What is wrong with my Heater Blower ?


Asked by Jtas Jan 09, 2013 at 01:17 PM about the 2002 Buick LeSabre

Question type: Maintenance & Repair

The heater blower works most of the time. When I start the car first time in the morning' the blower works. When I shut the car off , and then start it up after an hour or two, sometimes the blower will start and sometimes it won"t. After driving for a while, sometime it will start blowing. If it doesn"t start by itself,sometimes if I tap the area where the blower is, it will start blowing.

9 Answers


Bad conection or the blower motor is going bad would be guess

9 out of 9 people think this is helpful.
Best Answer

armature may have a flat spot in it. When you tap it or hit a bump it will move it a little and get it off the flat spot

5 out of 5 people think this is helpful.

Thank you. I will look at a bad connection or replace the blower motor. I thougt that it could be a bad Resistor Module. Is tha possible?

4 out of 4 people think this is helpful.

No a bad Resistor module will either work or it won't

3 out of 3 people think this is helpful.

A 2002 blower motor is over ten years old. The brushes are worn down and get stuck in the brush holders. Tapping the motor breaks them loose. Replace the blower motor.

3 out of 3 people think this is helpful.
Donna Zangenberg

I have a similar issue with my 2000 Park Avenue. I took the panel off behind the dash, found the resistor module, and the wires there seem to be loose. If I push on them the a/c works for awhile. Then it vibrates and stops/starts intermittently. It seems the connector to the resistor is bad on mine. Looks like some of the wires may be making a bad connection inside the plug. I'm trying to find the plug but it looks like my only option may be to buy a new resistor. Check your wires. Could be the same problem. It gets pretty hot at that connection, and my plug has a melted spot.

2 out of 2 people think this is helpful.
Donna Zangenberg

Please post if you find a solution.


Hi Donna, I'm having this exact same issue. When I move the connector around and push it into the resistor it works. Ever find any info? Can I just replace the plug? The resistor is expensive :(

2 out of 2 people think this is helpful.

I dont know if this will be seen but I also have a blower issue in my 1998 La Sabre. My blower mostly doesnt work even all the control functions look right. The hook for me is mine will sometimes pop on if I hit the horn. What the hell does that mean? When I was angered at the thing not working, I hir the horn and it started blowing. It only works every now n then so I drive around tapping the horn. Anyone? Anyone?

1 out of 1 people think this is helpful.

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