Where is the crank shaft sensor on a 88 buick regal?
If it is the 3800 engine, it is located behind the harmonic balancer on the front of the engine. You may need a special puller to remove the balancer. If it is the 2.8L engine. It is in the engine block between the engine blocks rt bank and the transaxle. It is very hard to remove this sensor. It has a tendancy to crack and break off which will force you to remove the oil pan to remove the broken peices.