Not knowing what you've done so far, have you checked your fuses yet ?
The Buick Park Avenue Started In 1991
what are you takling about? no such thing!
disc
10w30
3
Check for loose or corroded battery cables
The Buick Park Avenue nameplate was first used in 1977 on a model of Buick Electra, but did not exist as a standalone model until 1991, when it replaced the Electra.
5 QTS
Check out Crutchfield.com
fuel pessure test
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You dont. The computer does it.