2005 won't accelerate

Buick Regal, Century and Park Avenue as well as the Rendezvous and Lesabre.
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Rblumke123
Posts: 1
Joined: Wed Mar 01, 2017 8:29 pm

2005 won't accelerate

Unread post by Rblumke123 » Wed Mar 01, 2017 8:32 pm

I have replaced head gasket, plugs , wires and catalytic converter and under load or in Park when you give it gas it losses power