Question about 2004 Chevrolet Blazer

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A/C compressor pulley locked up and spun belt off. Can I replace belt with a belt for an engine without A/C bypassing the compressor altogether?

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As long as you dont might the heat and they make a belt the correct length. You do need to make sure the deflection of the new belt is correct. Its ussually about a 1/4"

Posted on Sep 07, 2009

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It may be possible what your wanting to do but the general approach is to remove the A/C compressor and bracket and replace with aftermarket bracket and pulley and use the same size belt... hope this helps

Posted on Sep 07, 2009

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I have a 1998 Ford Taurus, the A/C Compressor locked up. I want to run a belt bypassing the compressor. What size and length would I need?


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Is there a way to bypass the ac compressor when it locks up for a 04 Chevrolet Malibu classic with a 2.2 engine


I don't know if that vehicle with that engine fitted was sold without air conditioning.

If there was a no aircon version for that engine then you should be able to fit a serpentine belt which has been designed to fit the pulleys on that engine with no aircon compressor. This would work as long as the aircon pulley was well clear of the new belt when fitted.

If you go into the local chev parts dealer they can look up the belt routing diagrams of that engine with and without the aircon and it should be clear from that if you can just fit the shorter belt to your engine and by pass the aircon pulley. They will verify for you that it will fit and supply you with the correct belt. Pretty basic I think.

Jan 10, 2016 | Chevrolet Cars & Trucks

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That desi compressor locked up on a 1996 Chevy pickup the belt broke how can we bypass that compressor is locked up


while the compressor may be locked ,the pulley should be still spinning with the power to the compressor disconnected
it becomes an idler pulley
that way you still use the sstandard belt for when you replace the compressor.

Jul 09, 2015 | Cars & Trucks

1 Answer

Bypass ac compressor with shorter serpentine belt 2001-02 Mercury Sable LS


Because in most cases the routing will not work without the pulley for the compressor being in use. That's why some engines have a dummy pulley available to use in place of the compressor.
Not using the compressor pulley can cause the belt to drive a pulley the wrong direction, or not have the grooved side of the belt on a pulley.

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Can we fix the heater and defrost in a 2001 Isuzu Rodeo LS without the AC compressor


You may be able to remove compressor and purchase a pulley with an arm that atttaches to the block in place of compressor. Or remove compressor altogether and install a shorter serpentine belt. Hope this has been of some help.

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2 Answers

The ac compressor is seized .I need to replace belt but I need to bypass the ac pulley.Do i need to buy a bypass pulley?


If the pulley on the compressor will not turn freely, then yes if a bypass pulley exists you would need to use it in place of the compressor.
If the compressor pulley turns but the compressor is locked up, just unplug the compressor clutch.

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Belt broke on 2000 chrylser convertible ac compressor froze i need diagram to show how to bypass it


I don't think you can bypass the compressor.
Chrysler would have to build a model without ac and as far as I know they all have ac.
When they do have an engine without ac they usually have an idler pulley to take the place of the compressor.
Re-routing the belt runs the risk of turning the alternator or water pump in the wrong direction.

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1 Answer

How to change the belt on 1996 pontiac boneville


on the 3.8 liter v6, the pulley on the a/c compressor can be replaced if it is locked up (frozen) on the compressor. the question is what is actually locked up? if the a/c compressor is locked up but the a/c compressor pulley turns, then you need to disconnect the wire harness connecter that is on the a/c compressor pulley/clutch so you can run the defrost on the climate control. many GM cars will run the a/c when you switch the climate control to defrost especially in the winter so the a/c system stays lubed and does not lock up the a/c compressor from lack of use. you can then relace the belt without replacing the compressor pulley/clutch assembly. if the compressor pulley/clutch assembly is locked up, it will need to be replaced. i do not believe there is a way to route the belt bypassing the a/c compressor. you dont want the water pump turning in the wrong direction if you reroute the belt wrong or the engine will overheat. i hope this helps!

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2 Answers

My AC compressor went out on my 2004 Chevy Blazer. Since winter is here, I just want to bypass the ac. I bought a belt for the same yr/make without ac. Where can I find a serpentine belt routing diagram to...


its the same. but a different pulley takes place of the a/c compressor. I know DORMAN makes a few "bypass pulleys" to do this, but dont know if they make one for your truck. at the worst... you will need to get a pulley and bracket from the dealer for a truck without a/c . as long as your a/c pulley bearing is ok, you can let the belt run there.

Oct 14, 2009 | 2004 Chevrolet Blazer

2 Answers

A/c mount broke off the actual compressor, no way to attach to engine mount, has a serpentine belt , can i get a belt shorter that will bypass the ac.


You can buy an A/C bypass pulley from an O'reilly auto or anyone that supplies Dorman parts. the pulleys are cheap and allow you to mount things and use the stock serp belt. You will have no AC ,though. The kit is designed with the intent of eliminaing the compressor, which is very expensive to replace.

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