Question about 1986 Chevrolet Sprint

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Chevrolet sprint 1986 idling high trying to find the

Chevrolet sprint 1986 idle high trying to find the idle adjust screw does anyone know where to find it?

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If the vehicle is a carborated engine, you would find your vehicles throttle body where the linkage connects for your acceleration. Most engines then have the idle screw very close to this linkage. Though from what little photo's I have seen of the vehicles engine compartment via google images. I unfortunately can not direct you as to where the throttle body on the engine is located.

Posted on Apr 14, 2009

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328 gts 1986 very rough idle, running rich you can smell the gas from the exhaust . runs fine once the throttle is pressed


you need to adjust your idle screw on your carb i could tell ya how on that type of car but your running to high of an idle and flooding your cylinders thats y it is idleing rough and you can smell the gas, adjust your idle screw back a little and then you might want to check your plugs and make sure you didnt fowl and of them with it running rich

Apr 21, 2011 | Ferrari 328 Cars & Trucks

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My 1988 chevy sprint runs rough when i start it then idles at about 2000 rpm after several minutes and stays at that high idle. i have tried to fix it several times with arebuilt carburetor new plugs cap...


i have the same car and mine does the same thing i think its a common problem for the car does yours stall out after roughly 15 minutes after just sitting at idle ?

Nov 04, 2010 | 1988 Chevrolet Sprint

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I am looking the idle adjustment screw on my 1971 350 cu. in. El Camino Carburator


Remove the air cleaner to access the carburetor.
Note the right side of the carburetor where the accelerator cable is connected.
The cable is connected to the accelerator cam which is stopped by the idle set screw.
The Idle adjustment screw head is pushing down on a spring, which should help Identify the correct adjustment screw.
Be careful not to adjust the smaller mixture screws, unless you have a vacuum gage.
If your Idle is too high you may get after run or knocking. I would set the timing then adjust the idle afterwards.
I hope this helps out since I do not know if the carburetor is stock or not.

Jul 28, 2010 | Chevrolet El Camino Cars & Trucks

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Idle issues with 96 Chevy cavalier 2.2L OHV. everytime i try to adjust RPM's i get idle too high code. after doing research found that stop screw on throttle is factory set and should not be messed with,...


WHEN YOU MOVE SCREW YOU CHANGE TPS VOLTAGE READINGS YOU WILL NEED TO MONITOR TPS VOLTAGE AND ADJUST BACK TO SPECS DONT KNOW EXACT BUT SHOULD BE AROUND .50 AT IDLE

Mar 17, 2010 | 1996 Chevrolet Cavalier

2 Answers

Idle get very high when turn on AC.


Is these a carburated engine or fuel injected?If it is a carburated,look for adjustment on the throttle,near the linkage,back it off the throttle until desired rpm.

Aug 07, 2009 | 1986 Chevrolet Sprint

1 Answer

Idle speed adjustment


While looking at the engine from in front of the car with the hood up..
Locate the TBI assembly ( follow the air intake tub from the cor support back. It leads directly to it ). Next look on the lower left side of the TBI just above the throttle linkage connection to the TBI.
you will see what looks like a little molded bullet sticking off the side with a screw sticking out of it making contact with the linkage assembly. On the back side of that little bullet you will see a torques head type screw head. adjust that forwards to increase idle speed or back it off to lower idle.
If you have a high idle condition the chances are it is not due to the idle set screw. Its more then likely either deteriorated vacum lines, deteriorated TBI gasket or a bad Air Idle Control Motor ( IAC ).
If you adjust the screw and nothing happens worth noting then check the vacum lines and replace. If nothing happens still then change the TBI gasket where it mounts to the intake.
If that doesnt do it then your left with the more costly option of changin out the IAC for a new one. They run from $75 - $125 depending on where you shop.
If after you change the IAC and it is still acting out then you may have an intak emanifold leak, or a head leak.

Oct 25, 2008 | 1986 Chevrolet Cavalier 2 Door

1 Answer

Rpm running high when park


well. your idle is just high. you can get a screw driver and find the idle screw on the throttle body. . and jsut adjust there , , that is if there are no problems.

now it also maybe a leaky intake. . . . but i think its jsut more of a small adjsutment. . 8)

Oct 22, 2008 | 1985 Chevrolet S-10 Blazer

1 Answer

89 tracker high idle


not sure what LSD is , ?

but on this car.
one of the below are wrong.

Dashpot stuck on.
Air leaks anywhere in the intake system.
ISC stuck wide open.
or Throttle plate screw was cranked in too far.


Jul 06, 2008 | 1989 Geo Tracker

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