Cleaned carb and now it idiles high.
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Joined: Nov 2005
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Car: 87 firebird
Engine: 305
Transmission: 700r4
Cleaned carb and now it idiles high.
Cleaned ccQ-jet on sat. and it idiles at 1200. Used the claener in a can, sprayed the outside and a few squirtes in the front barrells. What is the problem?
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: Cleaned carb and now it idiles high.
Is it idling high while it's warm or while it's cold?
Thread Starter
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Joined: Nov 2005
Posts: 136
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Car: 87 firebird
Engine: 305
Transmission: 700r4
Re: Cleaned carb and now it idiles high.
Actually, it does it all the time now. When warmed and cold. It acts like it stuck on part throttle cuz I can tap it like on cold mornings and the rpm will go to 650. But, as soon as I start driving it will shoot back up to 1200 and stay stuck there all the time now. If I'm at a red light or stop sign, its always 1200.
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Joined: Jan 2000
Posts: 20,981
Likes: 11
From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: Cleaned carb and now it idiles high.
Is your choke open or closed when it idles high?
Thread Starter
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Joined: Nov 2005
Posts: 136
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Car: 87 firebird
Engine: 305
Transmission: 700r4
Re: Cleaned carb and now it idiles high.
When cold its closed but as soon as I turn the car on it opens. Even when warm the front barrells are open and the choch linkage is all the way down.
Joined: Sep 2007
Posts: 598
Likes: 2
From: Hampton, Virginia
Car: 87 Camaro Z-28
Engine: 305 LG4 w/ E4ME carb
Transmission: 700R4
Axle/Gears: 2.73
Re: Cleaned carb and now it idiles high.
my car's idle recently stayed high like yours. the electric choke wire came off. the choke looked open but linkage was stuck. the fix was to reconnect electric choke wire and press down 1x on large choke cam until the choke came unstuck
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Joined: Nov 2005
Posts: 136
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Car: 87 firebird
Engine: 305
Transmission: 700r4
Re: Cleaned carb and now it idiles high.
The wire is on, maybe the wire got wet but I will try that tonight and see what happens. thanks
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Thread Starter
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Joined: Nov 2005
Posts: 136
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Car: 87 firebird
Engine: 305
Transmission: 700r4
Re: Cleaned carb and now it idiles high.
Tried that and nothing still the same. Adjusted the choke counterclock wise and now it idles at 1700. Will put choke back becuse now it wastes more gas
Joined: Mar 2000
Posts: 43,187
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Thread Starter
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Joined: Nov 2005
Posts: 136
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Car: 87 firebird
Engine: 305
Transmission: 700r4
Re: Cleaned carb and now it idiles high.
Maybe, do u know where I can find a choke besides a junkyard. I have been calling to dealerships and they are discontinued.
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Joined: Nov 2005
Posts: 136
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Car: 87 firebird
Engine: 305
Transmission: 700r4
Re: Cleaned carb and now it idiles high.
Choke is fine. Was looking at it after work with my brother and he found the solenoid on the throttle bracket was bad. he disconnected it and it idles fine. Is the solenoid adjustable? Will post pics of solenoid later.
Joined: Mar 2000
Posts: 43,187
Likes: 45
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
https://www.thirdgen.org/forums/carb...e-rebuild.html , figure 6C1-8I. A/C idle solenoid. It should only be powered when the A/C or defrost is on.
Thread Starter
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Joined: Nov 2005
Posts: 136
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Car: 87 firebird
Engine: 305
Transmission: 700r4
Re: Cleaned carb and now it idiles high.
If I barely tap the throttle it will stay stuck in that position at a high idle. No matter what I do it stays like that.
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