most common problem causing a surge while a car idles is the MAF-Mass Air Flow sensor is contaminated. typically this will throw a code (check engine light aka MIL)
To adjust the idle on a Buick Roadmaster, first, ensure the engine is at operating temperature. Locate the idle adjustment screw on the throttle body or carburetor, depending on your model year. Turn the screw clockwise to raise the idle speed or counterclockwise to lower it, checking the RPMs with a tachometer. After adjustments, make sure to recheck the idle speed and ensure it is within the manufacturer's specifications.
A rough idle and stalling in a 1994 Buick Roadmaster can be caused by several issues, such as a dirty or failing idle air control valve, a malfunctioning mass airflow sensor, or vacuum leaks in the intake system. Additionally, check the fuel system for clogged fuel filters or failing injectors. Ignition system problems, such as worn spark plugs or faulty ignition coils, can also contribute to these symptoms. Conducting a thorough diagnostic can help pinpoint the exact cause.
what is the down side of the 1997 buick park avenue
choke idle adjustment on 1988 Buick Riviera
had tune up on 1992 buick 350 new plugs cap wires still idleing rough
fuel pressure injector pulse idle air control motor
To adjust the idle on a 1992 Buick Regal GS, first locate the idle air control (IAC) valve, typically found on the throttle body. Start the engine and allow it to warm up to normal operating temperature. Then, adjust the idle speed by turning the IAC valve's adjustment screw while monitoring the engine's RPM; aim for the manufacturer's specified idle speed, usually around 600-800 RPM in gear. Always double-check your adjustment by letting the engine idle and ensuring it runs smoothly.
won't idle
try to adjust the distributor.
1500 at first until it kicks down to 850 rpm
you will have to replace the trottle possitioning sensor (TPS) THIS WILL SOLVE YOU PROBLEM
First you must check the ISC motor ( idle speed control) operation. Its located by the throttle body. It controls idle and high idle speeds. Good luck