The crankshaft position sensor, ignition module, and/or powertrain control module (PCM) may fail resulting in illumination of the Check Engine Light with ignition system related fault codes stored in the PCM. Patience is necessary when dealing with this specific situation as normal diagnostic procedures are not effective. In many cases, the best option is to replace parts, one at a time until the fault is corrected.
Problems for specific Buick models:
Car problem reports
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Most reported Buick problems
The high pressure power steering hose will commonly leak fluid; it should be replaced.
The anti-lock brake (ABS) accumulator may fail causing loss of power brake assist. (The brake pedal will become very hard.)
Illumination of the Check Engine Light can be caused by a loose or worn gas cap.
The steering wheel position sensor may fail, resulting in the service stability message being displayed.
After a rain there is water on the front floor both driver's side and passenger side. Had new windshield put in and sealed under cowl and all drains under cowl are clean.
When engine is warm and coming to a stop and foot of the pedal and braking the engine stalls ... no hissing sounds on brake booster. Car will not stall if i down shift to third or second on auto transmission.