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Old 07-14-2015, 08:28 AM   #1
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AC bypass!

So my ac compressor was making lots of noise , the bearings in the pulley must have been shot as it was making a metallic type noise even with NO ac on. I got a few quotes to replace it but the prices were just too high especially considering I maybe use my ac twice a year if that. So I found this thread from years back on another forum, Bye-Bye Crappy A/C Delete! - Ford Mustang Forum was pretty damn simple following these instructions. Basically your just using a v6 6 rib pulley and a 70.5 in belt. Putting the 6 rib pulley in place of the smooth pulley attached to the idler arm. Had it installed and working in just 20 minutes. Parts cost me 50$ at autozone..6 rib idler pulley part number is duralast 231051, belt is 6PK1790

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Old 07-14-2015, 08:29 AM   #2
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After picture...also this will only work on the 00-04 with the 1 bolt belt tensioner
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Old 07-14-2015, 09:34 AM   #3
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Buh bye to these...engine bay looks cleaner/simpler..I'll get around to removing the compressor and alll this weekend when I have some more time

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Old 07-14-2015, 09:51 AM   #4
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Buh bye to these...engine bay looks cleaner/simpler..I'll get around to removing the compressor and alll this weekend when I have some more time, this was all done during my 20 min coffee/breakfast break at work haha

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Old 07-14-2015, 10:18 AM   #5
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I'd do this if it didn't get hotter than satan's taint in the summer here sometimes...

That looks really good tho and great write up for those without the one off 99 covers anyway...
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Old 07-14-2015, 10:40 AM   #6
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Now pull the AC and save 30-35lbs


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Old 07-14-2015, 11:38 AM   #7
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I'd do this if it didn't get hotter than satan's taint in the summer here sometimes...

That looks really good tho and great write up for those without the one off 99 covers anyway...
Lol ugh I know, but I really hated the a/c in this car anyway, my convertible did NOT hold in cold air very well, and it has always seemed so much slower in the lower RPMs with the compressor on that I never liked to used it anyway.

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---------- Post added at 11:37 AM ---------- Previous post was at 11:37 AM ----------

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Now pull the AC and save 30-35lbs


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This weekend it is coming out!
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Old 07-14-2015, 11:40 AM   #8
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The only answers I've found on here and pretty much everywhere is having to use the AC delete kit. Doing it this way is so much nicer, not only are you saving a pretty decent chunk of $$, but also getting rid of dead pullies doing nothing, giving you much more room in there and much less traveling of the belt
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Old 07-14-2015, 11:56 AM   #9
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I never really noticed a power loss and the AC in my SN95s always got REALLY cold. The Ac in that 98 I just sold could get TOO cold if you can believe it. The AC is supposed to automatically cut off at WOT anyway so even if its on it'll free up any drag when you floor it.
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Old 07-14-2015, 12:50 PM   #10
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I never really noticed a power loss and the AC in my SN95s always got REALLY cold. The Ac in that 98 I just sold could get TOO cold if you can believe it. The AC is supposed to automatically cut off at WOT anyway so even if its on it'll free up any drag when you floor it.
See I've NEVER been able to get it TOO cold in my cabin. Just too be somewhat comfortable on a hot day I've always had to have it on full blast, and than its just too loud and annoying lol..yea I've def ALWAYS noticed somewhat of a power loss with the AC since the day I got the car, I've even had buddies in the car showing them the difference in acceleration from light to light with the AC on vs off, and everyone was able to tell the slight amount of drag it caused. It's always pissed me off lol

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Old 07-14-2015, 01:22 PM   #11
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My 98GT had AC so cold that I would have to close the vent that is in front of your left knee or it would literally start going numb after awhile lol. Sounds like you had a bad condenser or needed a recharge or something.
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Old 07-14-2015, 02:09 PM   #12
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Is that why you had bad knee problems?
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Old 07-14-2015, 02:23 PM   #13
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Lol actually that might have helped for awhile haha.
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Old 07-14-2015, 02:27 PM   #14
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Who needs icy hot when you can freeze the cartilage away?
What are your opinions on the freon refill cartridges? Obviously it is a temporary bandaid
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Old 07-14-2015, 02:49 PM   #15
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My 98GT had AC so cold that I would have to close the vent that is in front of your left knee or it would literally start going numb after awhile lol. Sounds like you had a bad condenser or needed a recharge or something.
I always thought so too, I recharged it last year thinking that. and when the compressor started making noise THIS year i checked it again and it was spot on. I mean my compressor could have been going but it never gave me actual problems untill last week, I have had the car for over 3 years so I doubt the compressor was on its last legs and took over 3 years to kick the bucket, but it is possible I'm sure..I think it has more to do with the vert top, it has air leaks like a mofo, so on super humid days I just think all the outside humidity and heat seeps in fast

