Spark Plug Help
Jun 6, 2018 | 08:22 PM
Thread Starter
Burning Brakes
Joined: Aug 2014
Posts: 945
Likes: 226
Spark Plug Help
My C5 is a 2002. I have 40K miles and the plugs have never been changed. If the car is running good, when should the plugs be changed?
Jun 6, 2018 | 08:35 PM
Thread Starter
Burning Brakes
Joined: Aug 2014
Posts: 945
Likes: 226
My concern is there age. Thanks for your help.
Jun 6, 2018 | 08:57 PM
Pro
Joined: May 2018
Posts: 611
Likes: 184
From: Atlanta GA
100k miles eh? I should probably do that since I’m at 99.3k
Last edited by Arvalo; Jun 6, 2018 at 09:01 PM .
Jun 6, 2018 | 09:11 PM
Burning Brakes
Joined: Aug 2001
Posts: 877
Likes: 43
From: Surprise AZ
I just changed my 2004 with 50,000 miles. The old plugs looked good but there was a questionable wire. It now runs smoother. You will need new wires. The old ones are PITA to get off.
Jun 6, 2018 | 09:32 PM
Thread Starter
Burning Brakes
Joined: Aug 2014
Posts: 945
Likes: 226
Jun 6, 2018 | 10:21 PM
Pro
Joined: Aug 2016
Posts: 667
Likes: 162
From: Jennings LA
I changed mine at about 113,000 I think. 3 wires came apart. One more fell apart and the plug for that cylinder had burnt the center electrode near flush. So as said, order wire set with plugs.
Jun 6, 2018 | 10:39 PM
Race Director
Joined: Sep 2004
Posts: 11,874
Likes: 263
From: Arlington Va Current ride 04 vert, previous vettes: 69 vert, 77 resto mod
I would probably have the fuel injectors cleaned before I changed 40k plugs
Jun 7, 2018 | 12:32 AM
Le Mans Master
Joined: Sep 2014
Posts: 5,278
Likes: 539
From: Kelowna BC
I changed mine at 40K miles, but only because I was installing headers. If it runs fine, leave them IMO.
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Top 10 Corvettes Coming to Mecum Indy 2026!
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
10 Revolutionary 'Corvette Firsts' Most People Don't Know
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
10 Most Common Corvette Problems of the Last 20 Years!
Jun 7, 2018 | 01:51 AM
Joined: Mar 2001
Posts: 367,761
Likes: 24,682
From: In a parallel universe. Currently own 2014 Stingray Coupe.
C7 of the Year - Modified Finalist 2021
MO Events Coordinator
St. Jude Co-Organizer
St. Jude Donor '03 thru '25
NCM Sinkhole Donor
CI 5, 8 & 11 Veteran
Jun 7, 2018 | 01:54 AM
Melting Slicks
Joined: Aug 2013
Posts: 2,491
Likes: 315
St. Jude Donor '15-'16-'17-'18-'19-'20-'21-'22
I used the red OPM spark plug wires and the NGK TR55IX plugs
Jun 7, 2018 | 09:35 AM
Race Director
Joined: May 2003
Posts: 14,136
Likes: 2,984
From: Iowa
St. Jude Donor '03 thru '26
Quote:
Originally Posted by
ttiros
My C5 is a 2002. I have 40K miles and the plugs have never been changed. If the car is running good, when should the plugs be changed?
100K miles, age doesn't matter.
Jun 7, 2018 | 01:56 PM
Thread Starter
Burning Brakes
Joined: Aug 2014
Posts: 945
Likes: 226
Quote:
Originally Posted by knewblewkorvette
100K miles, age doesn't matter.
Thanks
