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Reload this Page Bad throttle body?

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Old 11-08-2009, 06:13 PM   #1
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Join Date: Dec 2008
Location: Windsor, California
Posts: 105
Car: 1986 Iroc-Z, 1980 Cadillac Eldorado
Engine: Iroc- 5.0, Caddy-5.7
Transmission: 700R4
Axle/Gears: 3.23

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Bad throttle body?
I was looking at my throttle body today on my 86 Iroc and I noticed that the return spring on the side where the throttle cable hooks up to it looks to be kind of "unwound." The place where the spring is mounted is kinda loose and wiggly as well. Is my throttle body shot? Is that why I've been having trouble with the idle and why when I stop, it'll idle at 1000 until I just tap the gas extremely lightly? I adjusted the tps and the iac is new. Thanks.

Is there any way to fix it or do I need to replace the whole unit? If I do, is a 52mm safe?
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Old 11-08-2009, 07:44 PM   #2
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Join Date: Sep 2007
Location: Bastrop, Tx
Posts: 132
Car: 87 Iroc-Z
Engine: 305 tpi
Transmission: 700-r4
Axle/Gears: 3.42

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Re: Bad throttle body?
Yes it is shot, just go to a junk yard and get a stock style one. when i went i found a 58mm and got it for 40 bucks and made my car run like crap so i went back and got a stock one. stay stock it flows plenty.
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Reload this Page Bad throttle body?
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