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How Difficult Is It To Remove The A/c System?

99-1500

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99-1500 Enthusiast

99-1500

Posted
Posted

The A/C on my Silverado quit this fall. I believe that the clutch quit because it is not cycling. I am thinking of removing m A/C altogether because I don't use it enough to justify the cost of repairing (even if I do it myself). It is almost 11 years old, has 196k miles, and I plan on keeping it until she quits, so I am not concerned about resale. Reading through my repair manual, it appears that it will take some work, but the only thing that I will need a professional for is to evacuate the refigerant from the system. I can then remove the compressor, condensor, evaporator, lines, etc., finally installing the smaller drive belt. How feasible is all this? If I pull all of this, does it affect the heater core in any manner?

jblakeney Senior Enthusiast

jblakeney

Posted
Posted
The A/C on my Silverado quit this fall. I believe that the clutch quit because it is not cycling. I am thinking of removing m A/C altogether because I don't use it enough to justify the cost of repairing (even if I do it myself). It is almost 11 years old, has 196k miles, and I plan on keeping it until she quits, so I am not concerned about resale. Reading through my repair manual, it appears that it will take some work, but the only thing that I will need a professional for is to evacuate the refigerant from the system. I can then remove the compressor, condensor, evaporator, lines, etc., finally installing the smaller drive belt. How feasible is all this? If I pull all of this, does it affect the heater core in any manner?

 

What Engine do you have 4.3??? 4.8, 5.3, 6.0, 8.1's Have SEPARATE BELTS!! If you have the 4.3 I think their is a bypass pulley available. I am not at work or I would look it up.... If they have one listed it will replace the a/c compressor and maintain the correct belt number...

 

Jbo

00_Extended Enthusiast

00_Extended

Posted
Posted

If you know it quit then maybe you use it more than you think. What year truck? It's usefull for mixing the air and heat to better defog/defrost the windows. A/C repairs if even done your self are that hard, you may just have problem witha switch or low on pressure if it's not cycling. $10.00 in freon might answer that question.

 

Also if you remove it you may loose your heat since the systems are combined starting at the firewall.

99-1500 Enthusiast

99-1500

Posted
  • Author
Posted
If you know it quit then maybe you use it more than you think. What year truck? It's usefull for mixing the air and heat to better defog/defrost the windows. A/C repairs if even done your self are that hard, you may just have problem witha switch or low on pressure if it's not cycling. $10.00 in freon might answer that question.

 

Also if you remove it you may loose your heat since the systems are combined starting at the firewall.

 

That is one of my main concerns- from what I was reading in the repair manual, it appears that it does affect the heater core, which was one of the reasons why I posted. Affecting the heat would definitely be an issue. I guess I will have to think this one through a little further. Thanks.

knipper_03 Enthusiast

knipper_03

Posted
Posted

I would suggest leaving it or fixing it.

 

But it doesn't "mix" the air. What happens is the a/c comes on during the defrost cycle in order to dehumidify the air. By lower the temperature of the air, you reach the dew point and the water condenses at the evaporater (stacked next to the heater core). Then you REHEAT the air using the heater core. So by "wringing" moisture out of the air and reheating it you are getting rid of the humidity in the air. This more dry air allows the moisture on the inside of your windshield to evaporate much faster.

 

If there's moisture on the inside of the windshield humid air inside the cab is condensing against the cold glass caused by the outside temperature being cooler than the dew point of the air inside the cab

 

You'll notice on a hot summer morning when you have your air conditioning running the temperature of the air inside your cab is cooler than the dewpoint of the air outside and that makes water condense on the outside of your windshield, good thing there is you have windshield wipers!

c4cruiser Enthusiast

c4cruiser

Posted
Posted

The A/C runs in Defrost mode to help remove moisture in the cabin. The A/C also helps to dehumidify the cabin when the outside humidity is high.

 

IMHO, it's worth the time and effort to keep the A/C system running.

fm2176 Enthusiast

fm2176

Posted
Posted
The A/C runs in Defrost mode to help remove moisture in the cabin. The A/C also helps to dehumidify the cabin when the outside humidity is high.

 

IMHO, it's worth the time and effort to keep the A/C system running.

 

Seconded, the A/C is worth fixing just to keep the windshield clear. I never noticed how much it helped until I had a friend buy a 202 Kia without A/C; every time it rained we had to keep the windows cracked to keep the windshield from fogging up. Most modern defrost settings automatically cut the compressor on, having an inoperable A/C system will decrease the effectiveness of your defrost/defog.

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