Looking to buy
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Joined: May 2013
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In any 4.2 car, check the passenger footwell for signs that the carpet may have been wet (if you can, lift it & check the underside). The aircon drain in the 4.2s tends to block, causing water to build up in the fan assembly & leak into the footwell.
If the carpet is wet, the drain is probably blocked & needs to be modified (requires removing the dash, $1000 cost). If it is dry but there are signs of water, the drain may have been modified already - see if the dealer can find out. If the selling dealer does't know, the Jag dealer that has been servicing the car might be willing to tell you.
There are other, cheaper ways to deal with a blocked drain (plenty of threads on here about it), but they all require tools, knowledge or DIY confidence that the average joe doesn't possess.
If the carpet is wet, the drain is probably blocked & needs to be modified (requires removing the dash, $1000 cost). If it is dry but there are signs of water, the drain may have been modified already - see if the dealer can find out. If the selling dealer does't know, the Jag dealer that has been servicing the car might be willing to tell you.
There are other, cheaper ways to deal with a blocked drain (plenty of threads on here about it), but they all require tools, knowledge or DIY confidence that the average joe doesn't possess.
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Junior Member
Joined: Jan 2015
Posts: 18
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From: Northern Michigan
Thanks for that thought. I had the same problem with my VW Touareg. I clean out the drain myself twice a year.
In any 4.2 car, check the passenger footwell for signs that the carpet may have been wet (if you can, lift it & check the underside). The aircon drain in the 4.2s tends to block, causing water to build up in the fan assembly & leak into the footwell.
If the carpet is wet, the drain is probably blocked & needs to be modified (requires removing the dash, $1000 cost). If it is dry but there are signs of water, the drain may have been modified already - see if the dealer can find out. If the selling dealer does't know, the Jag dealer that has been servicing the car might be willing to tell you.
There are other, cheaper ways to deal with a blocked drain (plenty of threads on here about it), but they all require tools, knowledge or DIY confidence that the average joe doesn't possess.
If the carpet is wet, the drain is probably blocked & needs to be modified (requires removing the dash, $1000 cost). If it is dry but there are signs of water, the drain may have been modified already - see if the dealer can find out. If the selling dealer does't know, the Jag dealer that has been servicing the car might be willing to tell you.
There are other, cheaper ways to deal with a blocked drain (plenty of threads on here about it), but they all require tools, knowledge or DIY confidence that the average joe doesn't possess.
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Joined: May 2013
Posts: 3,425
Likes: 1,136
From: London, UK
Problem is, in the XK, it's buried away above the transmission - very hard to access, or even see unless you have a borescope/endoscope handy. The tube is short, and has a flattened 'duckbill' section at the end to keep insects out - theoretically, the pressure in the system when it's running forces the bill open, but in practice it can get gummed shut, especially in dry climates where there isn't a lot of condensed moisture being pushed through it. The later cars have most of one half of the bill missing, so there is less contact area to get stuck.
Favourite maintenance trick is to shut all the vents (even tape up the ones that can't be shut, if it doesn't work first try) and put the blower on full blast to pressurise the system and blow the duckbill open. Success is generally indicated by a puddle under the car.
Favourite maintenance trick is to shut all the vents (even tape up the ones that can't be shut, if it doesn't work first try) and put the blower on full blast to pressurise the system and blow the duckbill open. Success is generally indicated by a puddle under the car.
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Junior Member
Joined: Jan 2015
Posts: 18
Likes: 0
From: Northern Michigan
Problem is, in the XK, it's buried away above the transmission - very hard to access, or even see unless you have a borescope/endoscope handy. The tube is short, and has a flattened 'duckbill' section at the end to keep insects out - theoretically, the pressure in the system when it's running forces the bill open, but in practice it can get gummed shut, especially in dry climates where there isn't a lot of condensed moisture being pushed through it. The later cars have most of one half of the bill missing, so there is less contact area to get stuck.
Favourite maintenance trick is to shut all the vents (even tape up the ones that can't be shut, if it doesn't work first try) and put the blower on full blast to pressurise the system and blow the duckbill open. Success is generally indicated by a puddle under the car.
Favourite maintenance trick is to shut all the vents (even tape up the ones that can't be shut, if it doesn't work first try) and put the blower on full blast to pressurise the system and blow the duckbill open. Success is generally indicated by a puddle under the car.
Junior Member
Joined: Dec 2014
Posts: 11
Likes: 1
From: Calgary Alberta Canada
Northern Michigan you ever think of buying a Canadian Car, the US dollar right now is at 1.20 cdn. We have a great site in Canada called autotrader.ca just put in any city and national search and there are lots of jags. Transport and paper work is not a big deal, just an idea.
Gerry
Gerry
Last edited by Bergy; Jan 16, 2015 at 07:15 PM. Reason: spelling
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Junior Member
Joined: Jan 2015
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From: Northern Michigan
Gerry
Thanks for the idea. I checked it out but didn't see what I was looking for today right now but will keep looking
J
Thanks for the idea. I checked it out but didn't see what I was looking for today right now but will keep looking
J
Northern Michigan you ever think of buying a Canadian Car, the US dollar right now is at 1.20 cdn. We have a great site in Canada called autotrader.ca just put in any city and national search and there are lots of jags. Transport and paper work is not a big deal, just an idea.
Gerry
Gerry
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