Author Topic: What causes high idle? (Read 1871 times)

bobg · « **on:** May 16, 2010, 01:44:15 AM »

Anyone have any suggestion as to why the high idle stays on on my 1995 Chevy Lumina? The high idle selinoid has been changed. The throttle body removed and it and all the ports cleaned out. The temperature sensor has been replaced. We are now thinking vacuum leak but so far haven't found one yet. Any ideas folks?

bobg

Lloyd Smale · « **Reply #1 on:** May 16, 2010, 02:57:28 AM »

vaccum leak could do it. Also did you ever clean the idle air control valve?

bobg · « **Reply #2 on:** May 16, 2010, 03:42:01 AM »

Forgot than one Lloyd. That was changed also. Hope this doesn't show up twice. I answered you once but i don't see my reply anywhere?

mechanic · « **Reply #3 on:** May 16, 2010, 03:46:36 AM »

Anyone check the TPS? (Throttle position sensor). Toyota's have had some "high idle" problems of late too..........

bobg · « **Reply #4 on:** May 17, 2010, 02:16:31 AM »

Don't think the TPS was checked. My mechanic told me to take it to a guy here in town. Said he was probably the best Chevy man in this area.

bobg · « **Reply #5 on:** May 17, 2010, 06:27:15 AM »

You were right mechanic. It is the TPS. Have one ordered. Going to put it on Friday. Thanks for the suggestions guys.

Dee · « **Reply #6 on:** May 17, 2010, 08:15:10 AM »

This thread just goes to show, that if you have a question, or a problem, someone here has an answer, or solution, and is willing to share the info.

bobg · « **Reply #7 on:** May 18, 2010, 02:19:54 AM »

You have that right Dee.

. I always get answers and most of the time they are correct answers. I have ask one question that i did not get an answer to. who knows maybe i didn't word it right and no one knew what the heck i was asking.

bobg · « **Reply #8 on:** May 22, 2010, 12:21:53 PM »

Put the tps on yesterday. The idle is now down where it belongs.

Lloyd Smale · « **Reply #9 on:** May 23, 2010, 03:12:51 AM »

glad you got it figured out.