XF and XFR ( X250 ) 2007 - 2015

AC issue

 
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Old 05-03-2019, 02:33 PM
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Default AC issue

AC not blowing cold, 2010 Jag XF Supercharged. Once i turn the AC to lowest setting air gets cold, and then i adjust the temp. It will then continue cooling/running as it should. Could this be the direct pressure sensing valve failing? Many thanks.
 
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Old 05-18-2019, 04:41 PM
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Id be interested to hear if anyone has had their pressure sensing valve replaced?

https://www.google.com/amp/s/www.car...1420681139395/
 
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Old 05-18-2019, 04:57 PM
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Originally Posted by lotusespritse View Post
Id be interested to hear if anyone has had their pressure sensing valve replaced?

https://www.google.com/amp/s/www.car...1420681139395/
It is going to the shop next Friday. Now that it is getting warmer outside here is what I have noticed with the AC. It will cool, but it is slow to cool. Will eventually end up w cold air from vents, but taking longer than it should.
 
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Old 05-18-2019, 05:06 PM
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Originally Posted by Supercharged81 View Post
It is going to the shop next Friday. Now that it is getting warmer outside here is what I have noticed with the AC. It will cool, but it is slow to cool. Will eventually end up w cold air from vents, but taking longer than it should.
Interesting.

On both my Jags, only on occasion, the A/C will blow warm for the first 2 or so miles, and then blow nice and cold for the rest of the trip. And it's pretty rare to do that on my white one. Maybe a couple times since we got it in 2011. On the grey XF, it's done is a few times in the past couple of months of daily driving. All other times the AC blows cold from the get go, and always does a good job.

It seems like that could be an intermittent sensor issue.
 
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Old 05-19-2019, 07:37 AM
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Originally Posted by lotusespritse View Post
Interesting.

On both my Jags, only on occasion, the A/C will blow warm for the first 2 or so miles, and then blow nice and cold for the rest of the trip. And it's pretty rare to do that on my white one. Maybe a couple times since we got it in 2011. On the grey XF, it's done is a few times in the past couple of months of daily driving. All other times the AC blows cold from the get go, and always does a good job.

It seems like that could be an intermittent sensor issue.
I have also been experiencing the same this past month. It will blow warm air while in park but once I get going it will slowly turn into cold air.
 
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Old 05-19-2019, 09:07 AM
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I experienced a on and off issue with my 2010 XF A/C and I took it to Jaguar and they fixed it. What they said was that the A/C was over charged. They drained the system then recharged the system using the weight of the coolant and not the pressure readings we are so familiar with.

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Old 05-19-2019, 09:27 AM
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Originally Posted by Gus View Post
I experienced a on and off issue with my 2010 XF A/C and I took it to Jaguar and they fixed it. What they said was that the A/C was over charged. They drained the system then recharged the system using the weight of the coolant and not the pressure readings we are so familiar with.

Gus
JagRepair.com - Jaguar Repair Information Resource
Someone must have bought a can of the DIY refrigerant with the silly little gauge on the bottle that makes you think you're an expert A/C mechanic.

If you find yourself standing in front of those cans wanting to buy one, you know you're about to make things worse. Most of them contain stop leak, which never stops a leak, but has been known to f-up the entire system.

Life has definitely changed. Modern car AC systems have a very small margin for error on amount of refrigerant, either too much or too little, but most people don't know that because the cars from the 70's and 80's weren't so sensitive and they think they are the same now.
 

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Old 06-05-2019, 02:52 PM
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Originally Posted by lotusespritse View Post
Interesting.

On both my Jags, only on occasion, the A/C will blow warm for the first 2 or so miles, and then blow nice and cold for the rest of the trip. And it's pretty rare to do that on my white one. Maybe a couple times since we got it in 2011. On the grey XF, it's done is a few times in the past couple of months of daily driving. All other times the AC blows cold from the get go, and always does a good job.

It seems like that could be an intermittent sensor issue.
Did you ever find the solution? On my 12 XJ, I'm having the same issue as you described. The first couple miles or when it's idling it blows warm air. I thought it was low on refrigerant, I got it recharged for $130. Turns out that wasn't the issue, it's still blowing warm first couple miles. Reading all the complaints regarding the Direct Pressure Valve, I ordered one for $135. Now seeing your replies as well as others on this post describing the exact issue is giving me second thoughts to the Pressure Valve replacement.
 
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Old 06-05-2019, 04:41 PM
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The local shop I took it to claimed they could handle checking the AC system on a Jaguar. It turns out they were clueless on JLR vehicles and identified nothing. The vehicle is going to the local Jaguar dealership this Friday. I will post results as soon as I find out. Be aware there is a TSB that covers 2010 to 2016 for the Direct Pressure Sensing Valve as it must be prone to failure. TSB JTB00380NAS4
 
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Old 06-06-2019, 11:28 AM
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My XF-R is doing this as well. I'm going to have the dealer check it out.
 
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Old 06-10-2019, 06:22 PM
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AC issue resolved. Jaguar dealer confirmed my AC issue was indeed due to the failure of the direct pressure sensing valve. Work was performed under the previous mentioned TSB, consistent cold crisp air has returned. 450 dollars to sort out.
 
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Old 06-11-2019, 05:59 AM
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Old 06-11-2019, 10:31 AM
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Originally Posted by Supercharged81 View Post
AC issue resolved. Jaguar dealer confirmed my AC issue was indeed due to the failure of the direct pressure sensing valve. Work was performed under the previous mentioned TSB, consistent cold crisp air has returned. 450 dollars to sort out.
That's good to hear. And not a bad price for the work. The TSB says the compressor has to be removed to change the sensor. If that's the case, I am just going to DIY and just put a new compressor since I can buy a complete kit with new sensor and dryer for around $400.

https://www.coolairparts.com/index.p...roduct_id=4155

I just did a compressor change on my Lamborghini, so any other car will seem easy compared to that one!
 
 
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