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How to Replace the TX Valve in the AIR CON

Eav00l

By Eav00l,
in General Maintenance

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Eav00l Proficient

Eav00l

Posted
Posted

Hi all, my TX valve is blocked, and i have no idea where it is or what it looks like, im told it will either be in the engine bay or under the dash.

Does any one know/how i can get instructions/help on this issue for relitivley cheap? i know replacing this valve if its under the dash is a pain in the butt and can be expensive, but sumnmers coming and i cant wait any longer.

if you are in sydney and have done this before i will pay you to help me do it.

Thanks all

Craig

CMS Drifter Experienced

CMS Drifter

Posted
Posted

In the R33 the air-con evaporator core is behind the glove box.

Remove the glove box

Unplug anything that connects to it

Remove the 2 black clips that keep it together. (one on each end)

Undo both lines into it. (from engine bay)

should just pull out.

The TX valve sits on the core

Fast Dave Explorer

Fast Dave

Posted
Posted
i think you would need a professonal to do this as it is part of the air conditioning sealed system.

i could be wrong though.

yer best to get a pro.. as u sed its a sealed system and u dont want any moisture in there. plus u have to take all the gas out and vac it.

Fast Dave Explorer

Fast Dave

Posted
Posted
yea i know, but its goonna cost big buks if i can remember i had a VL that needed 1 and it was gonna cost like 600 to fix it...

hmmmm ill do the ring around

just get in there with a 12" and bash the **** out of it to see if it opens up.. its either stuck or blocked so just whack it :(

CMS Drifter Experienced

CMS Drifter

Posted
Posted

Once you pull out the glove box you will see...

There are a couple bolts that hold the unit onto the firewall, and jus the clips that join it to the other ducting.

A plug here or there on it too.

It is simple to get out, if you have a bit of a clue you will find it easy too.

SKYBEE Collaborator

SKYBEE

Posted
Posted

well as being as air con fella my self ive found that a air con system i presurised so if you gunna go crackin valves or fittings be prepared for a lot of cold cas and a bit of oil exiting the system

i would get a pro to vac the system a colect the gas

it aint hard but there probaaly is a reason its blocked as in something got stuck in it

so you might wanna look into it a bit more than just replacein a tx valve

just my thoughts thats all

  • 2 weeks later...
Eav00l Proficient

Eav00l

Posted
  • Author
Posted
well as being as air con fella my self ive found that a air con system i presurised so if you gunna go crackin valves or fittings  be prepared for a lot of cold cas and a bit of oil  exiting the system  

i would get a pro to vac the system a colect the gas

it aint hard but there probaaly is a reason its blocked as in something got stuck in it  

so you might wanna look into it a bit more than just replacein a tx valve

just my thoughts thats all

thanks mate, but how much u rekon it would cost?

  • 3 weeks later...
mickr33 Community Regular

mickr33

Posted
Posted

when i first bought my r33 the air con didn't work because it was missing the belt. So replaced it and went to get the A/C regased. The guy at aircon place told me that now the compressor was caktus. I was told this was due to the tx valve blocking up and causing back pressure and resulting in the death of the A/C system. So ended up replacing the tx valve, the dryer unit and the compressor and obviously a regas. All new parts ending up costing 1000. But to me anyway well worth it rather than risking a second hand compressor unit.

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