1994 Buick LeSabre Q&A
1994 Buick LeSabre Question: cam and crank position sensors
Is there a certain gap that must be maintained when replacing these sensors? I am replacing these trying to find the problem with this car. It dies intermittently and gives no codes. What causes no codes to be stored. Three mechanic shop have tried to fix this car with no luck. so I am going to replace these sensors unless you can tell my something else to try, to fix the dying problem. It only happens upon slowing down, never at freeway speeds and so far not at city speeds either, only upon slowing down. Any help would be appreciated. - Henry Ray
Older cars you used to have to set the gap between the sensors and the tone ring but newer sensors are fixed and don't have provision to become "adjustable." Intermittent problems can be hard to find but are usually sensor related (the sensor heats up and fails) or wiring harness related, sometimes even control module/computer related. 1994 cars are pre OBD2 diagnostic capabilities. On Board Diagnostic 2 measures sensor open, sensor shorts and sensor performance, OBD1 which is the diagnostic capability level of your car was not as advanced in its capabilities. - patrick mannion
What engine do you have in the car? Does it restart ok or is there extended cranking before it starts. - backyard tech
I had a weak relay that powered the computer do this. Try finding the relay that powers the computer, and switch it with a like relay in the box, to see if this fixes the problem. No cost to try, only time. - Tom another owner
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