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I have an 1987 GMC 4wd V1500 350 V8 truck with A/C. I ...
Sent to Car Experts August 01 06:13 PM

I have an 1987 GMC 4wd V1500 350 V8 truck with A/C. I recently added coolant to the A/C. Since then blower will work on ever thing but high.....i replaced the switch but still cant get it to bow on high.

 

Optional Information:
1987 GMC V1500 350 V8

Already Tried:
replacing the blower switch inside on the A/C Controls

Customer (name blocked for privacy)
Status:  Closed   Value: $10
Answer
August 1 6:16 PM (3 minutes and 31 seconds later)
         
REPLIEDCheck Mark
check the resistor?

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MechanicMan -- Master Auto Tech -- 98% Positive Feedback on 664 Car Accepts
Master Auto Technician 28yrs Electrical and Mechanical experience
Reply
August 1 6:21 PM (4 minutes and 25 seconds later)
         
Reply to MechanicMan's Post: that is working fine could it be to much coolant
Customer (name blocked for privacy)
Answer
August 1 6:24 PM (3 minutes and 37 seconds later)
         
REPLIEDCheck Mark

When you checked the resistor where was it?



If this helps PLEASE hit the ACCEPT button and Please Give POSITIVE FEEDBACK!! BONUSES WELCOMED!Thanks
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MechanicMan -- Master Auto Tech -- 98% Positive Feedback on 664 Car Accepts
Master Auto Technician 28yrs Electrical and Mechanical experience
Reply
August 1 6:27 PM (2 minutes and 16 seconds later)
         
could it be something else

Edited by Customer (name blocked for privacy) on August 1 2006 at 7:52 PM
Customer (name blocked for privacy)
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