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Old 06-14-2006, 10:47 PM
Roncallo Roncallo is offline
88Black560SL
 
Join Date: Oct 2004
Location: CT
Posts: 3,538
Quote:
Originally Posted by Vronsky
If it's a bad plug(s), shouldn't the engine run bad all the time??
Nope. Only if they are really bad.

But heres a quick test. You say it runs good after about 10-15 sec. Give it a full throttle acceleration , preferably uphill on a highway, when it's warm and appears to be running good. That will stress the plugs to the max. If it misses under load thats usually plugs.

John Roncallo
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