A/C Bypass Serpentine Belt
Hey, all.
My AC hasn't worked in forever, and I have decided to never fix it, because it's just not worth it. However, I was thinking it may be worthwhile to get the AC-less serpentine belt, for fuel economy.
I ran a search, but only found one thread that touched on this. The other person said he also bought a pulley. Am I correct in thinking that I also need to get a different pulley for the AC-less serpentine? Thanks for your help.
My AC hasn't worked in forever, and I have decided to never fix it, because it's just not worth it. However, I was thinking it may be worthwhile to get the AC-less serpentine belt, for fuel economy.
I ran a search, but only found one thread that touched on this. The other person said he also bought a pulley. Am I correct in thinking that I also need to get a different pulley for the AC-less serpentine? Thanks for your help.
In my past experiences, (though none being on a Blazer) all I did was measured the diameter of the a/c pump pulley and subtracted that amount from the length of the stock belt. Then I relied on the patience of my good friend who works at the local parts store to pull a few belts in that range of length, cause this length is just a starting point (+/-) an inch or so. When you do find the correct belt, tear that belt # off the package and keep it in the glove box for future reference. (And to let the rest of us know!) Hope this is somewhat helpful!
In my past experiences, (though none being on a Blazer) all I did was measured the diameter of the a/c pump pulley and subtracted that amount from the length of the stock belt. Then I relied on the patience of my good friend who works at the local parts store to pull a few belts in that range of length, cause this length is just a starting point (+/-) an inch or so. When you do find the correct belt, tear that belt # off the package and keep it in the glove box for future reference. (And to let the rest of us know!) Hope this is somewhat helpful!
@96Blazernut: I replied. Thanks for helping out.
I had one of the guys here ask me to post a couple pics of the A/C Bypass that I have. So I went to the storage building to go get it. This item bolts in the place of your A/C compressor. This will work on 96 and up 4.3's as the 95's have the compressor on the opposite side of the engine. This allows you to keep your current belt. I had bought this last year as my A/C compressor had some bad bearings and was locked up. I used it for a couple of months till I got a replacement compressor. This item is for sale too. $35 shipped
This would be great on a mud buggy or any 4.3 that you dont care if the A/C works
Here are some pics.

This would be great on a mud buggy or any 4.3 that you dont care if the A/C worksHere are some pics.

Last edited by 96Blazernut; Mar 7, 2010 at 01:23 PM.
If I can just get a little free cash, I might buy that from you.
I have a question, since you did try it out. Did you get any noticeable performance and/or fuel economy gains during the time you used it?
I have a question, since you did try it out. Did you get any noticeable performance and/or fuel economy gains during the time you used it?
Happy* to be here "Blazer Forum.com" now i know about the Air Conditioning Bypass Pulley! is it possible tho to replace the ac serpentine belt with the no ac serpentine belt ? This way my blazer would be fixed and i wouldn,t have to buy Air Conditioning Bypass Pulley that now costs $45 any comments or help is welcome thanks"




