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 weird idle...
#771918
12/13/06 09:32 PM
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Joined: Oct 2006
Posts: 469
OP
Mudrunner
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all right. i got a new question. my trucks idle has gone crazy. ill fire it up, and it will do the normal high idle to warm up. thats about where the normalcy ends. the idle varies anywhere from 600 rpms to 1200 rpms. before this started, i pulled off the throttle body and cleaned it, and im not sure if this could be what caused it. since then, i have checked the adjustment on the tps, and checked the throttle body over. any ideas? <img src="/forums/images/graemlins/confused.gif" alt="" />
formerly 277000_yota Old enough to know better, but still to damn arrogant to care... ]www.cardomain.com/ride/2614269'90 'Yota 4X4 (10/31/05-09/10/08 R.I.P) '98 'Yota t-100. 3.4, 5 sp. 4x4, 2 in. Toytec with BFG A/T 265/70R16s
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 Re: weird idle...
[Re: IceBlueT]
#771919
12/13/06 10:17 PM
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Joined: Jun 2003
Posts: 3,576
Roll Me Over
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>>>*Check your coolant level?...*EB
*Beats the he** outa me!....*LOL**...
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Re: weird idle...
[Re: IceBlueT]
#771920
12/14/06 02:44 AM
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Joined: Jul 2006
Posts: 139
Wheeler
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Yeah, I agree with EB, I'd wager your coolant level is affecting your IAC and thus causing your idle to fluctuate.
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Re: weird idle...
[Re: VanillaTHUNDA]
#771921
12/15/06 07:48 PM
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Joined: Feb 2004
Posts: 164
Wheeler
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'87 4Runner
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Re: weird idle...
[Re: Chunky]
#771922
12/15/06 07:56 PM
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Joined: Oct 2006
Posts: 469
OP
Mudrunner
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coolant level is fine. is the IAC the Idle Air Controller?
formerly 277000_yota Old enough to know better, but still to damn arrogant to care... ]www.cardomain.com/ride/2614269'90 'Yota 4X4 (10/31/05-09/10/08 R.I.P) '98 'Yota t-100. 3.4, 5 sp. 4x4, 2 in. Toytec with BFG A/T 265/70R16s
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Re: weird idle...
[Re: Chunky]
#771923
12/17/06 08:03 AM
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Joined: Jul 2006
Posts: 139
Wheeler
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IAC is the idle air control valve. Basically it's a valve mounted onj the throttle body that lets extra air bypass the throttle plate until the engine warms up. It's usually controlled by a thermo sensor.
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Re: weird idle...
[Re: VanillaTHUNDA]
#771924
12/17/06 02:46 PM
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Joined: Mar 2003
Posts: 433
Mudrunner
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<img src="/forums/images/graemlins/confused.gif" alt="" /> Did you use a new gasket,are all nuts and bolts tightened,did you accidently pull the air intake hose loose somewhere before the tb?When they say check the coolant,you need to have the front of the truck raised up with the rad cap off,heater on,and run the motor.Watch for air escaping from rad.Good luck,hope you solve your problem! <img src="/forums/images/graemlins/cheers.gif" alt="" />
87'4runner-22re,5spd
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Re: weird idle...
[Re: solarcrew]
#771925
12/18/06 12:16 AM
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Joined: Oct 2006
Posts: 469
OP
Mudrunner
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<img src="/forums/images/graemlins/confused.gif" alt="" /> Did you use a new gasket,are all nuts and bolts tightened,did you accidently pull the air intake hose loose somewhere before the tb?When they say check the coolant,you need to have the front of the truck raised up with the rad cap off,heater on,and run the motor.Watch for air escaping from rad.Good luck,hope you solve your problem! <img src="/forums/images/graemlins/cheers.gif" alt="" /> We didnt use a new gasket, but we did replace it with a bead of silicone sealer. we did tighten down the bolts, and i have checked them multiple times. also, when i replaced the fuel pressure damper, we flushed the cooling system, and put fresh in. that was in january, so ya. idk. im going to check the IAC tomorrow, when im in class, and i think im going to check about replacing the throttle body gasket. thanks. <img src="/forums/images/graemlins/cheers.gif" alt="" />
formerly 277000_yota Old enough to know better, but still to damn arrogant to care... ]www.cardomain.com/ride/2614269'90 'Yota 4X4 (10/31/05-09/10/08 R.I.P) '98 'Yota t-100. 3.4, 5 sp. 4x4, 2 in. Toytec with BFG A/T 265/70R16s
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