My 1997 buick LeSabre starts but wont stay running. Replaced ignition control modual but thie problem remains.
The crank sensor should be on the passenger side of the engine. It probably won't be visible without first removing the power steering reservoir, and possibly other items on that side of the engine. It is located down below near the waterpump pulley.
SOURCE: why is there No Spark in a 1991 Buick Lesabre
did u line the crankshaft sensor up? if not the sensor could have been damaged and the harmonic balance ,some models show a cam sensor ,check that,are u sure its not fuel related?
SOURCE: why is there No Spark in a 1991 Buick Lesabre
ECM would be the next part. Check the number on it . If it has the number 1228253 replace it anyway because they give a cutting off problem. Clean battery cables all three and replace bolts too.
SOURCE: Find crank position sensor
The crankshaft position sensor should be located behind the vibration damper/harmonic balancer and it will have to be removed before the crankshaft position sensor can be replaced. (Let me know if you require assistance with the proceedure)
Also, it usually requires a special tool to align that sensor (available from most auto part stores) and if the sensor is not properly aligned then damage to the sensor or the tone ring can occur.
Here is an image of the crankshaft position sensor with the vibration damper/harmonic balancer removed.
SOURCE: 94 buick lesabre 3800 engine, stalls after 10 mile
next time it won't run after it heats up, spray or pour water in crank sensor and see if it will start. I have seen new crank sensors go bad.
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