96 Xj6, Where is the expansion valve located ?,,, Thanks

 

The EXP valve is trapped between the engine rear firewall and the evaporator inside the cabin

Motorcarman had a suggestion to hook up compressed air on the engine bay side and blow air in both directions

There is a self test of the system and some easy things to clean before the EXP valve route

This is on page 110 of the following Jajguar 703 doc

T703 BOOK (jagrepair.com)

 

When the desiccant 'beads' escape from the rec/drier, I flush the system and blow compressed air in the EVAP system BOTH DIRECTIONS repeatedly.

 

I'm going to change the compressor & receiver drier, Retired auto mech said I need to change expansion valve at the same time, I have no cooling at all and with 1100 grams of R134 in it I have 0 psi on low side , codes i pulled of where 11,23,43,45

 

The easy thing to clean that is hidden from seeing in a self test is lint build up on the cabin side temp sensor fan

clean with air and a brush only as you don't want to remove the small fan bearings lubricant

It is located by your left knee below the steering column and to the cars left as a 1 inch square with louvers on it

 

There is a rebuild kit real cheap for the Denso 10PA series compressor

Featured Products (shopcenturyautoair.com)


See part 1 and 2

 

Code 11 is your " in car " sensor

With a code 11 the compressor clutch may be disengaging since cooling is not needed at that point in time possibly explaining your servicing pressures on the high and low side

14-10 (jagrepair.com)

Code 43 and 45 have nothing to do with the compressor or TXP valve

The center vent with the red / blue thumbwheel pulls straight out as the whole vent box , don't tug on the center of the louvers as the louvers can break from age

You can manually drive the other door trim motors with a 9 volt battery and leave it in that position for the season

The door trim motors come in different #s for their position

 

With a code 11 the compressor clutch may be disengaging since cooling is not needed at that point in time possibly explaining your servicing pressures on the high and low sides

 

Another question, If it has a expansion valve it shouldn't have a orifice tube should it or vice versa ?

 

The system uses an EXPANSION VALVE. (not an orifice tube)

The expansion valve is NSS. (not sold or serviced separately)

The valve can be 'matched' and obtained from a parts distributor but Jaguar does not sell 'just-the-valve'.

The valve gets 'clogged' with desiccant beads from a failed rec/drier.
You would need to get ALL the beads out of the system with flushing compound and compressed air.

I have probably done this a dozen times over the years.

 

TXP valve is a variable throttle tube opening where a orifice tube is fixed opening

The TXP has a sealed temp bulb filled with a independent gas other then the freon in the system to function regulating the freon flow though the pressure changing device in the carnot process

Someone had a good pic of the TXP valve on the X300 as it has been dug out , but a lot of work

Pic coming

 

It looks in this form on the X300

The exact pic is somewhere as someone mukti photo documented his removal adventure

 

Ok heres update, New compressor, New receiver dryer, new High pressure hose, Flushed system (Lots of beads out of evaporator core) temp out of ducts drops right down to 40deg now

 

" Lots of beads out of evaporator core "

Probably had some in the thermoexpansion valve as you blew in that direction as the larger low pressure line exiting the smaller high pressure line as this is opposite the normal freon flow

Thank Motorcarman ( Bob )