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 1989 3.0 V6 idle issues
#995975
05/05/10 10:29 PM
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Joined: Feb 2009
Posts: 77
OP
Getting the Wheeling Fever
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I knew a 21 year old vehicle was going to need a few things. There is an issue with idle. when I first start the car cold it will idle high 1400-1800 rpm. After it warms up it will idle very low 300-500 rpm and will cut out some times. I did some searching and I would suspect the idle speed control servo. any suggestions?
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Re: 1989 3.0 V6 idle issues
[Re: Randy_NC]
#995976
05/05/10 10:58 PM
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Joined: Jan 2001
Posts: 13,649
Web Wheeler
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Probably. Check out dsmisc.com for a decent price on the improved isc.
Not responsible for advice not taken...
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Re: 1989 3.0 V6 idle issues
[Re: fasteddy]
#995977
05/05/10 11:12 PM
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Joined: Feb 2009
Posts: 77
OP
Getting the Wheeling Fever
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it's not real clear on dsmisc.com's website which one fits my car.
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Re: 1989 3.0 V6 idle issues
[Re: Randy_NC]
#995978
05/05/10 11:52 PM
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Joined: Jan 2001
Posts: 13,649
Web Wheeler
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call/email them and see what they say. IIRC, it's the 3.0 stealth model.
Not responsible for advice not taken...
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Re: 1989 3.0 V6 idle issues
[Re: fasteddy]
#995979
05/06/10 02:18 AM
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Joined: Apr 2007
Posts: 60
Getting the Wheeling Fever
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Score! The good info just keeps coming. Thanks for the dsmisc.com tip.
ToyHooter
90 LWB Montero
Sliders, Dual Bouncies, K&N, Flowmaster, Rancho Stabalizer, KYB Gas Adjusts,
ARB Compressor Under Hood, ARB Locker Waiting Garage Floor, Spare Tire Bike/CB Ant Mount
"I didn't do it, you didn't see me, you can't prove it."
Bart Simpson
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Re: 1989 3.0 V6 idle issues
[Re: toyhooter]
#995980
05/06/10 03:41 AM
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Joined: Jan 2001
Posts: 13,649
Web Wheeler
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Yeah, they sell the improved all black plastic version that seems to be more durable. Make sure you get the oring, too...
Not responsible for advice not taken...
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Re: 1989 3.0 V6 idle issues
[Re: fasteddy]
#995981
05/06/10 03:52 AM
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Joined: Mar 2003
Posts: 2,324
Body Damage is Cool
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I got my lastest ICS from NAPA for like $110. It's the improved plastic one and may even be a repacked OEM <img src="/forums/images/graemlins/kewl.gif" alt="" />
dave h.
'89 Raider V6 5spd;Aisin Hubs;; Gen2 LS: frt. brakes, rear coils;U.C.arms;R.trailing arms;idler arm; rear LSD axle w.disc brakes ;2 battery system for Dog's fan; relocated ECU; custom bumpers;J.Baker receiver;Conferr roofrack; t-bar crank.
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Re: 1989 3.0 V6 idle issues
[Re: KrzyDav]
#995982
05/06/10 08:04 AM
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Joined: May 2009
Posts: 435
Mudrunner
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before purchasing extras I would check for
vacuum leaks
good connection on the coolant temp sensor
proper adjustment of the tps
clean connections on the Idle stepper motor
 Karma's Law - For every action there is a multiplied reaction! 93 Pajero GLS 3.0 V6 LWB - SOLD 2001 Gen3 Di-D LWB - SOLD 2005 Touareg R5 2.5 TDi
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Re: 1989 3.0 V6 idle issues
[Re: 4ePikanini]
#995983
05/06/10 05:25 PM
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Joined: Jan 2001
Posts: 13,649
Web Wheeler
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vacuum leaks-would cause high, not low, idle speed
good connection on the coolant temp sensor-base idle speed is too low as it is, and should be reset to about 650rpms with the isc disco'ed
proper adjustment of the tps-should make no diff except for the idle position switch, if any
clean connections on the Idle stepper motor-this is a maybe, but not as likely as the fried isc. I'd do the resistance tests before I bought a new one just in case
Not responsible for advice not taken...
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Re: 1989 3.0 V6 idle issues
[Re: fasteddy]
#995984
05/21/10 02:57 PM
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Joined: Aug 2009
Posts: 23
Need a Spot
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i have a recently revived 91 3.0 LWB that i got an emission waiver sticker for this year in PA, but it idles high all the time, and the local chain shop couldn't figure out how to adjust it...plus the exhuast emissions are noxious, and will make me sick if i drive it for extended periods of time. tips? are the two related?
91 two-tone LWB 5-speed, sunroof, third row seat, 31" wrangler authority's on black cragar soft 8's.
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