Buick Regal, Century and Park Avenue as well as the Rendezvous and Lesabre.
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- Posts: 1
- Joined: Wed Mar 01, 2017 8:29 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
- Posts: 2280
- Joined: Wed Apr 10, 2013 12:42 pm
- Location: Oregon
what is your fuel pressure? have you scanned for codes? what are your fuel trims looking like? What are your o2 sensors showing? Injector pulse width?
Same exact problem i have. you figured it out?? Could it be a vacume leak clogged fuel filter injectors plugged i dont get it just can not figure it out