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GT-40 pulsating idle Printed From: CorrectCraftFan.com Category: Repairs and Maintenance Forum Name: Engine Repair Forum Discription: Engine problems and solutions URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=19308 Printed Date: May-05-2024 at 3:06pm Topic: GT-40 pulsating idle Posted By: papajohn Subject: GT-40 pulsating idle Date Posted: September-02-2010 at 11:05pm Have a 2000 SN with GT-40. Idle pulsates from 550-950 rpm about every second or 2. Runs great under power. I read all posts and replaced the IAC with a new one. No difference. Checked all connections, all plugs, reset large computer plug, no difference. I noticed when I took off the IAC , there are two large holes in the throttle body that matches up to the holes in the IAC. There is a mesh screen in one of the those holes. Could that be clogged up? Any help would be greatly appreciated. This is driving me nuts. Replies: Posted By: kapla Date Posted: September-03-2010 at 12:12am hey there check this post on similar issues http://www.correctcraftfan.com/forum/forum_posts.asp?TID=19007&title=pcm-gt40-engine-hunting-at-low-revs - similar ------------- <a href="">1992 ski nautique

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