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HorsPowr · 07-02-2004, 03:16 PM

I have real bad (what I think is ) spark knock in upper RPMS and ESPECIALLY when air conditioning is on. Any advice? Ive heard its due to carbon build-up dealing with the EGR - will replacing the EGR help?

My engine is very strong and solid but high mileage. I probably need new plugs though and a tune up anyway.

07-02-2004, 03:16 PM	#1
HorsPowr Registered Member Join Date: Jun 2004 Location: Atlanta GA Posts: 5	Valve chatter or spark knock? I have real bad (what I think is ) spark knock in upper RPMS and ESPECIALLY when air conditioning is on. Any advice? Ive heard its due to carbon build-up dealing with the EGR - will replacing the EGR help? My engine is very strong and solid but high mileage. I probably need new plugs though and a tune up anyway.