Question about 1999 Chevrolet Silverado 1500

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Chevy silerado 1500 350 v-8 where do

Chevy silerado 1500 350 v-8 where do i hook up the 134a refridgerant to the airconditioning system?

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On the low pressure side of your system. The high pressure is by the battery on the aluminum tube hooked up to the radiator. Not that one!! But the other aluminum tube hooked up to your firewall going into the cab. Both of em looks alike. Is a quick coupler fitting with a black cap on it.

Posted on May 06, 2010

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Posted on Jan 02, 2017

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Why does my heater only blow hot air?


if only blows hot from defrost location only, then there is a vaccum leak from intake manifold to the selector switch. or the vaccum selector switch is defective. if it is a electric selector switch then the mode door is broken, common issue. when the truck if first started, is there a repetive clicking noise? if so then it would be the mode door being broken, warrenting having to remove the dash and recovering of the air conditioning refridgerent, or freon, r-12, or r-134a as this year is R-134a, draining coolant as heatercore needs removed, and removing the entire heating and airconditioning unit, located behind dash on passanger side, disasembling and replacing door. if clicking noise is pressent and time and money, and certified air conditioning mechanic not available, then finding the mode door actuator, or electric motor that turns the door, and unplugging it will cause the noise to stop, but forever have no airconditioning, as default location is defrost. if able to select from defrost to panel or floor location but heat only, then blend door is broke. i believe mode and blend door are same part number, but might not.
also check for recalls and tsb's, or technical service bullitions, as might help fix it. recalls are free, and tsb's are only to help you diagnose the problem, and you would have to pay to have fixed or fix yourself, but having to evacuate and recharge air conditioning system and haveing to have the special tools to remove ac lines it may be a job best suited for a professional. GM UPFITTER Technical Bulletins GM RECALL CENTER

Sep 12, 2014 | 1997 Chevrolet Blazer

1 Answer

My lincon is bloweing nothing but hot air what could be roung


Well for the airconditioner to work you will need freon 134a.You will also have to inspect for leaks at the air conditioning hoses. If your low on freon the system wont turn on if you full of freon then a low pressure switch or high pressure switch or even the airconditioning pump maybe the solution

Mar 10, 2012 | 1996 Lincoln Town Car

1 Answer

New compresor and condenser. aircondition do not work


has it been converted to 134a if so did you put a new orfice ,dryer ,did e-vac the system before charging

Jul 11, 2010 | 1996 Cadillac DeVille

1 Answer

How to recharge a 2005 volvo s40 with r-134a


hook up an ac machine to the low side port only which is located behind the passenger side headlamp in the engine bay. evacuate the system then vacuum it for 15 min then recharge it with the specified amount of refridgerant. there should be a yellow sticker in the engine compartment telling you how much to add

Nov 19, 2009 | 2005 Volvo S40

2 Answers

No air conditioning-needs recharge- with what?


There are a lot of products out there for recharging cooling systems. R-134a is the current coolant that is being used. Wal-Mart and most other parts stores will have an easy to use recharging kit built for r-134a ready systems (a 1998 would have the proper seals and oils).

Jul 16, 2009 | 1998 Ford Contour

2 Answers

Can i add refridgerant to ac on my own?


As long as your system uses r-134a and you are able to locate the low pressure side of the AC there should be no problem. Personally I have found that my local Big lots is the cheapest place to purchase the refrigerant. Something to think about before adding refrigerant is to make sure it needs it by either hooking up a gauge and checking the pressure. The easiest and least expensive way to do this would be to purchase the refrigerant with the gauge and hose for filling the AC attached.

Jun 26, 2009 | 1999 Volvo V70

1 Answer

How to charge A/C step by step


1 discharge system to recovery tank
2 apply vac to remove any moisture
3 leak check system and repair any leaks
4 charge system with 134A gas and recheck for leaks
5 add 134A to specs and run system to verify proper operation.

May 28, 2009 | 1999 Chevrolet Lumina

3 Answers

What recharge A/C refrigerant is used for a 1999 Chevy S10 pickup


On a 1999 s-10, your correct refridgerant is r-134a. I don't understand why wisconsin won't allow you to purchase r-134a at a auto parts store. R-12 is the refridgerant that has been banned in the US, and requires ASE air conditioning certification to purchase. I've never heard of any law anywhere prohibiting the purchase of r-134a.

Anyway, your system is a r-134a system.

I hope this helps you, and I wish you luck on your repair.

May 04, 2009 | 1999 Chevrolet S-10 Pickup

1 Answer

I need to know what the refridgerant capacity of the air conditioning system of my 1985 F 150 5.0L.


It should be written on a label under the hood. But if you are using 134A instead of R12 only fill the system 85% of the R12 capacity.

May 03, 2009 | Ford F-150 Cars & Trucks

1 Answer

AC Refridgerant


I believe you meant R-12. In a 1995 year vehicle, you do not need R-12. You will need to charge with R-134a refrigerant. If you don't have the proper equipment to recover any refrigerant that is left in the system, I would recommend you take your vehicle to a garage only for the simple reason that if you can't recover the system, you don't know how much refrigerant is already in the system and so you don't know how much to put it to fill the system- and yes, you can overfill it and cause a whole other issue, which will usually result in poor cooling and also run the risk of damaging system components. Even if you know without a doubt that the system is completely empty- such as you had it apart to replace a component- you should evacutate the system for a minimum of 30 minutes to remove any moisture in the system. Moisture reacts with the refrigerant and if trapped in the system, can eat hoses, etc from the inside-out.

Jan 15, 2009 | 1995 Nissan Quest

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