The Chevrolet S-10 Blazer was launched along with the S-10 pickup in 1982. The 1995 Chevrolet S-10 Blazer was equipped with a 4.3-liter V6, capable of producing 200 horsepower. The base model of the 1995 S-10 Blazer had two-wheel drive. The 1995 S-10 Blazer’s blower motor is responsible for moving air in the heating and air conditioning system in the vehicle. The blower motor is an electric motor that wears out over time, making it necessary to replace it.
Open the hood of the S-10 Blazer. Loosen the negative (black) battery cable, using a ratchet and wrench. Completely remove the battery cable.
Remove the Vehicle Control Module (VCM) from behind the passenger side engine compartment. The VCM is a large aluminum-coated computer with three electrical connectors attached. Remove the VCM mounting bolts with a ratchet and wrench. Put some tape on each connector. Put the numbers “1”, “2”, and “3” on each connector from left to right. Remove them, then remove the VCM completely from the engine compartment. If your vehicle does not have a VCM, then skip this step and proceed to step 3.
Remove the spare coolant tank bolts with a ratchet and wrench. Move the tank forward in the engine compartment, without removing any of the coolant hoses that are attached (moving the tank will expose the entire blower motor and its housing on the passenger side firewall).
Remove the wire connector attached to the rear of the blower motor with your hands. Remove the small rubber hose attached to the motor by turning it halfway around and then pulling it off the motor. This hose is the cooling hose from the blower motor. Remove the motor bolts with a ratchet and wrench. Remove the old motor by pulling it out horizontally, by hand.
Install the new fan motor into the unit, and install all the bolts by hand, locating them in their holes. Tighten the fan motor bolts with a ratchet and wrench until they are snug. No torque is necessary for the fan motor; adding torque may break the plastic motor housing. Install the fan motor cooling tube to the new motor by pressing it against the protruding nipple. Connect the wires to the new fan motor by pressing the connector toward the motor until it snaps into place.
Move the coolant reservoir back into position on the fender and install its bolts. Tighten them snugly with a ratchet and wrench, but do not add torque on the bolts.
Install the three wire connectors back to the VCM, if there is one. Install the connectors from left to right according to how you numbered them before removing them. Install the VCM bolts and tighten them securely with a ratchet and wrench.
Reconnect the battery lead and cable. Tighten the lead until it is snug, then give it another 1/4 turn. This “firm and a quarter” method of tightening will add the eight pounds (3.63 kg) of torque needed to tighten the battery lead.
Turn the ignition key to the “II” or accessory position. Test the new fan motor by turning the fan speed switch on the fan control panel. Turn the switch one position at a time. If the motor speed does not increase with each turn, or if it shuts off at certain points, you may need to replace the fan speed switch. If the motor doesn’t run at all, recheck the wires. If the wires are connected properly, replace the fan motor resistor located next to it.
Warnings
Failure to disconnect the battery for this procedure may result in electrical shocks, or may cause damage to the vehicle’s electrical systems.