Question about 2002 Buick Century

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The car stalls at low speed and high speed. 3 diagnostic exams at the mechanic's reveals nothing. Please help.

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First, is the check engine light on? If not, then there are several possible causes to your problem. The problem could be in transmission (Torque converter clutch circuit is malfunctioning and would cause a stall at low and high speeds), your catalytic converter is plugged, fuel filter is clogged with impurities and your distributor and components may require replacement. The distributor can be deemed damaged if there are numerous arcing marks on it (bad). Fuel filter could be clogged due to bad gas. You could try a fuel system treat, a cheap alternative.

Posted on Jan 04, 2011

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Posted on Jan 02, 2017

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I would look at the Idle Speed Motor, TPS Sensor,even vacuum leaks,Egr Valve.
Don't know your veh systems, Hope that helps some.

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