When in park engine cuts out if you rev it to 3800-4200 rpm makes a popping backfiring noise
That's normal; this protects your engine from over-rev damage.
SOURCE: 1990 buick regal 3.8L- Backfires, stumbles on acceleration
most likelly it is your fuel pump is not puting godd fuel pressure
have the fuel pressure test and if it is low have the fuel pump and filter replaced
SOURCE: i have a 1999 buick regal ls dying.
I found the problem. It was the crank position sensor. There was also a cracked vacuum hose connecting to the diaphragm on the fuel rail. Replaced both and my 92 Buick no longer dies. For the guy who's Buick was dying when using the turn signals - replace the crank position sensor. One of my symptoms of my Buick dying was when I used my turn signals. Use of turn signals places a varying load on the electrical system which messes up the crank posistion sensor if it is going bad.
Bob
SOURCE: 2001 buick regal ls - mileage dash lights are out
It is your Instrument cluster, see my answers to this question and write me if you have any more questions, it cost me a total of no more than $15 dollars to fix it myself, took be about one hour.
SOURCE: 99 Buick Regal LS dual climate control. No heat passenger side.
the motor for the passenger side
blend door is shot
SOURCE: 2002 buick rendezvous groans when turning
The fluid in the versa trak AWD in the rear is old and needs to be drained and refilled. After you drain and refill it, make a bunch of sharp left and right hand turns, then drive it for 10 minutes. Drain and refill it for the second time and problem solved. Use only versa trak fluid available at any GM dealership. There is TSB on this now at the Buick dealership.
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