Question about 2000 Buick LeSabre

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Whenever i turn the wheel on my 2000 buick lesabre, my car acts like it wants to shut off and sometimes while im driving it does shut off, but cranks rite back up! It also idles high sometimes. What could be doing this????

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Well you have a three part question...so part one the engine whats to shut off when you turn the wheel>there is a steering pressure switch located on the power hose line running to your power steering pump,,,it has an electrical connector make sure it hasn;t come loose or fuild leaking at base of switch or on top by connection...this switch sends a signal to your computer to increase the engine speed when the wheel is cranked so it doesn't stall ..Number 2 while driving shuts down can be a number of things but sort of relates to Number 3 idleing high sometimes...On your throttle body there is a component called a IAC sensor [idle air control} it should be tested sometimes the oring seal goes bad...also check condition of your air filter,if your vehicle has a MAF sensor {mass air flow } it also could be dirty....so with your air filter off and engine running spray some THROTTLE body cleaner into the opening of throttle while increasing the Rpm's of the throttle...Hope this leads you the right way

Posted on Nov 08, 2010

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