1972 Chevy C10 Perplexed
 

Hello. I bought my dream truck a couple of months ago. It is a driver with only small cosmetic things to replace and minor mechanical things that need work to bring it back to the original condition it was as new. I have two pressing problems maybe someone can help me with. I cannot get the a/c blower to work on high. It was fine until I serviced the a/c and then the relay went out. I replaced the relay. But now the blower only works in low and medium. All the wiring and the switch checks out ok for juice. I looked at the resistor and the motor and they seem fine. I am stumped. Next I really would like to locate a original jack for it. They are hard to find. Does anyone know where I can locate one in working order? Any help or ideas would be appreciated.

Re: 1972 Chevy C10 Perplexed
 

Welcome to the site...I will try to help you as much as i can...as for question
#1 try to go to the 67-72 forums to get the help you need..there are alot of knowledgeable people there
http://67-72chevytrucks.com/vboard/forumdisplay.php?f=3

#2 you can try, craigslist, ebay, or looking in the classifieds here you cant post for sale, but you can buy, but you are more than welcome to become a supporting member :)

http://67-72chevytrucks.com/vboard/forumdisplay.php?f=8

Re: 1972 Chevy C10 Perplexed
 

Thanks for the quick response. I am still trying to figure out how to use and post on the forum. I will make use of your advice and do those things.

Re: 1972 Chevy C10 Perplexed
 

welcome aboard

Re: 1972 Chevy C10 Perplexed
 

Thank you

Re: 1972 Chevy C10 Perplexed
 

welcome

I had to change the relay mounted on the left side of the heat/ac box behind the cardboard glove box..its near the pass outside wall above the vent there is anotehr one that is inside the box behind the defrost vent splitter..wish I had some pics to show you but both parts where under $20 at napa

Re: 1972 Chevy C10 Perplexed
 

Welcome to the site.

Re: 1972 Chevy C10 Perplexed
 

I replaced the relay on the side of the ac box and checked the resistor inside the box. No help. The wiring checks out too. Am I missing something?

Re: 1972 Chevy C10 Perplexed
 

I beleive that the high side of the fan is straight to the fan from the switch??? tht was the only spped mine would work when I started working on mine