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  • 2 Post By matt5112

Possible DIY A/C Bypass

This is a discussion on Possible DIY A/C Bypass within the General Tech Discussion forums, part of the W Body Tech category; My A/C's clutch is going pretty damn bad, I can hear it scratching/grinding when the A/C is off, and when ...

  1. #1
    GT Level Member nik12937's Avatar
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    Question Possible DIY A/C Bypass

    My A/C's clutch is going pretty damn bad, I can hear it scratching/grinding when the A/C is off, and when it used to turn on it would whirr and almost make a hooting noise. The system has a leak somewhere so the A/C doesn't work or more than a week anyways if you refill the refrigerant.

    Since it's getting closer to winter and colder temperatures, I'm waiting for more towards the summer to replace the entire system the correct way as I'm a little short on cash right now, and I had the idea of simply removing the clutch but leaving the bearing and pulley in place (if the bearing is in good shape) so I didn't have to buy a bypass pulley. Save some cash ya know? Plus no local stores sell them around here anymore :/

    Would this be possible? The noise is very hard to ignore if I'm not playing music constantly, and occasionally at WOT shifts my belts squeals for a split second as if it gets hung up on the A/C, and I really don't want to shred a belt.

  2. #2
    Moderator BillBoost37's Avatar
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    Default Re: Possible DIY A/C Bypass

    I think the cluch/bearing and pulling tool are more expensive than buying a bypass.


    If Dave feels 60% throttle is 100%, what does he tell his wife.

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    I live here. TLSheff's Avatar
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    Default Re: Possible DIY A/C Bypass



    DORMAN Part # 34195

    Part is on RockAuto or at most local Auto Parts Stores. +/- $50.00

    I have one for my Bonnie, made things so much easier when the AC locked up, didn't use it very often anyways and gave me time to save up money to fix it right.

    Quote Originally Posted by AmericanSoldier View Post
    ...not scanning/monitoring your motor is like bangin a hooker and you just HOPE your not infected.

  4. #4
    Pretty colours matt5112's Avatar
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    Default Re: Possible DIY A/C Bypass

    Ninja'd?

    Picture wasn't right at first, then i post the part number, then magically the picture is right.
    Last edited by matt5112; 08-22-2012 at 02:10 PM.

  5. #5
    GT Level Member nik12937's Avatar
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    Default Re: Possible DIY A/C Bypass

    I was afraid to hear that. I did a quick Google search and had noticed the cheapest was like $50-60, so you pretty much confirmed that suspicion.

    Would it damage anything to just put in a used compressor from Morad's and take out the A/C fuse until I have the cash for the other parts? The orifice tube and the other part whose name I can't recall... the evaporator or condenser?

    I've noticed on most threads here everyone recommends replacing the whole system, and I'm not completely sure why because I know to have the system vaccuumed out before filling, so I feel like that would clear everything out.

    I bet I'm mistaken though, I've gotten pretty good with suspension/electrical/body work, but I'm just getting into the drivetrain and all the accessories that run off it. I'll admit, I've really "fallen" for GP's.

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    Default Re: Possible DIY A/C Bypass

    its just standard practices to change the orifice tube and dryer and what not. usually when a compressor goes bad it dumps crap into the rest of the system, then you put the new compressor on and it gets killed real fast.

    not sure if thats all needed if just the clutch has gone bad, i would think not in the long run.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails and a bone stock engine. http://www.grandprixforums.net/scott...-gs-47574.html

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    Pretty colours matt5112's Avatar
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    Default Re: Possible DIY A/C Bypass

    for warranty many pieces need to be replaced.

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    Default Re: Possible DIY A/C Bypass

    Quote Originally Posted by matt5112 View Post
    Ninja'd?

    Picture wasn't right at first, then i post the part number, then magically the picture is right.
    Initial google search landed me on a 3.1 bypass and I kept thinking after I posted that it didn't look quite right, so I searched more and found the right one and right price.

