Just replaced my wifes IAC on her '94 Jeep GC (4.0L)...over 100K miles
as well. The idle was pretty bad and the A/C wouldn't kick up the idle
either...replacing the sensor fixed it.
- Bernd
-----Original Message-----
From: owner-dakota-truck@dakota-truck.net
[mailto:owner-dakota-truck@dakota-truck.net] On Behalf Of
raymond.irons@gm.com
Sent: Monday, August 12, 2002 6:09 AM
To: dakota-truck@dakota-truck.net
Subject: DML: OT: Jeep Cherokee rough idle
Hey Ya'll,
I know its off topic, but I'm in need of a little help. I
got a friend of mine that has a 1996 Jeep Cherokee 4WD, 4.0L, Auto. The
truck has about 112K miles on it and he has been complaining of rough
idle. He was gonna take it to the stealer for a check and the service
bandit ,errr I mean writer, told him it was probably the IAC and would
need to be replaced, at a charge of about $150. I had him come over to
my house Friday evening so I could work on it. I pulled the TB, cleaned
it, removed the IAC valve and cleaned it, replaced the TB and it ran
fine. Total cost about $5 for the gasket, TB cleaner and electrical
contact cleaner. He told me this morning it ran fine till Saturday
evening then it started doing the same thing again. The IAC did have a
good deal of gunk on it when I pulled it. The "O" ring looked to be in
good shape and I made sure it was installed when I re-installed the
valve. There did seem to be a small amount of gunk in the TB bore
itself, but I got it pretty clean and even took compressed air and blew
it out. I set the air regulator for about 25 PSI so I wouldn't really
blow it away. I also sprayed each one of the electrical connectors, IAC,
TPS, with contact cleaner. I'm wondering if even though I cleaned the
IAC, is it possible the valve itself may be bad and needs to be
replaced? While I was under the hood, I did look around for vacuum
leaks, loose connectors and I didn't find anything. I really don't want
to tell this guy to spend $50 for a new IAC if its possible the problem
is someplace else. Any and all suggestions would be greatly appreciated.
TIA
Ray Irons,
Dover, DE
This archive was generated by hypermail 2b29 : Fri Jun 20 2003 - 12:05:13 EDT