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Re: 1998 Cobalt 220

Posted: Mon Nov 21, 2022 8:05 am
by AsLan7
RSoo1 wrote: Mon Nov 21, 2022 7:26 am Quick update on the stalling issue: I had a mechanic look at it, he noticed the engine was never coming up to temp. The thermostat was stuck open. Not getting to operating temp was causing the computer to adjust the fuel mixture. Replaced the thermostat and took it out yesterday, I got another 700 RPMs on the top end and the acceleration stumble improved as I drove it around. New spark plugs are in, the old ones were foiled due to the rich mixture.
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Nice follow-up RSoo1. So is she running’s 100%?

Re: 1998 Cobalt 220

Posted: Mon Nov 21, 2022 3:37 pm
by SAB220
Proves the point that if a part is replaceable on a 20 year old boat, and reasonable in cost, you would be wise to replace it. This includes rebuilding the outdrive and the gimble if yours is 20 years old.