it's a 96' buick park avenue non-supercharged 3.8L. last year i bought a used engine with about 36,000 miles on it and put it in. it started fine and ran good for about an hour or so, then when going to work the next day it stalled. i drove it for three months and it would stall intermittinly but then sometimes it wouldn't stall. then in jan/feb this year it started surging and would not stall and then it didn't start at all.
i replaced a crankshaft sensor, fuel pump unit, repaired a loose connector for the ignition module, it has fuel pressure, has spark and compression, i cleaned the injectors, regaped the spark plugs. when i start the car it cranks but will not turn over. any help or thoughts or ideas that could help me out please tell me.|||I never could fix a car over the phone [didn't pay well, anyhow] so i can't be alot of help. I did have a buick lasabre with the same engine that had a lot of trouble starting because of bad spark plugs believe it or not. If you have spark, compression and fuel the only thing left is timing and too much fuel. I'd probabably go for too much fuel. Are your plugs getting wet? Try starting it with the gas pedal all the way to the floor and see if you get a reaction.
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