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#1 |
Registered User
Join Date: Feb 2011
Location: Clear Lake, MN
Posts: 329
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Re: Detonation ping
Thanks for the reply! That's another thing I forgot to add! When I was running the 87 it would almost always "diesel" when I would turn the ignition off. With the 91 it doesn't do that. I will look over all the vacuum lines and devises that are hooked up. Last I checked the heater valve on the manifold was indeed working as should but I'll check again. I'll check plugs. Thanks again
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#2 |
Registered User
Join Date: Jun 2007
Location: Cape Coral, Florida
Posts: 1,123
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Re: Detonation ping
I bought my 86 with 305/700r4 in 2008 at 105k, it currently has 197k and has always pinged for me. I ran 91 when i lived in MD and that helped but not perfect. Timing is 8degrees because less than that I have no power. Since moving to Florida i started running rec89 which is ethanol free and the pinging has gotten much better.
What is the ethanol content where you are? In MD we had 15 percent. Ethanol is a real problem for older vehicles
__________________
1986 Custom Deluxe 10 1978 Caprice 2 door - sold 1937 Chevrolet 2 door sedan - project |
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