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2003 Buick Regal Questions & Answers
Buick regal drive cycle instructions
If you had a emissions problem and it has been corrected and the check light is out, then it should be cleared after 200 miles.Or will just show is a inactive fault
2003 BUICK REGAL TRANSMISSION PROBLEM.
This is a common problem on some GM cars. There is a pressure control valve in the side cover of the transmission that needs to be replaced. The transmission does not have to be rebuilt. You will need to get a side cover gasket also.
2001 Buick Regal. Power door lock swith will not lock doors.
Remove the door panel and unplug the connector to the door actuator. Probe the contacts with a voltmeter set on DC volts. Then operate the lock/unlock switch. You should see the voltage toggle from +12 volts to -12 volts. If you do, then the wiring, switch and connector are good and you have a bad actuator. Be prepared to start replacing all of them because they all operate the same number of cycles.
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