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Old 07-14-2015, 03:33 PM   #16
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Now the real question is, what are you going to be doing about evacuating the AC system?

Properly at a shop, or wrap a rag around the connection and pull lmao.
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Old 07-14-2015, 04:41 PM   #17
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Who needs icy hot when you can freeze the cartilage away?
What are your opinions on the freon refill cartridges? Obviously it is a temporary bandaid
They work but if the system is needing a recharge there is a good chance there is a slow leak.

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Old 07-14-2015, 06:38 PM   #18
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Now the real question is, what are you going to be doing about evacuating the AC system?

Properly at a shop, or wrap a rag around the connection and pull lmao.
Wellll thats illegal hahaha..I'm an HVAC tech by day, so I have the proper tools to properly evacuate the system no problem
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Old 07-14-2015, 06:56 PM   #19
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Wellll thats illegal hahaha..I'm an HVAC tech by day, so I have the proper tools to properly evacuate the system no problem
I know it will vary by shop. But how much does it usually cost to evacuate the AC system? I want to pull mine out, but don't really feel like paying someone to evacuate the system. I just want to rip it out.
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Old 07-14-2015, 07:10 PM   #20
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Eh, they say 134a won't do anything to the environment like R12 will. Not that I've ever evacuated R12 either...
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Old 07-14-2015, 09:47 PM   #21
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Just do it what's a little 134a damm we have way more pollution than that anyway just don't get caught

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Old 07-14-2015, 09:49 PM   #22
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But just let me say for my protection it is illegal to let it into the atmosphere I plead the 5th

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Old 07-14-2015, 10:30 PM   #23
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I know it will vary by shop. But how much does it usually cost to evacuate the AC system? I want to pull mine out, but don't really feel like paying someone to evacuate the system. I just want to rip it out.
I actually have no idea, I'm a residential/commercial HVAC tech, nothing to do with automobiles, I just have the equipment at the shop.

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Old 07-14-2015, 10:35 PM   #24
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I know it will vary by shop. But how much does it usually cost to evacuate the AC system? I want to pull mine out, but don't really feel like paying someone to evacuate the system. I just want to rip it out.
The place that did mine (Thermo-King) charged me around $100. They said that they would take care of me when I brought it back to be recharged... And they did!

My AC system was fully functional when I had to evacuate the Freon to replace the heater core. If the system had NOT been functional, I probably would just assume that there wasn't much Freon in the system, and remove the valve.
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Old 07-15-2015, 01:04 PM   #25
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I got one of those recharge kits a while back and it never helped. Couldn't I check to see the pressure with that?


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Old 07-15-2015, 01:18 PM   #26
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I'm mine worked like a champ. Was this before or after your condenser was screwed lol
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Old 07-15-2015, 01:24 PM   #27
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I got one of those recharge kits a while back and it never helped. Couldn't I check to see the pressure with that?


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I don't see why not.
Your system was practically empty when you checked last time, wasn't it?
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Old 07-15-2015, 01:27 PM   #28
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I'm mine worked like a champ. Was this before or after your condenser was screwed lol
Sober up Nate.
It's not even noon yet and you are already not making any sense!
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Old 07-15-2015, 02:32 PM   #29
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Sober up Nate.
It's not even noon yet and you are already not making any sense!
Was supposed to say Hm, mine worked like a champ.

My body does not like it when I have to say up before 11 lol.
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Old 07-15-2015, 04:54 PM   #30
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Sober up Nate.
It's not even noon yet and you are already not making any sense!
Hey it's 5 somewhere... Lol some of the times wed be drinking on the road when I was flying... Sun is just coming up and we are 91st getting going haha.

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