Quote:
Originally posted by dschrier
I was refering to the sound of a diesel engine, as that is what some people say pinging in a car sounds like when you have the timing set too high, not the car actually pinging. I believe my car pings due to a timing, fuel related problem as that it seems to make this noise when I run 87 or 89 octane but goes away with 93 octane, which would make me assume it is a ping associated with advanced timing etc. But sometimes it makes the sound while going up a hill while using 93 octane gas which makes me think that something else is wrong besides advanced timing, maybe a bad egr valve purhapse?
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sorry, was eating yogurt when read your post... lost attention...
yeah try cleaning your the whole egr system. do you have the actual timing advanced?