Mechanics

REPLACE VALVE ON THE LOW SIDE ON 03 CHEVY

2003 Chevrolet Tahoe • 139,000 miles

I found a leak on the valve where you put in the refrigerant. Can I replace just the valve?
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Csbarron28
July 2, 2011.




If it had a schrader type valve core, similar to a tire valve core, then you could probably replace it. I find no procedure for the low side service port replacement, but there is not one for the high side either, and I have replaced those. If the low side is in the accumulator, then it is probably serviced with accumulator replacement.

Factoryjack
Jul 2, 2011.
Maybe you should wait. Maybe till something major is needed!

You're gonna lose your gas if you remove the innards

Why not. Replace you Cover cap with a new one. Soap it down, insure the cap does not leak

Then charge your system (if needed) install the cap again, check for leaks?

$2 VS?$$$$

The Medic

Tiny
CJ MEDEVAC
Jul 2, 2011.
NO, you don't charge a system with a leaking shraeder valve. You don't just remove it and vent the gas either. You repair the problem first by recovering the refrigerant. The cap is a "dust cap" and is not designed to seal anything. Most shraeders are replaceable whether the entire valve threads off or the inner core comes out. Rarely do you have to replace the whole line. Either way it has to be repaired. Serious damage can be done to the system by running it low.

Wrenchtech
Jul 2, 2011.
Worked for the boy with his finger in the ****!

Works on my Neon too!

The seal on the bottom end of the schrader is rubber. So is the "O" ring in the cap!

Yes, Backyard engineering is not what the Dealer would do! The world isn't perfect either!

Sometimes you do what you gotta do!

No one told this feller to dump his gas into the air over Florida. Or anywhere else!

It was just stated the gas would be lost----I really doubt it would be reused, at least until it was refined or whatever they do to it. Being a plumber, I've seen 'em (the HVAC guys) haul off the recovered stuff!

Needless to say. SOMEBODY HAS TO BUY OIL AND GAS, LABOR TOO!

I'm a bit rusty with HVAC.

COULD YOU ENLIGHTEN US, HERE, AS TO WHY IS THERE/ AND WHAT IS THE PURPOSE OF A LOW PRESSURE SWITCH SERVES ON A HVAC SYSTEM. COULD'T THE CAR MANUFACTURERS SAVE MONEY BY LEAVING IT OFF?

Csbarron28, You are not being forced into anything.I just wanted to present you another option. And it is not Evil!

You came here, to find an inexpensive route?

Maybe you are restoring your rig to showroom quality?

It's all yours now. But still other folks could jump in and give their answers too!

Good Luck, and may the "Force" be with you!

The Medic

Tiny
CJ MEDEVAC
Jul 2, 2011.
Nobody wants to have to keep coming in and correcting the irresponsible and incorrect advice you constantly butt in with. You do more harm that good with the nonsense you post.

Wrenchtech
Jul 2, 2011.
We all work togeather take this to messaging guys. You need to get the schrater valve tool and try to tight the valve. Then check the leak.U could replace the valve and still have a leak.A/c hoses werent made to repair. Youll need to replace the hose assy to be sure. Later

Cadieman
Jul 2, 2011.
Thanks for all the responses. Replacec the valve, and its not leaking any more. Added some refrigerant, and its ice cold now.
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Tiny
Csbarron28
Jul 2, 2011.
Good deal ty for using 2 carpros

Cadieman
Feb 11, 2012.

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