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Chris
Chris, Auto Service Technician
Category: Pontiac
Satisfied Customers: 12729
Experience:  43 years of automotive repair, Smog license
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Ive got a 01 pontiac grand am 4 cylinder and it keeps

Customer Question

Ive got a 01 pontiac grand am 4 cylinder and it keeps stalling when I let off the gas. Usually after I go over 3000 rpms. After that coming to a stop or letting off the gas will stall the car
JA: Is the check engine light on? Does the car stall at idle or when driving?
Customer: No light. It stalls when idling.
JA: Are you fixing your Grand Am yourself? What have you tried so far?
Customer: Ive replaced the fuel filter, air filter, and cleaned my carburetor
JA: Anything else you want the mechanic to know before I connect you?
Customer: Not that I can think of
Submitted: 1 month ago.
Category: Pontiac
Expert:  Chris replied 1 month ago.

Hello and welcome to just answer.

. This is usually caused by a throttle body that has become coked up with carbon deposits. When the throttle body gets dirty, then the airflow going around the throttle plate gets restricted. This can cause low or no idle and sometimes stalling when coming to a stop. The other thing it may be is an idle motor that is sticking and cannot react fast enough to maintain an acceptable idle. I recommend purchasing a can of spray throttle body cleaner and clean out the inside of the throttle body. Be sure to clean the throttle plate paying attention to the edges of the plate (follow the directions on the can). If you still have this problem, then replacing the idle motor would be the next step.

Hope this information helps, and let me know if you need more assistance with this,

Chris

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