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I'm sure there is a fuse somewhere, but the electrical connections for the rear defog are made thru the struts that hold the rear hatch open. this is why if you buy new struts for that car they will ask you does it have rear defog. the struts you need must have an electrical connecter at the forward end with a wire attached to each strut. go look.
What else can I help you with?
Where is the fuse for the third brake light on a 1991 Pontiac Firebird?
It is listed in the 1991 Pontiac Firebird Operations Manual
Will parts off of a 1989 Pontiac firebird work on a 1991 Pontiac firebird?
What parts??? Body, engine, suspension???
Gas milage Pontiac 1991 Firebird?
I calc'ed my '91 V8 Formula Firebird to be about 18 mpg.
What are the speaker sizes in a 1991 Pontiac Firebird?
i know the backs are 6x9
Does 91 Pontiac firebird have 3rd gen?
A firebird can't "have" third gen. It either is or is not a third generation firebird, and Yes, a 1991 is a third generation.
Where is the fuel filter located on a 1991 Pontiac Firebird V6?
underneath the drivers door
What kind of oil should you use in a 1991 Pontiac firebird take?
I use 10W-30
Where is the fusebox in a 1991 Pontiac firebird?
I know mine is on the drivers side there is a door in the kick panel
What is the proper spark plug gap on a 1991 Pontiac Firebird 5.0 V8?
I have a 1990 Pontiac firebird, and the gap on that, I believe is .035. If you still have the sticker under your hood with the engine size, it says it right on there.
Wiring diagram for 1991 firebird?
A wiring diagram, for a 1991 Pontiac Firebird, can be obtained from most General Motors dealerships. The wiring diagram can also be found at most auto-parts stores.
What type of oil does a 1991 Pontiac Firebird uses?
10w30 motor oil should work nice
Where is the voltage regulator located on a 1991 Pontiac Firebird with a V6 3.1 liter engine?
Inside the alternator.
