(goldfish) Posted February 16, 2008 Share Posted February 16, 2008 After about two hrs of stop and stop traffic thurs. my 97 brighton w/ 2.2 and 5mt, now has a higher idle the when I started the drive. It now idles @ 2k rpm until warmed up for a long time and the it idle about 1500 rpm. I had always felt it was a little slow returning to it's normal (about 800 rpm) idle when you clutched it in the past. Could this be a dirty IAC like the other post? Link to comment Share on other sites More sharing options...
ericem Posted February 16, 2008 Share Posted February 16, 2008 Yes it could. It could also be your TPS sensor, doubt it though. I think you can just spray some wd40 or a throttle body cleaner that says it works to clean IAC's safely down this tube on your intake. I did it made my idle return much faster and more consistent. Link to comment Share on other sites More sharing options...
porcupine73 Posted February 16, 2008 Share Posted February 16, 2008 Could also be a vacuum leak. wd40? that doesn't have any silicone in it does it? Link to comment Share on other sites More sharing options...
ericem Posted February 16, 2008 Share Posted February 16, 2008 Could also be a vacuum leak. wd40? that doesn't have any silicone in it does it? nope don't think so. Oh ya your can also use brake cleaner. Link to comment Share on other sites More sharing options...
(goldfish) Posted February 19, 2008 Author Share Posted February 19, 2008 So far the wind chill is a little to low to try, but soon. Thanks Link to comment Share on other sites More sharing options...
porcupine73 Posted February 19, 2008 Share Posted February 19, 2008 If you decide to use brake cleaner, at least go with non-chlorinated. Those typically just contain xylene, toluene, acetone, mineral spirits, etc. Chlorine in the engine is not typically a good idea, which is also why Duralube is not a product I would recommend - chlorinated paraffins which are typically used in metal machining processes. Link to comment Share on other sites More sharing options...
(goldfish) Posted February 26, 2008 Author Share Posted February 26, 2008 I used some CRC "throttle body cleaner?" It started to help, I got normal idle a couple of times. I think I need to go again. What are the recomendations for keeping the car running with all the intake piping off? Link to comment Share on other sites More sharing options...
porcupine73 Posted February 26, 2008 Share Posted February 26, 2008 If you have a MAF, you may have to unplug it to get it to idle with the IACV intake hose unhooked. Link to comment Share on other sites More sharing options...
eagleb Posted January 16, 2010 Share Posted January 16, 2010 Yes it could. It could also be your TPS sensor, doubt it though. I think you can just spray some wd40 or a throttle body cleaner that says it works to clean IAC's safely down this tube on your intake. I did it made my idle return much faster and more consistent. Sorry to dredge up an old thread, but my 96 obw 2.5 is having some P0505 problems, and I needed to know what tube you are referencing on the IAC. History: A couple days ago, the idle on start up was over 2k, and stayed there, then threw p0505, so I took my wife's car. Next day, problem seemed to work itself out. Yesterday, went to started the car, and it proceeded to just rumble and die. Tried starting again, and gave it some gas when it rumbled, then opened the hood and messed with some hoses and the electrical connector to the IAC, now it seems to idle fine. Still would like to clean out the IAC. Where should I check for potential vacuum leaks? thanks, eag Link to comment Share on other sites More sharing options...
johnceggleston Posted January 16, 2010 Share Posted January 16, 2010 Where should I check for potential vacuum leaks? more of a how. spray carb cleaner? or some such stuff all around the black plastic intake tubing and hoses. if there is a leak, it will suck in the spray and the idle should increase. Link to comment Share on other sites More sharing options...
Recommended Posts
Please sign in to comment
You will be able to leave a comment after signing in
Sign In Now