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Car runs for about a mile then dies

Tiny
LOANLY45
  • MEMBER
  • 1988 BUICK LESABRE
  • 3.8L
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 125,000 MILES
I replaced the battery in my car. Since the turn signals flash FAST, and the fuel pump went out. Replaced fuel pump and now the car will run for about a mile then shut off. Restart and will run for about a mile then shut off. You could set your watch to when it's going to die. I put old battery back in, replaced the altinator and ign modual and also checked and cleaned all the grounds. It will idle fine for about a min then idle becomes rough but stays running. If u bring rpm's up to 2000 rpm's it will run for about 30sec then die continuously. Again can set ur watch to it. What else could it be? Computer?
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Thursday, March 6th, 2014 AT 5:41 PM

2 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Scan for codes and check fuelpressure with a gauge autoparts rent it. Check connections and fuses as well.
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Friday, March 7th, 2014 AT 5:57 AM
Tiny
HARRY P
  • MECHANIC
  • 2,293 POSTS
Be sure to check fuel pressure both when the car is running fine and when it is running like crap/not running.
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Thursday, May 22nd, 2014 AT 6:50 PM

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