05
Re: How often should you replace the spark plugs? (MikeNMaxZO6)
I use the NGK TR-55 and I change them are 20K miles, they are cheap. The recommended gap for the NKG plug is .050!
Safety Car
Joined: Sep 2001
Posts: 4,411
Likes: 1
From: Wilmington NC
Re: How often should you replace the spark plugs? (MikeNMaxZO6)
Given, some Corvette are driven hard.....how often should you replace your spark plugs and if so...what kind? :chevy
You can see a large selection at:
http://www.sparkplugs.com
Burning Brakes
Joined: Dec 2000
Posts: 993
Likes: 5
From: Cincinnati Ohio
Re: How often should you replace the spark plugs? (MikeNMaxZO6)
MikeNMaxZ06,
I replaced the original sparkplugs in my 1999 C5 coupe with new Delco (stock) plugs at 30,000 miles. The car idled much smoother. I do not see how Chevrolet can recommend 100,000 miles for the plugs. If you are not sure what to do, just replace the plugs and be done with it.
I replaced the original sparkplugs in my 1999 C5 coupe with new Delco (stock) plugs at 30,000 miles. The car idled much smoother. I do not see how Chevrolet can recommend 100,000 miles for the plugs. If you are not sure what to do, just replace the plugs and be done with it.
