Question about 1993 Chevrolet Suburban

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Car will start but wont stay on

When I start the truck it comes on but cuts off if I hold the gas down it stay running untill I let go. I think its some kind of modular located underneath the carb or fuel injection system'

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Idle adjustment. You didn't state the vehicle, so I will post two possible solutions.

Fuel injected engines typically have an IAC valve in the throttle body. This valve adjusts the throttle plate to be open to a certain extent. The computer can control this valve as need based on the density of oxygen in the air. Remove the throttle body and clean the IAC valve or replace it if necessary. Mechanical (gas engine) experience necessary.

Carb engines typically have an idle adjustment screw on the exterior that may need adjusted. Mechanical (gas engine) experience necessary.

Posted on Dec 30, 2008

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