Replace heater motor resistor.
8.00 r16.5 lt
For the 1989 Dodge Ram, the heater blower motor resistor can be found on the passenger's side, on the bottom of the heater box. It is beside the blower motor.
There is a fuse under the hood for the blower motor.
It should be in the heater blower motor case which is located under the glovebox.
Bad bearing in blower motor?
On the Dodge Ram truck, the heater fuse for the blower is on the fuse panel on top of the battery. There is also a blower motor resistor on the blower motor. The fuse to control the heat control panel is in the fuse box in the dash.
RIGHT BESIDE THE BLOWER MOTOR UNDER PASSENGER SIDE OF DASH
Under the dash on the passenger side.
6 mpg in mine, I know a couple careful people that claimed 10 mpg
The 1998 Dodge Neon does not have a relay. It does have a blower motor resistor that could be bad.
The blower motor resistor pack is bad.