Rough idle
Thread Starter
Melting Slicks
Joined: Jun 2017
Posts: 2,568
Likes: 1,183
From: Conyers Georgia
Rough idle
Picked this convertible up 3 weeks ago and noticed a rough idle. I figured I'd toss in a bottle of Chevron cleaner with Techron just as a possible solution. Two tanks later it is still a little rough. The water in my bottle moves from it. Anybody know of anything else I should check like the IAC or cleaning the throttle body? 60K miles on it and previous maintenance unknown.
Thanks guys
Thanks guys
Melting Slicks
Joined: Oct 2004
Posts: 2,385
Likes: 160
From: Orlando FL
Yes compared to my previous C6Z it is rough. According to my personal friend and Corvette Technician, part of the problem is related to the direct injection. His recommendation to help in minimizing carbon build up on the back of the valves, is to run up the rpm's in the lower gears from time to time.
Team Owner
Joined: Jan 2007
Posts: 29,063
Likes: 1,839
From: cookeville tennessee
Ttt
Man check your spark plug wires. ALSO they are a big PITA to make sure they are fully on the plugs... My stock c7 never did run like you are saying until the time I chg out the wires and didnt get one totally hooked up good..Also in here a number of guys had had this problem just from a wire coming a little loose. Robert
Last edited by robert miller; Jun 6, 2019 at 10:18 PM.
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Yes compared to my previous C6Z it is rough. According to my personal friend and Corvette Technician, part of the problem is related to the direct injection. His recommendation to help in minimizing carbon build up on the back of the valves, is to run up the rpm's in the lower gears from time to time.
Thread Starter
Melting Slicks
Joined: Jun 2017
Posts: 2,568
Likes: 1,183
From: Conyers Georgia
Team Owner
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Burning Brakes
Joined: Jan 2019
Posts: 1,101
Likes: 409
From: Lake Placid, FL
My 2017 started to do this a few months ago. I took it into the dealer and they said it needed a PCM update. It seemed to help a lot. It still has a little vibration but that is normal for that motor.
Thread Starter
Melting Slicks
Joined: Jun 2017
Posts: 2,568
Likes: 1,183
From: Conyers Georgia
Thread Starter
Melting Slicks
Joined: Jun 2017
Posts: 2,568
Likes: 1,183
From: Conyers Georgia
