Can you tell me the codes on the dashboard of a 1991 buick park avenue ultra

SOURCE: 1991 buick park avenue will not run fuel pump is good and replaced the fuel filter

http://www.fixya.com/cars/t1810766-1991_buick_park_avenue_stop_running

Check out this link. It may help you with your problem.

SOURCE: 1991 Buick Park Avenue- computer problem?

You can find it under the passenger side, below the glove box. Usually, when they fell, you will get mutiply codes that don't make sense, but needs to be tested with a scan tool, Genesis, or Snap on Scanner.

SOURCE: 1999 buick park avenue ultra motor mount and

1. Remove the engine mount to engine mount bracket nuts. Important: Ensure that the wood block extends past the width of the oil pan in order to avoid damage.
2. Use a jack with a block of wood on the jack under the oil pan in order to support the engine.
3. Remove the engine mount bracket front upper and lower nuts.
4. Remove the engine mount bracket front upper and lower studs and spacer.
5. Lower the engine as necessary and rotate the tensioner to remove the drive belt.Remove the supercharger belt.
6. Reverse For INSTALATION

SOURCE: serpentine belt diagram for 95 buick park avenue

CLICK on the following LINK. It has the Belt Diagrams you will need.

If you would: Before Clicking: Let me know if this helped you, or if you have any additional information or questions. Feel Free to contact me at FixYa.com!

http://www.2carpros.com/car_repair_information/year/1995/make/buick/model/park_avenue/1995_buick_park_avenue_drive_belt_routing_diagram.htm

SOURCE: Buick park avenue ultra 1997 spark plug wires

Here is a firing order diagram for that vehicle, and let me know if you need any help to understand this diagram, or if you require any further assistance.