Reduced power

Asked by Sep 22, 2016 at 07:16 PM about the 2008 Pontiac Grand Prix Base

Question type: Maintenance & Repair

Reduced engine power light 2008
grand Prix Pontiac will not keep a
charge as I'm driving battery volts
go down. I change battery four
times I got new alternator new
starter still. The voltage starts to
drop over heat. I change
thermostat too. Please help me
what can this problem be.

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