A/C Blower Problem
#11
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Where is the resistor located?
Hey BB, glad to hear your problem was an easy fix. Mine however was not. I bought a new resistor, located it and replaced it, hoped back in the blaze, and still nothing! i was a little frusterated so i drove it up to Pep Boys to see if i could get any suggestions. All he told me was that he could run a diagnostic for $40, other than that he couldnt help me. Even more frusterated now, I went back out to the parking lot too see if i could run my own diagnostic (look to see if anything is visually out of place). I noticed that there was electrical tape on the plug that goes into the resistor. i decided to unwrap it and take a look. I thought maybe there was a short in the wire or something simple.
This is what i discovered:
![](https://blazerforum.com/forum/attachments/2nd-generation-s-series-1995-2005-tech-41/23282-c-blower-problem-2010-04-13175407.jpg?dateline=1415238447)
![](https://blazerforum.com/forum/attachments/2nd-generation-s-series-1995-2005-tech-41/23284-c-blower-problem-2010-04-13175359.jpg?dateline=1415238447)
the plug was literally taped to the wires! not connected at all!!!!
someone just taped it on there and called it a day!
UGH! i was SO pissed off yesterday.. I've calmed down a little bit since then though. lol
But what aggravates me is that i dont even think my resistor needed to be replaced, it didnt look fried. the resistors themself were a little discolored but does that mean it was fried? What do you think?
Close ups are attached.
OLD is on left and NEW is on right
![](https://blazerforum.com/forum/attachments/2nd-generation-s-series-1995-2005-tech-41/23285-c-blower-problem-2010-04-13172802.jpg?dateline=1415238447)
So, I SHOULD be able to take a plug from the JY and wire it up to the existing wires correct?
The principle of the matter pissed me off...
This is what i discovered:
![](https://blazerforum.com/forum/attachments/2nd-generation-s-series-1995-2005-tech-41/23282-c-blower-problem-2010-04-13175407.jpg?dateline=1415238447)
![](https://blazerforum.com/forum/attachments/2nd-generation-s-series-1995-2005-tech-41/23283-c-blower-problem-2010-04-13175415.jpg?dateline=1415238447)
![](https://blazerforum.com/forum/attachments/2nd-generation-s-series-1995-2005-tech-41/23284-c-blower-problem-2010-04-13175359.jpg?dateline=1415238447)
the plug was literally taped to the wires! not connected at all!!!!
someone just taped it on there and called it a day!
UGH! i was SO pissed off yesterday.. I've calmed down a little bit since then though. lol
But what aggravates me is that i dont even think my resistor needed to be replaced, it didnt look fried. the resistors themself were a little discolored but does that mean it was fried? What do you think?
Close ups are attached.
OLD is on left and NEW is on right
![](https://blazerforum.com/forum/attachments/2nd-generation-s-series-1995-2005-tech-41/23285-c-blower-problem-2010-04-13172802.jpg?dateline=1415238447)
So, I SHOULD be able to take a plug from the JY and wire it up to the existing wires correct?
The principle of the matter pissed me off...
#12
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I got a 2000 Chevy Blazer 4.3 blower only works on high I check fuses and on the fuse box the fuse label HV AC 30 amp there is no power to it I replace the the resistor also replace the switch still the same any ideas?
#13
![Default](https://blazerforum.com/forum/images/icons/icon1.gif)
Here's a great site for the GM 4.3L V6 and tells you how to test the suspect item, not just replace parts. Usually all you need is a multimeter to do it. It talks about testing the resistor and the blower motor! There is a Part 1 and a Part 2. Read and enjoy. Jim
Part 1 -GM 4.3L 5.0L, 5.7L Index of Articles
Part 1 -GM 4.3L 5.0L, 5.7L Index of Articles
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