The front defroster makes my car jump

RSNNRR

MEMBER
2000 PLYMOUTH NEON
120,000 MILES

I just got my timing belt and water pump fix but now when I turn on the front defroster you can feel the fan stop for about 2-3 seconds and then it kicks on. When it does this the car feels like it is going to stop and it jump a litte but when I use the heater it works fine what is going on.

5 Replies

ASEMASTER6371

MECHANIC
52,797 POSTS

Sounds like the ac compressor is loading up the motor giving you this sensation. In defrost, the ac is turned on for humidity control. It is not activated with the heater.

Which fan? The inside blower or outside cooling?

Roy

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Thursday, November 10th, 2011 AT 2:12 AM

RSNNRR

MEMBER
3 POSTS

The inside blower works fine with the heater, but with the defroster it stops working for a few seconds and then it starts up so I would think its the outside cooling.

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Thursday, November 10th, 2011 AT 2:16 AM

ASEMASTER6371

MECHANIC
52,797 POSTS

It sounds like a failing motor. I would replace it.

Roy

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Thursday, November 10th, 2011 AT 2:17 AM

RSNNRR

MEMBER
3 POSTS

Would that be the blower moter, and would there be anything else that would effect the defroster and not the heater

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Thursday, November 10th, 2011 AT 2:30 AM

ASEMASTER6371

MECHANIC
52,797 POSTS

As I told you, the ac compressor is loading up the motor. That is normal. Only works in the defrost mode, not the heater mode.

Roy

The front defroster makes my car jump

5 Replies

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