Carburetors Carb discussion and questions. Upgrading your Third Gen's carburetor, swapping TBI to carburetor, or TPI to carburetor? Need LG4 or H.O. info? Post it here.

high idle

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Old 03-07-2007, 09:01 PM
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Car: 2012 Ram express
Engine: 5.7 hemi
Transmission: auto
Axle/Gears: 3.55
high idle

when i first start my car it idles at 2000 when i try to turn the curb idle screw to set idle it wont go down past 1500. Does the choke have to be fully open to set idle?
Old 03-07-2007, 09:25 PM
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Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
There is a high idle cam tied to the choke (you can see a green weight on the passenger side of the carb - that's the other end of the high idle cam), and the normal curb idle adjustment. Sounds like you're trying to adjust the curb idle while the high idle cam is still engaged.

When the choke is fully opened and the throttle brought off-idle, the green weight drops down, disengaging the high idle cam.
Old 03-07-2007, 09:27 PM
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ok thanks im new to carbs but i have a basic understand i just tend to play with things before reading up on them
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