Question about 1995 Cadillac DeVille

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Air conditioning compressor by pass on 95 deville

1995 caddy deville 4.9L ac compressor BYPASS BELT routing diagram

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE:

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Posted on Jan 02, 2017

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billyd1973
  • 73 Answers

SOURCE: my ac wont get cool.......it blows hot air and(caddy seville 95)

Below is a guide to troubleshoot and check system function. This can be done by most folks.

Look at the front of the ac compressor and have someone turn on the ac from inside the car. The front of the pulley(clutch) will spin when turned on.

If it does not spin, the low pressure switch (LPS) is not satisfied. Meaning there is not enough freon in the system to operate the system. Means low freon capicity because of a leak.

The LPS can be jumpered to cause the compressor to run (clutch to engaged) which will draw the freon in the system.

The LPS is usually a two wire sensor on the suction of the compressor. (between evaporator and compressor) Unplug the sensor and install a jumper, this will engage the clutch. Connect a new can of freon
and fill to system capacity.

The capacity of the ac system will be on a label under the hood, do not overfill. Probably about 2 lbs. Local parts stores (Auto Zone and Advance) will have freon with stop leak. This may help the leak. They also make a freon with a UV dye. I always add a single can with dye so that if stop leak does not work I can find the leak in the future.

The system should be filled until suction pressure is about 30 to 38 psi..

Remember the flow for the a/c system is :
1. From the compressor a high pressure (HP) gas goes to the condenser in front of the radiator.
2. From the condenser a HP liquid goes to an expansion device (orifice tube or expansion valve)
3. From expansion device the low pressure gas enters the firewall to the evaporator.
4. From evaporator the low pressure liquid/gas mixture goes through the dryer2_bing.gif back to the compressor suction.

Posted on May 29, 2010

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steve1267
  • 233 Answers

SOURCE: 1995 Calillac Sedan Seville's A/C Compressor

It is possible. What you have to do is gat a belt for a vehicle that has the same engine as your car but with out A/C. It will have to be a Chevy or some other GM brand other than Cadillac. You cannot get a Caddy without A/C. I would go to a junk yard and look under the hood of a few cars. Some times even though the engines are the same the acessories may be in different places. When you find something with the same engine and acessories in the same place and no A/C just get a new belt for that car and put it on yours. You may have to remove your A/C compressor to make this work. Good Luck.

Posted on Jul 21, 2009

OhioTrucker
  • 33 Answers

SOURCE: Replacing a 1991 cadillac sedan deville air compressor

The lines should be differant sizes.. Did you check it? Ther should be a diagram on the cover over your radiator showing you the set up.. Hope this helps..

Posted on Aug 26, 2009

ZJLimited
  • 17970 Answers

SOURCE: Firing diagram for 1990 caddy sedan deville front wheel 4.5?

To avoid confusion, remove and tag the spark plug wires one at a time, for replacement.
If a distributor is not keyed for installation with only one orientation, it could have been removed previously and rewired. The resultant wiring would hold the correct firing order, but could change the relative placement of the plug towers in relation to the engine. For this reason it is imperative that you label all wires before disconnecting any of them. Also, before removal, compare the current wiring with the accompanying illustrations. If the current wiring does not match, make notes in your book to reflect how your engine is wired.

55492de.jpg

4.5L and 4.9L EnginesEngine Firing Order: 1-8-4-3-6-5-7-2 Distributor Rotation: Counterclockwise

Hope helped with this (remember rated this help) Good luck.

Posted on Nov 10, 2009

  • 98 Answers

SOURCE: Serpetine Routing Diagram for a 1995 Sedan Deville

here you go.fbe1dba.gif

Posted on Nov 11, 2009

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2 Answers

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

1 Answer

Can u eliminate ac compressor on 95 sedan deville 4.9


If you can find a by- pass kit,but why

The car is far from new & I wouldn't spend money
doing that, if the clutch turns,nothing saved or gained
doing so.

Try the internet or auto parts store for a kit,I doubt you
will find one for a caddy

Nov 23, 2012 | 1995 Cadillac DeVille

2 Answers

How to bypass the ac pulley on a 2003 hyundai sonata


2008 Hyundai Sonata 2.4L bypassed the AC compressor using the above routing picture and used Duralast 805K6 belt from AutoZone.
4_17_2016_5_44_20_pm.jpeg

Sep 03, 2012 | Hyundai Santa Fe Cars & Trucks

1 Answer

What length serpentine belt do i need to bypass the a/c compressor on a 1994 cadillac sedan deville concours?


best bet is to get 2 sizes bigger and 2 sizes smaller , if not keep yrying theres no number as all caddys came with ac usually

Mar 27, 2011 | 1994 Cadillac DeVille

1 Answer

The serpentine belt routing diagram for a 95 mercury grand marquis. What belt do I need to bypass the AC pulley?


Rather than by pass the AC pulley You can actually buy a dummy pulley. It has the same position and size as the the AC pulley but has a frame instead of the AC assembly. In this way you can remove the A and keep all belts etc. the same. The following site has a diagrams for the '95 marquis belt route:- http://www.bestvalueautoparts.com/Replacement_Parts/MERCURY/GRAND_MARQUIS/Illust_c_Belt_Routing.html

Oct 27, 2010 | Mercury Grand Marquis Cars & Trucks

1 Answer

How to by pass the a/c compressor?and which size belt should i get


Just check the difference...

1994 CADILLAC DEVILLE - V8 4.9L 300ci GAS FI N B
Belt Routing Diagram - Multiple Accessory, w/Heated Windshield
5bb89d3.jpg

Belt Routing Diagram - Multiple Accessory, w/o Heated Windshield
6f7ba63.jpg

Hope helps with this.

Dec 18, 2009 | 1994 Cadillac DeVille

1 Answer

1995 Calillac Sedan Seville's A/C Compressor


It is possible. What you have to do is gat a belt for a vehicle that has the same engine as your car but with out A/C. It will have to be a Chevy or some other GM brand other than Cadillac. You cannot get a Caddy without A/C. I would go to a junk yard and look under the hood of a few cars. Some times even though the engines are the same the acessories may be in different places. When you find something with the same engine and acessories in the same place and no A/C just get a new belt for that car and put it on yours. You may have to remove your A/C compressor to make this work. Good Luck.

Jul 21, 2009 | Cadillac DeVille Cars & Trucks

3 Answers

Bypassing air compressor in a chevy 95 g20 van


Well if you're trying to bypass the air conditioning compressor, your original serpentine belt will obviously not work as it will be too long. Installing another pulley would really be more work that it's worth and likely cost a fair amount since you'd have to have a custom bracket made, or a mount to fit in place of the compressor. Your best bet would be to have your local parts supply look up the belt for the same make, model, year and engine specs as your vehicle but without Air Conditioning. The g20 uses all the same mounting locations for other belt driven accessories regardless of the presence of an AC compressor. Therefore, the belt should fit just fine. Also, you should spot on the belt routing diagram under the hood that it shows the optional routing for a belt without AC. (It does on mine anyway) Good luck and let me know how it goes.

Feb 06, 2009 | 1993 Chevrolet G20

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