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1998 Buick Lesabre

Tiny
GEARHEAD!!
  • MEMBER
  • 1998 BUICK LESABRE
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 112,636 MILES
I have a no start condition. It cranks over fine and sounds like it's firing but won't start. It was missing and running crappy last month and I replaced the coils and it ran good after that until today. It was 30+ degrees today so it wasn't because it was too cold. This condition happened one othe time but it snapped out of it.
Thanks in advance!
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Wednesday, March 4th, 2009 AT 4:59 PM

5 Replies

Tiny
ZACKMAN
  • MECHANIC
  • 4,202 POSTS
Check fuel pressure at the fuel rail (should be about 45 psi). Also check for spark at the plugs.
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Wednesday, March 4th, 2009 AT 9:31 PM
Tiny
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  • 4 POSTS
Thanks or your reply. I checked for fuel pressure and there isn't any. I'm assuming it could be the pressure regulator or fuel filter. It had a new pump put in not long ago. Anyone have any ideas?
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Monday, March 9th, 2009 AT 9:07 AM
Tiny
ZACKMAN
  • MECHANIC
  • 4,202 POSTS
You may want to check for voltage at the fuel pump B+ connector. If you have power at the harness, the pump is bad. Before replacing the pump though, you may want to replace the fuel filter as well.
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Tuesday, March 10th, 2009 AT 7:56 PM
Tiny
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Thanks Zackman. As soon as it warms up I'll check it out.
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Wednesday, March 11th, 2009 AT 6:27 AM
Tiny
ZACKMAN
  • MECHANIC
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Sure thing.
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Wednesday, March 11th, 2009 AT 8:52 PM

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