Blower motor control relay under dash behind blower motor is bad or has water in it from cabin filter port.
i need to know how to remove a blower motor from a 2002 bonneville.
Replacing the ac blower motor on a 2002 Bonneville is extremely dangerous and unless you know what you are doing it is best to get a hired professional to do it.
Under the hood to the left of the blower motor mounted in the housing on the firewall...
Loose connection or blower motor is bad
The blower motor on a 1997 Pontiac Bonneville is located next the evaporator core. It will be mounted behind the glovebox on the passenger side of the vehicle. Remove the glovebox, mounting hardware, and sensor clips. The blower motor will be able to be replaced.
At the passenger's side firewall
The blower motor resistor is located just above the blower motor under the hood. It should have an electrical connector plugged into it and some screws holding it in place.
check for voltage at the blower motor on all settings. if no voltage check the blower motor resistor or relay. if it has a resistor it will be right beside the blower motor, if it has a relay it will be the relay on the firewall under the hood.it will probably have a purple,orange,blue,and black wires.
Under the dash board..look for the bolts right under the dash.
CHECK THE BLOWER HOUSING. IT SITS INSIDE THE HOUSING AND IS SECURED BY SCREWS ON TOP OF THE BLOWER HOUSING.
If the blower motor randomly and intermittenly quits and does not work, chances are good the blower motor itself is faulty, if the blower motor does not work on all fan speeds from low through high, it most likely needs a blower motor resistor.
On the passenger side of the car behind the glove box. Get to from the inside.