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07-16-2011, 12:48 AM | #1 |
Registered User
Join Date: Jun 2011
Location: Milwaukee WI
Posts: 12
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Knock, knock, who's there? Engine trouble.
1986 Suburban, carb, 350, no mods to engine, 72k.
I have a knock at idle @ startup on warm days. It doesn't do it once it's warm. I have replaced Plugs, Wires and Distributor cap (they needed it). No signs of foul play on anything. Running 93 octane gas seems to help. Is it timing? |
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