Minggu, 26 Juni 2011

How to Replace a 1998 Nissan Pathfinder Blower Motor

Blower motors are responsible for circulating heat and air conditioning throughout the cabin of the car. They can best be compared to a small window or desktop fan. Over time, blower motors run down or stop working altogether. Damage to the blower motor typically occurs during the hottest and coldest months. These are the times when the blower motor is often run at its highest heat or AC setting. When attempting any do-it-yourself auto repair, always remember to use safety measures and wear eye protection.
Difficulty: Moderately Easy
Instructions
Things You'll Need
Socket wrench set
Black electrical tape
Philips screwdriver
Painter's tape
Blower motor
The Car's Battery
1

Disconnect the negative battery cable from its terminal. The negative cable is readily identified by the "minus" symbol next to it on the car's battery.
2

Wrap the metal end of the battery cable completely with black tape.
3

Lay the cable down gently, making sure that it doesn't contact any other metal or the engine itself.
Removing the Blower Motor
1

Remove all four of the screws from the glove box with your Philips screwdriver and set them aside.
2

Slowly remove the glove box from the dashboard. Make sure that no wires get caught or stuck. Place the glove box and its screws to the side of your work area so that they're out of the way.
3

Locate the blower motor under the dashboard. It will be shaped like a small circle, and is about as big as a saucer used to hold a teacup.
4

Unplug the wiring harness from the blower motor. Use the painter's tape to mark the wire, then temporarily tuck it out of the way under the dashboard.
5

Remove the three screws that hold the blower motor in place.
6

Carefully remove the old blower motor and place it to the side of your work area.
Installing the Blower Motor
1

Inspect the new blower motor to make sure that it isn't damaged. Check both blower motors side by side to also make sure that they are identical parts. Place the new blower motor back into the same exact position as the old one. Make sure that all three of the screw holes line up correctly with the new blower motor's screw holes.
2

Secure the blower motor by returning all three screws using your Philips screwdriver. Be careful not to strip the screws. One quarter turn past hand-tight will be enough to secure the blower motor.
3

Remove the painter's tape from the wiring harness and plug it back into the new blower motor.
4

Carefully slide the glove box back into position while making sure no other wires are caught or tangled, and resecure it with its screws.
5

Remove the black tape from the battery cable's metal terminal and reattach the cable to the car battery. Start your car and test out the new blower motor on all of its air settings to make sure it works properly.

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