Guest jerryjbennett Posted October 31, 2008 Share Posted October 31, 2008 All of a sudden: From the normal 900rpm up to 1400rpm.Last year I had a new head and turbo installed. The carran like a jewel. A couple weeks ago I decided to use the cruise control. Appeared to be good holding 65mph. So I punched it to feal the turbo. Great! Now when starting car the idle is high and continues to bebetween 1400-1500RPM.Got any suggestions where to start looking? Link to comment Share on other sites More sharing options...
Guest LouZ Posted October 31, 2008 Share Posted October 31, 2008 Hi Jerry, Normally all idle functions are controlled by that shuttle valve on the side of the throttle body. It usually needs to be sprayed (Cleaned) occasionally. Link to comment Share on other sites More sharing options...
Bill Reichert Posted October 31, 2008 Share Posted October 31, 2008 <div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: LouZ</div><div class="ubbcode-body">Hi Jerry, Normally all idle functions are controlled by that shuttle valve on the side of the throttle body. It usually needs to be sprayed (Cleaned) occasionally. </div></div>Otherwise known as the AIS (automatic idle Sensor?) Or the butterfly is stuck a little. Pull the throttle body and use a can of tb cleaner with good gloves. Link to comment Share on other sites More sharing options...
TwinCamFan Posted October 31, 2008 Share Posted October 31, 2008 IMO you will have to find which vaccum line you blew off. Add a zip tie around it when you put it back. Check EVERY vac line underhood, even the ones over by the charcoal cannister. Also make sure the lid didn't pop off said cannister...Alan Link to comment Share on other sites More sharing options...
TwinCamFan Posted December 12, 2008 Share Posted December 12, 2008 Any updates here Jerry ? Link to comment Share on other sites More sharing options...
Guest vicsik1969 Posted December 12, 2008 Share Posted December 12, 2008 I changed my PCV valve last year and notice that everytime I punch the throttle, it the hose between the PCV valve and the intake manifold blows off.So, reading this, is that somewhat common? Idle jumps from 850 to the described 1400... Link to comment Share on other sites More sharing options...
TwinCamFan Posted December 12, 2008 Share Posted December 12, 2008 Zip ties are your friend Darren I only kicked this thread up because Jerry sent my a PM that he found the cause of his high idle, a disconnected vacuum line. My reply to him asked him to update his thread with the resolution of the issue,(a pic of the offender would be pretty cool too) otherwise we get questions/sypmtoms for problems but no answers I also mentioned that many list members may be reading along that have not posted, but have encountered similar issues.Alan Link to comment Share on other sites More sharing options...
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