I had the same problem with my 89 Buick Le sabre. It turned out that I had to replace the computer. It was giving the wrong signals and cutting off the fuel. My engine light came on each time it happened. Since the computer was changed it has run like a charm. It cost about $500.
Also when they ran the tests for the eng light data the computer was giving the wrong info and so many of the wrong parts were first replaced.
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repairpal.com > Recalls > Buick There have been 10 Buick LeSabre recalls between 1990 and 2005. Learn if your Buick LeSabre is ... GM Recalls 2000-2001 Models Due to Brake Fluid Leak from the HCU. RepairPal Expert ... Buick LeSabre Problems. 31 · Buick LeSabre ..
First of all check the power steering fluid, have someone turn the wheel and listen to see if the noise is comming from the p/s pump, if no noise it is likely comming from the strut bearings. Worse case it could be in the rack & pinion unit.
sounds like you have a faulty turn signal switch. in your car the same lever can control lots of things, turn signals, bright headlights, flash to pass, not sure that's all, maybe the wipers too. so gm calls that thing a multifunction switch. can you change it yourself? maybe. will it be easy? depends on what else you have done. you have to take the steering wheel apart to get to it. i think your car is new enough to have airbags, so you have to deal with that. if you are still interested in doing it yourself i can give you a play by play, just trying to let you know you do run the risk of deploying the airbag so you need to decide if you think it's worth it.
Check where the wiring goes into the fan motor itself.The power probably goes there first into a blower motor resister.If the resister is shot many times its the same symptoms your describing.If you dont know what it looks like you could stop at a auto parts store to see.
Can I please have a bit more detailed description of exactly HOW it won't start does it not turn the engine over?
Does the egine turn over and just won't start?
Does the starter "click" or do nothing ?