Electrical problems?

Asked by Sep 15, 2017 at 04:31 PM about the 1999 Mercury Grand Marquis 4 Dr GS Sedan

Question type: Maintenance & Repair

I I have a 99 Grand
Marquis first the radio
was going in and out and
then it just stopped
working so I tried to
swap the radio out but I
wasn't getting any power
then the blower motor on
my fan heater AC went
out then I couldn't get my
car out of park  while it
was running  and my
brake lights went out my
hazards are out and my
IAC valve is coming up
bad I replace the brake
light actuary switch it did
not make my brake lights
work or allow my car to
go into gear while it was
running I'm thinking that
maybe I have an
electrical problem in the
computer for the car
needs to be replaced

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