I have a fuel pump problem on my bonne in sig. I called several junkyards and cheapest I got was $85 for the fuel pump. I am wondering if there are any other cars I could get the fuel pump from? Like the buick lesabre or something?

94 used two different fuel pumps.
If you have CRC on the wiring harness you can use any 94 with the same code or any 95 and up to 99 Bonnie, 95 - 99 Lesabre, Olds 98 or 88, some park aves

If you have CAC on the harness then you'll be restriceted to 94'* I think. I don't know to much about the older series.

The yard should have an Interchange book with what other cars had the same pump.

With CRC

BUICK
1993 - 1996 CENTURY
1994 - 1996 PARK AVENUE
1994 - 1999 LESABRE

OLDSMOBILE
1994 - 1996 98
1994 - 1999 DELTA 88
1995 - 1996 CIERA
1996 - 1999 LSS
1993 - 1994 CUTLASS CIERA
1997 - 1998 REGENCY

PONTIAC
1994 - 1999 BONNEVILLE

With CAC

BUICK
1993 - 1994 LESABRE
1993 - 1994 PARK AVENUE

OLDSMOBILE
1993 - 1994 98
1993 - 1994 DELTA 88

PONTIAC
1993 - 1994 BONNEVILLE

Where do I look to find out which one I have?

Excellent list wjcollier07

I believe that you can either find a tag on the tank to see, and if the tag is missing, you will have to take out the old one and look at the tag on it instead. thats about the only way to tell. as far as i know.