High humidity = high idle

azbobbybooshay10 · 05-24-2008, 03:12 AM

We've had a huge batch of rain over the last 2 days and today I finally drove the car after replacing the PS pump and alternator. I've noticed this in the past, but still don't know what the problem is. Whenever the humidity is high, whenever I push the clutch or put it in neutral, the revs come up to almost 3000rpms. It will do this constantly until the humidity drops back down. I've already changed the DPFE sensor, cleaned the UIM/LIM. What else could be doing this? Like I said, it ONLY does it when the air is very moist. In dry weather it runs fine.

LinkMan · 05-24-2008, 11:29 AM

How's the IAC valve? My past high idle issues were due to a sticking or beginning to fail IAC valve. Not sure what humidity would do though

unless the dampness causes it to stick or something.

wadespencer99 · 05-24-2008, 02:12 PM

You still getting the racecar idle too there bobbo?

Have you changed the IACV? If not, I have a couple extras.

azbobbybooshay10 · 05-24-2008, 03:23 PM

Quote:

Originally Posted by wadespencer99

You still getting the racecar idle too there bobbo?

Have you changed the IACV? If not, I have a couple extras.

No, the racecar idle went away after I changed the DPFE. And no, I haven't changed the IACV yet.

05-24-2008, 11:29 AM	#2 (permalink)
LinkMan Won't settle 4 quick fix Join Date: Feb 2001 Location: Hilliard, OH Posts: 3,093 Images: 11	Re: High humidity = high idle How's the IAC valve? My past high idle issues were due to a sticking or beginning to fail IAC valve. Not sure what humidity would do though unless the dampness causes it to stick or something. __________________ Mark (AIM:LaserRedCat) 2001 Laser Red Cougar* V6 ATX (99 Rio Red R.I.P.)* * Ohio NECO * When I'm in my car, I look good. CF 2005 Best Stock - CF 2006 Best Paint (tie) / 2nd Cleanest - CF 2007 Cleanest Cougar - CF X 2nd Cleanest 1998 T.Red Contour* V6 ATX* FCO Thinkin' I need four doors. Still not working... 1997 Medium Willow Taurus* 3.0 OHV ATX* TCCA I just maintain it for the wife 1993 Bright Red Tempo* 2.3 ATX* Kept Laser Red's paint shiny RIP 23 Nov 2007

05-24-2008, 02:12 PM	#3 (permalink)
wadespencer99 www.cagerattle.com Join Date: Oct 2003 Location: Wellsboro, Pa Posts: 13,147 Images: 6 Blog Entries: 2	Re: High humidity = high idle You still getting the racecar idle too there bobbo? Have you changed the IACV? If not, I have a couple extras. __________________ CFX 1st Place Mild ------------------------------------------------------------

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