Rebel4055 Posted October 23, 2010 Author Report Share Posted October 23, 2010 Could possibly be a vacuum leak. With engine running take a can of starting fluid and spray along vacuum lines and if theres a noticeable change in idle then you probably found the leak. Also, how has your fuel mileage been since it's been doing this? What about engine power? Alright and good and great Rest In Peace mother. January 22, 1955 - February 14, 2013 http://www.stevemeadedesigns.com/board/user/35351-megrch/ Link to comment Share on other sites More sharing options...
Mosin Posted October 23, 2010 Report Share Posted October 23, 2010 If the mileage and power checks out then I doubt its a MAFS. What kinda engine? 3.1 or 3.4? Derp. Link to comment Share on other sites More sharing options...
Rebel4055 Posted October 23, 2010 Author Report Share Posted October 23, 2010 If the mileage and power checks out then I doubt its a MAFS. What kinda engine? 3.1 or 3.4? 3.1. Rest In Peace mother. January 22, 1955 - February 14, 2013 http://www.stevemeadedesigns.com/board/user/35351-megrch/ Link to comment Share on other sites More sharing options...
Mosin Posted October 23, 2010 Report Share Posted October 23, 2010 Have you always had this high idle problem? I know some older GM vehicles idle a lil higher in park then in drive. Might be normal. If this is something that recently started then I'd look into vacuum lines. Also make sure all electrical connectors under hood are properly connected. Any wires look really worn out/broken? Derp. Link to comment Share on other sites More sharing options...
Rebel4055 Posted October 23, 2010 Author Report Share Posted October 23, 2010 Have you always had this high idle problem? I know some older GM vehicles idle a lil higher in park then in drive. Might be normal. If this is something that recently started then I'd look into vacuum lines. Also make sure all electrical connectors under hood are properly connected. Any wires look really worn out/broken? Been doing it ever since we got it I'm guessing it's normal too. I looked all over the engine all the wires seem fine. Rest In Peace mother. January 22, 1955 - February 14, 2013 http://www.stevemeadedesigns.com/board/user/35351-megrch/ Link to comment Share on other sites More sharing options...
Mosin Posted October 23, 2010 Report Share Posted October 23, 2010 It wouldn't hurt to check the vacuum lines for reassurance if you needed it though. Derp. Link to comment Share on other sites More sharing options...
toytrkdrvr Posted October 24, 2010 Report Share Posted October 24, 2010 Could possibly be a vacuum leak. With engine running take a can of starting fluid and spray along vacuum lines and if theres a noticeable change in idle then you probably found the leak. Also, how has your fuel mileage been since it's been doing this? What about engine power? IF you do this be carefull where you spray as the starting fluid is flammable and could start a fire. I'd use water, you get the same result only the engine will chug more and want to die out, instead of the idle going higher when using starting fluid if you have a leak. Link to comment Share on other sites More sharing options...
Mosin Posted October 24, 2010 Report Share Posted October 24, 2010 I'd rather have something that evaporates/burns quickly in my intake/motor compared to water. Water in an engine is a VERY bad thing. My .02 Derp. Link to comment Share on other sites More sharing options...
Rebel4055 Posted October 24, 2010 Author Report Share Posted October 24, 2010 I'd rather have something that evaporates/burns quickly in my intake/motor compared to water. Water in an engine is a VERY bad thing. My .02 The only noticeable thing I seen as far as vacuum lines the boot on the PCV was cracked. I really gotta make a video lol Rest In Peace mother. January 22, 1955 - February 14, 2013 http://www.stevemeadedesigns.com/board/user/35351-megrch/ Link to comment Share on other sites More sharing options...
white4d96 Posted October 24, 2010 Report Share Posted October 24, 2010 If it's the L82 (3100 SFI V6 on the intake manifold?) mine does it too. Think it's just a normal thing. My neutral idle is like 800 and in a gear it drops very noticeably. Too many projects, too little time... Link to comment Share on other sites More sharing options...
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