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Re: Buick le sabre
You need to check for spark with a spark tester, then if you have spark; you need to check for fuel. You can do that by spraying ether into the air intake to throttle body. If it want to run...the next place to check would be the fuel supply.
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I have recently worked on a 1995 Buick Le Sabre that wouldn't start.
First checked the fuel pump fuse and relay, they were both good.
Then proceeded to change the faulty fuel pump. Proceeded to crank the car up and NO START....
Ended up finding that these buicks have problems with there wiring. So i found the power and ground wire to the fuel pump. Grounded it to the frame, and ran a hot wire up to the dash to a on/off switch that i then ran through the firewall and into a 20 amp fuse link. From there to a power source. Now to start the car, you have to turn the fuel pump on and off when you shut the car off.
But that beats chasing the entire wiring harness down to find a mysterious short.
Since there is NO sticker under the hood of this 2003 Buick LeSabre and it is not in the owner's manual, a Google search revealed that it is the same as at http://www.fixya.com/cars/t3438653-change_serpentine_belt_1998_buick