1998 Buick Lesabre

1998 BUICK LESABRE

112,636 MILES • 6 CYL • FWD • AUTOMATIC

GEARHEAD!!

MEMBER
4 POSTS

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!

Mar 4, 2009 at 8:59 AM

ZACKMAN

✓Experienced Mechanic
4,202 POSTS

Check fuel pressure at the fuel rail (should be about 45 psi). Also check for spark at the plugs.

Mar 4, 2009 at 1:31 PM

GEARHEAD!!

MEMBER
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?

Mar 9, 2009 at 2:07 AM

ZACKMAN

✓Experienced 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.

Mar 10, 2009 at 12:56 PM

GEARHEAD!!