Different PUMA heat issue

[firsttimedefender]

Hi all

Had a good look through the threads but couldn't find anything on this specific issue.
I like to switch the air-circulating (or recirculating) controller to draw fresh air from the outside; sometimes with the fan off but mostly with the fan set to '1' or '2'. Even on really cold winters day in Melbourne the air drawn in gets very hot - and in summer it is heated to the point of unbearable. In fact, to keep the footwells from superheating I switch back to 'closed' setting to stop the intake of warm air.
From what I can see the air is drawn in through the top of the engine sidewall and through ducting in the engine bay where it warms up. A friend said to look into the heat/thermostat controller - although set on cold (blue) perhaps there is still some hot coolant circulating/bleeding through; however the dealer reckons the switch works correctly. Also tried installing 'snow covers' over vents to see if can force air through quicker (like a snorkel I guess), perhaps not allowing it to heat up as much (they look great but had no real effect).
Been meaning to look into this for a while, but wanted to know if its fairly standard for other PUMA owners? Is the air always warm due to design/layout of intake pipe? Any fix suggestions (besides cutting out dashboard vents!!lol)? I'd love to get some cool air flow without using the aircon.

[dcale]

Hi, mine was similar until I checked under the bonnet and noticed that the foam seal between the box and the duct had fallen out so the hot air from the engine was being sucked in. Once I fix it, it was all good, no more hot air.

[Redwing]

Have not had this problem however every now and then the recycle/fresh air selector becomes jammed. Another problem I've had is that the passenger side receives much hotter air than the driver side with the heater on.

Had both investigated under warranty and apparently there was no fault. Would love to know how to fix both!

[tuffrangie]

Have not had this problem however every now and then the recycle/fresh air selector becomes jammed. Another problem I've had is that the passenger side receives much hotter air than the driver side with the heater on.

Had both investigated under warranty and apparently there was no fault. Would love to know how to fix both!

My recycle fressh air was jammed as it is a poor design, a cable has to be pushed to switch from open to recycle i think. Cables don't like being pushed and they bend and jam. I temporarily fixed with a cable tie, then had them replace under warranty. The problem is just behind the knob.

I had a fresh air 'snorkel' on top of the left hand guard to let the cooler fresh air in instead of taking it out of the engine bay. It seemed to make a bit of a difference.

Rob

[austastar]

Hi,
check the heater tap, rear of the engine up on the fire wall, passenger's side.
You can easily identify it by having some one move the control in the cab.
Is the cable moving the tap to the fully off position?

cheers

[JayBoRover]

Hi, mine was similar until I checked under the bonnet and noticed that the foam seal between the box and the duct had fallen out so the hot air from the engine was being sucked in. Once I fix it, it was all good, no more hot air.
The foam seal is still in on mine but I can easily fit a handful of fingers between the foam of the fan box and the plastic of the intake duct. This gap lets lots of engine heat into the duct and is the cause for me of hot air coming in with the fresh. It's difficult to reach as the gap is underneath. I have tried to remove the duct so I can see if there's something to be done about it, but there's a fair bit of work involved in getting the duct out so I gave up. One day ...

[firsttimedefender]

Thanks for all the feedback. I had already checked heater tap with a friend who has a td5 but I'll check again and look at the duct/foam seal more closely

[bemm52]

The foam seal is still in on mine but I can easily fit a handful of fingers between the foam of the fan box and the plastic of the intake duct. This gap lets lots of engine heat into the duct and is the cause for me of hot air coming in with the fresh. It's difficult to reach as the gap is underneath. I have tried to remove the duct so I can see if there's something to be done about it, but there's a fair bit of work involved in getting the duct out so I gave up. One day ...

I have the same issue with my MY13 90 I agree it is hard to get at to fix, I wondered if from the inside via the air intake is the way to go

Cheers Paul

[Loubrey]

I've got the KBX Hi-Force intakes fitted and IMO it makes a massive difference. Even in Pilbara heat (40+ Deg) the fresh air flow has been significantly increased and the right hand one while mostly cosmetic does aid with some heat shift under the bonnet.

KBX5101 | KBX Defender Hi-Force Air Intakes - Satin Black - Pair (http://www.paddockspares.com/kbx5101-kbx-defender-hi-force-air-intakes-satin-black-pair.html)

Unless there is a mechanical problem with the heater actually remaining "on" all the time. Back in the day had a 2003 Discovery that only varied between hot and very, very :censored: hot! That turned out to be a faulty climate control sensor (obviously not the problem here!).

Good luck with finding the problem!

Cheers,

Lou

[bemm52]

I have the same issue with my MY13 90 I agree it is hard to get at to fix, I wondered if from the inside via the air intake is the way to go

Cheers Paul

Bit of a bump here but are there MY13 owners out there with this problem..............My 90 is due for first service next week, I'm guessing this is a warranty issue?

Is there an a easy solution .........

Cheers Paul

[bemm52]

The foam seal is still in on mine but I can easily fit a handful of fingers between the foam of the fan box and the plastic of the intake duct. This gap lets lots of engine heat into the duct and is the cause for me of hot air coming in with the fresh. It's difficult to reach as the gap is underneath. I have tried to remove the duct so I can see if there's something to be done about it, but there's a fair bit of work involved in getting the duct out so I gave up. One day ...

Bump Opps this was the quote I wanted .........

Cheers Paul

[bemm52]

The foam seal is still in on mine but I can easily fit a handful of fingers between the foam of the fan box and the plastic of the intake duct. This gap lets lots of engine heat into the duct and is the cause for me of hot air coming in with the fresh. It's difficult to reach as the gap is underneath. I have tried to remove the duct so I can see if there's something to be done about it, but there's a fair bit of work involved in getting the duct out so I gave up. One day ...


Landrovers solution to the problem..........seems to work

66286

Time will tell

Cheers Paul

[ericvv]

Have not had this problem however every now and then the recycle/fresh air selector becomes jammed. Another problem I've had is that the passenger side receives much hotter air than the driver side with the heater on.

Had both investigated under warranty and apparently there was no fault. Would love to know how to fix both!

Here is copy of the Land Rover fix for the difference in air temp between passenger/driver sides with the heat on. This is a common problem, my 2009 Puma has it too. First my dealer said that "they all are like that, sir". Then after I found that there is a prescribed fix from Land Rover for people who do complain, a copy of which I got via defender2.net, when I showed it to the dealer they were ready to do this fix at their cost. But mind, it is a complete dash out job, and in the end I decided that it was not worth having a perfectly quiet dash taken out and put together again, with who knows what as consequences. So I left it as is, but in any case here is copy of the fix if you want to try your dealer.