2004 rx330 blowing coolair instead of heat - Air Conditioning and Heat for Lexus RX350

Question edited for clarity.
Question moved to model category.

It is likely to be the fuel sender unit that supplies data to the gauge. It is located inside the fuel tank.

https://www.google.com/search?q=2004+lexus+rx330+fuel+sender+unit

..

Does it blow cold air instead, or no air at all?

In your owners manual

We don't have info here

Have to use the internet for a manual
if you don't have one

Sounds like you may need to change the Cycling switch. It maybe misreading the pressure in your a/c

check your water pump if it go's out it will cause you car to over heat and blow out cool air. if not water pump check your thermostat ez way is your hose on the left side (driver side) hot or cold if hot thermostat probably fine. if cold replace it. and it never hearts to do an coolant flush. last but not lease those motors are notorious for bad intake gaskets.
need more help just let me know
stockam auto

If you need further help, reach me via phone at https://www.6ya.com/expert/dennis_f849d3d6a68c6430

2004 mercury mountaineer.heat problem
When turning ac knob to heat clicking sound like door opening and closing repeatedly sounds and air blows cold instead of hot.

Depends where the guy put it the last time you changed the tires...usually in the back compartments

The lexus 2004 RX330 owners maual doesn't have the maintenance schedule in it. No charts, no recommended replacement of parts, fluids. Where do I get the RX330 maintenance schedule? ...and not just at what mileage service is due!

If you email me at [email protected] i can attach instructions. Please remind me of your make, model and concern. thank you

the intake air temp is also the air flow meter located in the tube after the air filter.