Posted on Aug 11, 2010

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The ac in my truck is working. Up until this week it would work on all speeds up to 4 but not 5. Now it is not working on 4 and 5. What could be causing this problem?

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buzz flewhart

Chevrolet Master 655 Answers
Posted on Aug 11, 2010

buzz flewhart

Chevrolet Master

Joined: Mar 24, 2008

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The blower has TWO fuses. One for the lower speeds and one for HIGH only. Check your owner's manual for location. If you don't have an owners manual, try your local library in the AUTO section. They should have a Chilton's or Motor's book for your model/year. If that isn't it, you've probably got a bad switch.

Anonymous

Master 324 Answers
Posted on Aug 11, 2010

Anonymous

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Could be the blower or fan motor, could also be the switch itself

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Heater blower does not work on settings 1 2 and 3 but does work on setting 4 do you know why?

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The ac in my truck is working. Up until this week it would work on all speeds up to 4 but not 5. Now it is not working on 4 and 5. What could be causing this problem?

2 Answers

buzz flewhart

Anonymous

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Attachments: Added items

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The ac in my truck is working. Up until this week it would work on all speeds up to 4 but not 5. Now it is not working on 4 and 5. What could be causing this problem?

2 Answers

buzz flewhart

Anonymous

Add Your Answer

Attachments: Added items

Related Questions:

Heater blower does not work on settings 1 2 and 3 but does work on setting 4 do you know why?

The heater fan only works on speed 4 but the lower speeds started too work again then stopped also the ac only gets cold when the lower speeds work

THE CAB FAN ONLY WORKS ON 4

2003 Toyota Corolla AC Blower/Fan will not turn on, I replaced the Blower/Fan a few weeks ago,

2003 Chevy Impala w/dual zone heat /AC stopped blowing on speed 5. Worked fine on speeds 1 thru 4 for about 4 weeks then stopped working on all speeds.

Level 5 on my air conditioner is not working.

Blower speeds on ac/heater for 2003 chevy pickup(v6)

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