ZR-1 Net Registry Forums - View Single Post - Motor Knocking and Failing Injectors

Paul Workman · 10-18-2010

I didn't think my idle was "rough" before changing to the new injectors (last Saturday), but the instant I fired her up with the new injectors, the difference was obvious - smooth as silk and low speed drivability was noticeably improved as well!

The Corvette dealer had the injectors changed (at a GM dealership) before I bought the car 3 years ago. But, apparently "Mr. Goodwrench" replaced the original injectors with more of the same! My point is that even if a GM dealership replaces your injectors, you want to be involved to be sure the injectors installed are for a 93 MY or newer...You don't want them to do as they apparently did in my case - put the same crap back in that was initially installed in the first place!

Change your injectors and go from there. Not only can a bad injector rob power and create rough idle, but it can lead to melting valves too...ask me how I know!

Good luck. let us know how the new injectors work out for ya.

P.

10-18-2010	#3
Paul Workman Join Date: Nov 2007 Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri Posts: 6,466	Re: Motor Knocking and Failing Injectors - A Few Questions I didn't think my idle was "rough" before changing to the new injectors (last Saturday), but the instant I fired her up with the new injectors, the difference was obvious - smooth as silk and low speed drivability was noticeably improved as well! The Corvette dealer had the injectors changed (at a GM dealership) before I bought the car 3 years ago. *But, apparently "Mr. Goodwrench" replaced the original injectors with more of the same!* My point is that even if a GM dealership replaces your injectors, you want to be involved to be sure the injectors installed are for a 93 MY or newer...You don't want them to do as they apparently did in my case - *put the same crap back in that was initially installed in the first place!* Change your injectors and go from there. Not only can a bad injector rob power and create rough idle, but it can lead to melting valves too...ask me how I know! Good luck. let us know how the new injectors work out for ya. P.