How to adjust idle?
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Joined: Jun 2014
Posts: 164
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From: Ny queens
Car: 87 GTA Trans Am
Engine: 5.7 350 TPI
Transmission: TCI transmission
Axle/Gears: 4th gen rear end. With 3.83
How to adjust idle?
I got my gta 87 trans am to start and it ie really high now. It idles around 3000rpm. Is there anyway I can drop the idle with out making the engine stall?help ASAP !!!
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Joined: Jun 2011
Posts: 2,036
Likes: 5
From: knoxville tn
Car: 86 IROC
Engine: 5.0 TPI
Transmission: 700-R-4
Axle/Gears: 2.73 open
Re: How to adjust idle?
what do you have? carb or FI? please complete your page so we know what you have . till then ,we cant really help you.
Thread Starter
Member
Joined: Jun 2014
Posts: 164
Likes: 0
From: Ny queens
Car: 87 GTA Trans Am
Engine: 5.7 350 TPI
Transmission: TCI transmission
Axle/Gears: 4th gen rear end. With 3.83
Supreme Member
Joined: Jun 2011
Posts: 2,036
Likes: 5
From: knoxville tn
Car: 86 IROC
Engine: 5.0 TPI
Transmission: 700-R-4
Axle/Gears: 2.73 open
Re: How to adjust idle?
is your check engine light on while it was running? if so ,read the codes.that will point you in the right direction as far as what is wrong.dont worry about posting ,we all had to start from somewhere
Joined: Jun 2012
Posts: 114
Likes: 0
From: Howard County, MD
Car: 1987 Trans Am GTA
Engine: Warmed over 350 TPI
Transmission: 700r4 soon to be t56
Re: How to adjust idle?
Well, the first obvious thing to do would be to check the idle set screw, make sure it is set correctly and not stuck/gummed up with dirt.
Supreme Member
Joined: Jun 2011
Posts: 2,036
Likes: 5
From: knoxville tn
Car: 86 IROC
Engine: 5.0 TPI
Transmission: 700-R-4
Axle/Gears: 2.73 open
Re: How to adjust idle?
your throttle body may need a good cleaning. usually the passages leading to the IAC solenoid get caked with carbon deposits. and that alone plays havoc with idle speed. take the air duct off and look at the throttle blades ,if they are black .it may be your problem
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