Exhaust valves
07-11-2018, 11:05 PM
#1
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St. Jude Donor ‘18-'19-'20-'21-'22-'23-'24
Exhaust valves
Has anyone had to replace the exhaust valves on a C7 ?
I have had to get mine replaced twice now. Both times it was due to tracking the car.
The rear bumper has to come off the car. Not exactly what I want done to a 6 month old car.
I have had to get mine replaced twice now. Both times it was due to tracking the car.
The rear bumper has to come off the car. Not exactly what I want done to a 6 month old car.
07-12-2018, 06:58 PM
#2
AFM valves yes. NPP valves no. It's a flawed design. They can't handle the heat.
07-12-2018, 08:30 PM
#3
Le Mans Master
One of the reasons why the Z06 does’t have the AFM valves, but I haven’t seen many NPP valves failing.
07-12-2018, 09:02 PM
#5
Melting Slicks
There are guys who have replaced multiple sets. I dont think you can have them removed because the car sounds like total ***. I thought that they had an updated design to prevent this?
07-12-2018, 11:16 PM
#6
Le Mans Master
but.... you can't remove the AFM valves as the car will throw a code ....
Dave
07-13-2018, 06:55 AM
#7
My dads Vette has this problem. One of the AFM valves would stick open occasionally when the car went into 4cyl mode. It sounded horrible. Eventually the check engine light came on. It was fixed under warranty.
07-13-2018, 11:35 AM
#9
Melting Slicks
the car will not sound like crap if u use a range device , always in v8 mode and along with a M2W switch always open ...and sound wonderful, like a vette should sound , if I wanted my fathers Buick I would have bought my fathers Buick .....I bought a corvette and I want it to sound like a vette
but.... you can't remove the AFM valves as the car will throw a code ....
Dave
but.... you can't remove the AFM valves as the car will throw a code ....
Dave
07-13-2018, 01:14 PM
#13
Le Mans Master
Mine has been plugged in now for over 2 months without ONE PROBLEM ....
Dave