Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.1 6/24/83; site harpo.UUCP
Path: utzoo!watmath!clyde!bonnie!akgua!whuxlm!harpo!mls
From: mls@harpo.UUCP
Newsgroups: net.auto
Subject: Re: 1981 Buick Detonation Problem
Message-ID: <2788@harpo.UUCP>
Date: Mon, 16-Sep-85 09:08:07 EDT
Article-I.D.: harpo.2788
Posted: Mon Sep 16 09:08:07 1985
Date-Received: Tue, 17-Sep-85 06:21:16 EDT
Sender: mls@harpo.UUCP
Organization: AT&T Bell Laboratories, Whippany
Lines: 8
Nf-ID: #R:utzoo:-595100::72500020:000:337
Nf-From: !mls    Sep 16 09:02:00 1985

I had a similar problem on a 78 Chevy wagon.  It was a stuck EGR
valve.  In the summer time with a humid weather there was enough water
vapor in the air to prevent the pinging.   However in the winter
time the pinging would return.  At light throttle or heavy throttle
there was no pinging.  Hav you tryed a super unleaded?

Irv McNair


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