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1994 Buick Regal Custom 2dr Coupe

1994 Buick Regal
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March 21, 2013, 6:47 pm

Lisa R
 

Question: if my car turns over upon starting about 3/4times is it start or sensor

when i start my car it have to turn over 3/4 times before catching,also if i drive it 16-20 miles around town possibly it won't start for about one hour,than start.problem been going on for one year next month,been told its some type of sensor or maybe starter or sailnord????please help


March 23, 2013, 4:05 pm

Ron W
Expert Mechanic

May be the Crank Position Sensor is not working well. It sends out the RPM signal to the PCM. If it is bad, there is no RPM signal, and the PCM will not command the injectors to fire and th car won't start.

Easiest way to see if it works is to hook up a scantool and crank the engine. Monitor the datastream for RPM. If you see RPM then the sensor is working, if it reads zero RPM, then there is a problem with the Crank Position Sensor circuit.


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