hi, i am driving a 1993 buick lesabre custom. just today, my brakes started getting wierd(power assist dont always work) and it idles real high at about 2 minutes at a time, then goes back to normal idle. i think it has something to do with the vacuum system, but im not sure. please help!!
Sounds like the car is not safe to drive. Take it to a shop and have it looked at before you get into an accident.
Based on your description I would suspect a leak in the vacuum line to the brake booster or a failure of the brake booster itself.
Chris
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