1994 Buick Lesabre Repair Question
Mileage: 214,000 miles.
94 won't start
Asked by jayson360Answer
So when it doesnt start have you checked the actual fuel pressure and for a nice blue spark?
Definitley no blue spark. Me and my dad checked that. Fuel pressure is also good.
So do you have any kind of spark when it doesnt start?
Have you checked for codes yet?What size engine do you have?
You could have a bad crankshaft position sensor.
I'm not picking up any codes. It has a 3.8 v6. I bought a crank ssensor. Also purchased a knock sensor. I know where the crank sensor is but not sure where the knock sensor is?
The knock sensor isnt going to cause you to loose spark.That just alters your timing while the engine is running as needed.Do you have a multimeter?If so we can test your crankshaft sensor before you replace it.Resistance for the crankshaft position sensor should be 800-1200 ohms.
I replaced the knock sensor, really wasn't sure what it did but it got replaced. Also replaced the ignition module, camshaft sensor and the ignition itself, not the cylinder where the key goes. Not sure what else to do.
And I really don't think it's the crank sensor either. From what i've been told, when those stop working they will not start at all. Mine just runs and quits and runs and quits.