EX KNOCKING OR PINGING NOISE FROM EITHER THE VALVES
2003 Honda CRV
May, 13, 2012 AT 2:28 AM
I have a 2003 Honda CRV EX 4awd and I noticed between 10 to 20 mph I heat a knocking or pinging noise from either the valves or something in the top of the engine. I'm a 100% sure its from the engine and it only happening in the lower speeds. When I get to 27 - 30 mph it goes away. Has anyone else have had this same noise issue? Here is a list of what I did to isolate this issue.
(1) I replaced all of the plugs. Same noise.
(2) used 93 / 92/ 91 octane gas. Did not make a difference same noise.
(3) Replaced the spark plug seals. Not sure if it was oil getting into the engine. No difference.
(4) pcv changed.