A/C expansion valve
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Senior Member
Joined: Feb 2017
Posts: 148
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From: san diego
A/C expansion valve
so I went to get the a/c recharged. And the tec told me that my expansion valve is bad it pulls a vacuum or something it won't blow cold. He only does recharges. Now is that a easy thing to replace or not? Also where is it located? It's a 1999 XJ8L
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Joined: Feb 2013
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From: Trying to escape Central Florida
Have you done a site search? There are many threads on it and you'll need to review them to determine just cause for replacement of the valve. Here are two examples from "A/C expansion valve" search....
https://www.jaguarforums.com/forum/x...please-184342/
https://www.jaguarforums.com/forum/x...cement-181596/
If you don't have it, copy this to your favorites.. JagRepair.com - Jaguar Repair Information Resource ..go to Site Search, type in X308 expansion valve and open the Jaguar Climate Control #703, reference pages 1.4.6, 2.2.2 and 2.2.5. You'll want to go through it a bit more and compare what is in those threads with the technical layout in the pdf.
https://www.jaguarforums.com/forum/x...please-184342/
https://www.jaguarforums.com/forum/x...cement-181596/
If you don't have it, copy this to your favorites.. JagRepair.com - Jaguar Repair Information Resource ..go to Site Search, type in X308 expansion valve and open the Jaguar Climate Control #703, reference pages 1.4.6, 2.2.2 and 2.2.5. You'll want to go through it a bit more and compare what is in those threads with the technical layout in the pdf.
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Senior Member
Joined: Feb 2017
Posts: 148
Likes: 17
From: san diego
Thanks I'll look into that today. But I'm probably going to take it to a a/c specialist to have him diagnose it. And when I find out more I'll post back on this thread. Thanks again
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From: Kansas City USA
Bob had a suggestion worth mentioning on the X300 that should be applicable to the X308 if it is an expansion valve .
I have done this repair a dozen times and I have never had to replace the expansion valve. It takes flushing/persistence and an EVACUATION machine to get all the beads out of the line from the drier to the valve. FIRST REPLACE THE DRIER.
Blow compressed air and flushing solvent back and forth in the disconnected aluminum line and EVAP core. Charge the system with refrigerant. Operate system and evacuate refrigerant if pressures are incorrect and cooling is inadequate.
Blow compressed air and flushing solvent back and forth and charge the system with refrigerant. Repeat as necessary. A few more beads will be expelled.
It is tedious but it is easier (for me) than changing the expansion valve.
bob
Blow compressed air and flushing solvent back and forth in the disconnected aluminum line and EVAP core. Charge the system with refrigerant. Operate system and evacuate refrigerant if pressures are incorrect and cooling is inadequate.
Blow compressed air and flushing solvent back and forth and charge the system with refrigerant. Repeat as necessary. A few more beads will be expelled.
It is tedious but it is easier (for me) than changing the expansion valve.
bob