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bergxu



Member Since: 18 Jan 2012
Location: Cincinnati
Posts: 61

United States 2005 Range Rover HSE 4.4 V8 Zambezi Silver
‘08 L322 aircon cold then not then cold

Greetings from the States gents,

Hoping maybe someone can shed some light on my HVAC problem I’ve got with my Rangie. If it matters, it’s an ‘08 HSE with the Jag petrol N/A 4.4 lump.

Backstory is I got it through a friend who works for an LR main agent. Very nice shape, local rig it’s whole life and serviced at the dealer always.

I’ve owned three or four L322s over the years but all were the BMW 4.4 petrol engine which I never really cared for. The Jag engine is of course much more suited to the FFRR so I’m very pleased he nabbed this one for me when it came in on trade.

Anyhow, the aircon is wonky. Sometimes it’ll blow ice cold, and I mean frigid, but then the cooling starts to get weaker and may or may not eventually return to full cold. No rhyme or reason as to when it happens and environmental conditions don’t necessarily seem to have any effect (eg first drive in the morning or after several drives throughout the day). My first thought was to check refrigerant level but given it gets so cold when it’s working, I don’t know that I’ve got an issue with low Freon. Next I made sure to pay attention to the outside temp reading as I know the HVAC takes a read from that and it appears to be accurate. So my last thoughts are either the in-car temp sensor in the HVAC panel or else the evaporator temp switch.

Not sure if/how in car temp sensor can be checked other than seeing if the little aspirator fan is drawing air across the sensor (I assume this is the arrangement). I presume if I get hooked to a scan tool I can look at some feedback from various sensors in the HVAC...

Thanks all for any ideas. It’s hot in Ohio and I’d love to have the aircon consistent! Don’t want the RR to roast me like my TVR does in the summer Twisted Evil Cheers,

Aaron

Post #597240 12th Jun 2021 12:07pm
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Haylands



Member Since: 04 Mar 2014
Location: East Yorkshire
Posts: 8193

England 2014 Range Rover Autobiography SDV8 Loire Blue

Could be overfilled with gas, it's getting so cold it freezes the pipework which stops the circulation and it stops working, warms up, defrosts and works again etc etc....

Get it regassed with the correct weight of gas, got to be the cheapest thing to start with as well.. Thumbs Up Pete

__________________________________________________
2014 L405 Autobiography SDV8 4.4 Loire Blue Ebony interior
2011 L322 Vogue SE 4.4 TDV8 Baltic Blue. Parchment over Navy Interior. Sold
2012 L322 Autobiography 5.0 Supercharged Ipanema Sand, Jet Interior. Sold
2002 L322 Vogue 4.4 V8 Epson Green, Ivory over Aspen Interior (Fatty Offroader) Sold
-Click for Project Fatty off roader-

Post #597244 12th Jun 2021 12:18pm
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