    Quote Originally Posted by AmericanSoldier View Post
    ...not scanning/monitoring your motor is like bangin a hooker and you just HOPE your not infected.

  9. #9
    Pretty colours matt5112's Avatar
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    Default Re: Possible DIY A/C Bypass


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    GT Level Member nik12937's Avatar
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    Default Re: Possible DIY A/C Bypass

    My face lit up when I saw that price, no joke. Even a used compressor from Morad Parts is about $75, so I wasn't sure if I should just jump up about $20 to one and just not use it until the whole system was replaced. But for that price^ plus free shipping, I may wait on the compressor.

    I live in Northeast PA so our average high's are anywhere between 70-85 right now. I'd like to have the AC, but I'd only get a good use out of it for a few weeks (if it was even safe to run after only replacing that), then it's going to slowly turn back into a winter wonerla... uh... who am I kidding, hellhole. Luckily my GP doesn't have any problems in the snow, it's other people under estimating how long they need to stop or how slow to take corners that worries me every year.

    Any of you guys ever live/visit PA? Not a bad state overall, but our roads suck so much, all the time. Winter is random frozen patches everywhere they souldn't be (like before a bridge, but not on the bridge), and the rest of the time it's pot hole filled roads because the dudes at PennDOT get paid to stare at one guy drive a steamroller

    Edit: Both Amazon and Dorman do need to do a little twice over on their "part fitment guides" though, according to Dorman, it will fit 3.8L V6's, but only up to 98. Uuhh, maybe I'm wrong, but I'm pretty sure all the 3800's in GP's have the same pulley layout...
    Last edited by nik12937; 08-22-2012 at 03:12 PM.

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    I live here. Scottydoggs's Avatar
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    Default Re: Possible DIY A/C Bypass

    i got the same roads here in NJ. it fun dodging pot holes.

    riddle me this why is that some highways are beet red? and i say beet because im thinking they are using beet juice for ice melt and it stains the road ways. very odd how it just starts and stops, like you just crossed county lines, towns or something.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails and a bone stock engine. http://www.grandprixforums.net/scott...-gs-47574.html

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    Default Re: Possible DIY A/C Bypass

    Quote Originally Posted by nik12937 View Post
    My face lit up when I saw that price, no joke. Even a used compressor from Morad Parts is about $75, so I wasn't sure if I should just jump up about $20 to one and just not use it until the whole system was replaced. But for that price^ plus free shipping, I may wait on the compressor.

    I live in Northeast PA so our average high's are anywhere between 70-85 right now. I'd like to have the AC, but I'd only get a good use out of it for a few weeks (if it was even safe to run after only replacing that), then it's going to slowly turn back into a winter wonerla... uh... who am I kidding, hellhole. Luckily my GP doesn't have any problems in the snow, it's other people under estimating how long they need to stop or how slow to take corners that worries me every year.

    Any of you guys ever live/visit PA? Not a bad state overall, but our roads suck so much, all the time. Winter is random frozen patches everywhere they souldn't be (like before a bridge, but not on the bridge), and the rest of the time it's pot hole filled roads because the dudes at PennDOT get paid to stare at one guy drive a steamroller

    Edit: Both Amazon and Dorman do need to do a little twice over on their "part fitment guides" though, according to Dorman, it will fit 3.8L V6's, but only up to 98. Uuhh, maybe I'm wrong, but I'm pretty sure all the 3800's in GP's have the same pulley layout...
    Where you at in NE PA?
    1997 Grand Prix GT - The IncREDi-hoopdy (aka Anna Nicole) -Your Not So Typical Top Swapped, XP'ed, IC'ed, 3.4" Pulleyed, SLP header build - 219000 miles and counting - now with broken GETRAG 5 Speed
    http://www.grandprixforums.net/safely-modding-your-3800-a-67580.html

  13. #13
    Moderator BillBoost37's Avatar
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    Default Re: Possible DIY A/C Bypass

    PA... the only state that I've ever seen with a pavement testing truck. No lie.


    If Dave feels 60% throttle is 100%, what does he tell his wife.

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