Replacing A/C thermo expansion (TX) valve

[zzsteve]

Looking at replacing the TX valve to get A/C working again. After depressurising and retrieving the refrigerant by A/C shop, it looks as through the valve block is accessible by releasing the A/C hose retainer plate high up on the engine side of the firewall according the RAVE. Will this release the the TX valve block entirely or do I need to get at it from the dash side as well? (ugh).
TIA
Steve

[prelude]

I have a wrecker in the backyard and recently removed the AC so I'll make a few pictures for you ;) Not sure where that valve is situated though. It has been suggested to me that it may be broken on my car. I'll post pics in an hour or so.

-P

[prelude]

there you go!

as you can see the interior is completely gone. If you loosen the tubing on the engine compartment side and push them aside, you will find this block sticking out. The rubber you see beneath the block sits on the inside of the car. Loosens the two bolts and the block kan be pried off. There is a metal plate into which the bolts are secured that does come loose once the bolts are taken out, the rubber however should prevent it from falling out. If you take care I see no reason why you can not undo and replace the whole thing from the engine compartment side :)

hope this helps!

-P
127577127578127579

[zzsteve]

there you go!

as you can see the interior is completely gone. If you loosen the tubing on the engine compartment side and push them aside, you will find this block sticking out. The rubber you see beneath the block sits on the inside of the car. Loosens the two bolts and the block kan be pried off. There is a metal plate into which the bolts are secured that does come loose once the bolts are taken out, the rubber however should prevent it from falling out. If you take care I see no reason why you can not undo and replace the whole thing from the engine compartment side :)

hope this helps!

-P
127577127578127579

Brilliant - thanks heaps!

Steve

[TheTree]

It all happens under the bonnet

Of course when you fit the new one you need to make sure you have the correct type of o-rings

It was a pretty easy job in the end

Steve

[banarcus]

I can confirm what Steve said regarding access from the engine bay. Recently replaced and re-gassed mine. Just make sure that you get the alignment right as I had a tiny little leak there when I vacuumed up.