ZR-1 Net Registry Forums - View Single Post

-=Jeff=- · 12-13-2018

You only should hear it for about a minute or less on a cold start. Knock could be piston slap or the dual mass flywheel too

12-13-2018	#4
-=Jeff=- Join Date: Jul 2007 Location: Bartlett, IL Posts: 7,161	Re: Slight knocking when cold You only should hear it for about a minute or less on a cold start. Knock could be piston slap or the dual mass flywheel too __________________ 1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Shelby Series 1 - Wilwood Brakes Custom Interior NCM Lifetime Member #978