Date: 25 Sep 1997 23:03:00 -0400 From: kenbellnopsamx.com (Ken Bell) Subject: Re: Idle speed jumped up won't go down? 900S
This happened also on our '88 9000T. I found out by chance that turning off the A/C would "fix" the problem (on the 9000, pressing "ECON" turns off the A/C). The relay contact that carries current to the A/C compressor had melted, thus the compressor was no longer coming on, however the circuitry that increases the engine idle speed to compensate for the A/C load didn't know this. So the idle speed went up without the additional load. I don't know, of course, if this is the cause of your problem. Another common possibility is a vacuum leak, which you say you already checked for. In article <60ca9i$2u2c$1nopsamsvr03-int.news.prodigy.com>, Mr. Joe J. Jakubiak <EGDN97Cnopsamigy.com> wrote: >1986 900S 5 speed. What would cause the idle speed to jump up to >1500 rpm with the engine hot or cold. I changed the oil and filter and >started the car up to check for leaks. It began running very rough >almost as if the dipstick was seated correctly. Turned it off started >it again, and idle jumped way up and has stayed there for 2 days now. >I checked all the vacuum lines anything else I should look at? Or was >this just a coincidence to me changing the oil and something is really >wrong? >Joe J -- Ken Bell :: kenbellnopsamx.com :: (212) 475-4976 (voice) ======== :: syklbnopsam.nasa.gov :: (212) 678-5516 (voice), 678-5552 (fax)
