Iggy Posted August 2, 2020 Share Posted August 2, 2020 I just did a 7 day trip doing about 150 miles. Not sure if that matters, but anyways. The day before leaving I was at the gas dock. I restarted (I have twin 4.3L ) the engines. I put the port engine in gear and had a small bang from the drive engaging. I first thought drive problem and noticed that engine was at 1800 RPMs. The next day, Saturday made it home with no problems, both engines ran great. Today, after a little reading went after the IAC unit. Mainly I was reading no start or stalling. I pulled the IAC unit off the starboard engine, installed it in the port engine and now it idles fine. Just though I would mention it since everything I read never mentioned high idle. So new IAC!! Quote Link to post Share on other sites
cyclops2 Posted August 2, 2020 Share Posted August 2, 2020 Your problem seems to be random ? Are both engines now perfect. I Have Done a advanced throttle shift by accident. ..... Have your linkages checked for sticking. Or looseness. A loose gear shift will allow advancing throttle without the perfect throttle tracking. Had 1 of those. Quote Link to post Share on other sites
Iggy Posted August 3, 2020 Author Share Posted August 3, 2020 23 hours ago, cyclops2 said: Your problem seems to be random ? Are both engines now perfect. I Have Done a advanced throttle shift by accident. ..... Have your linkages checked for sticking. Or looseness. A loose gear shift will allow advancing throttle without the perfect throttle tracking. Had 1 of those. I am waiting for the new part to come in. So the port engine works good now. Quote Link to post Share on other sites
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