Question about Buick Park Avenue
Hi, if the car runs fine while driving and cuts off ONLY when you are idling (foot completely off the gas pedal and RPM's at idle speed) then your idle air control valve my need adjusting or need to be replaced, or idle air passage make have been blocked off by excessive carbon build-up. If build-up is the problem, a good removal and cleaning will do the trick or an off the shelf spray cleaner may get the job done as well.
Could also be clogged fuel injection system. Try a fuel treatment with a full tank of gas. If a older model GM front wheel drive it could be the lock-up solenoid on the transmission. or it could be a stopped up catalytic converter on about any make and model. First thing id do is check and change the fuel filter, its usually checked by blowing air through it (in the arrow direction) if no air flows through or it blows through slowly then its more than likely plugged change it and go from there. sometimes after all avenues have been followed and the problem still exists i have seen the sock on the fuel pump be plugged and do the same. it will run great while accelerating but stall at idle due to not enough fuel pressure.
It could be a problem with the car not getting enough fuel, or it may have something to do with one or more of the sensors, such as the Mass Airflow Sensor. Is your check engine light on? If it is then its most likely a faulty or dirty sensor.
A clogged Catalytic Converter will also not cause this problem.
Posted on Oct 14, 2010
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Posted on Jan 02, 2017
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