1994 Buick Lesabre Car dies at operating temperature

Tiny
CHRISBUICK
  • MEMBER
  • 1994 BUICK LESABRE
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 150,000 MILES
I have a 1994 buick lesabre. The car starts and runs great but after about 10 minutes the cars starts to bog out then it dies. The car will not restart until the engine has cooled down. I have allready replaced the cam position sensor and that didnt seem to help. Any clue as to what is going on with my car because I cant figure it out
Wednesday, September 23rd, 2009 AT 8:37 PM

4 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Hi there chrisbuick and TY for the donation

Hook up a fuel pressure gauge and monitor the pressure within that time frame it will show up as a sore thumb if there's a problem within the fuel system.

Check and test the coils/knock sensor/crankshaft position sensor and MAF sensor to include the MAP sensor and report with some testing results
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Wednesday, September 23rd, 2009 AT 8:54 PM
Tiny
CHRISBUICK
  • MEMBER
  • 3 POSTS
I tesed the coils and they are all firing. I have new spark plugs and wires waiting to go in because I do know the plugs are bad. I replaced the camshaft position sensor allready. I still need to do a pressure test on the fuel system and check the MAF. I bought the car for a cool $250 from my friend who couldnt get it to run so I thought I would give it a try. I managed to get it to start and runs but now im having the problem that im having. I will do some more tests tomorrow
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Wednesday, September 23rd, 2009 AT 9:11 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Keep me posted and be exact on your findings as you do the testing and get back with me.
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Wednesday, September 23rd, 2009 AT 9:15 PM
Tiny
CHRISBUICK
  • MEMBER
  • 3 POSTS
I will not be able to pressure test the fuel system until this weekend when I replace the plugs and wires. I do know though however the fuel pump and fuel filter are still the ones from the factory. Never been replaced. Neither have the coils, the spark plugs, and the spark plug wires. I will be in touch and if you think of anything else please let me know
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Wednesday, September 23rd, 2009 AT 9:44 PM

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