warm air

[gungazza]

when ive got the temp control ,on cold. it comes out warm ,put it on hot and is hot but back to cool its still warmish ??

[mwb235]

Sounds like you've run out of refrigerant (gas) just like mine did a few days ago. If it's gas only it'll be $100-$140 (get them to replace the seals before they regas it - in case the seals caused a leak). Hopefully it's not a compressor - i've read one of those costs $700-$900 to replace! I hope this is wrong. I can't get mine booked in until mid-Jan 09 because of the holiday break, and i have a ten-hour driving trip ahead of me next week.

[mwb235]

Also gungazza check this post:

VT A/C problem. Hissing and not cooling.

[accentstencil]

when ive got the temp control ,on cold. it comes out warm ,put it on hot and is hot but back to cool its still warmish ??

Is that with the A/C on or off? If it it is with the A/C off then that is to be expected at this time of the year, it will only be cool if the outside temp is pretty cold. But maybe the heater tap is not turning completely off.
If it is with the A/C on then that is a problem, usually a lack of refrigerant.

[gungazza]

does that heater valve supose to move when the control is turned this one seems to not move air con off

[commsirac]

does that heater valve supose to move when the control is turned this one seems to not move air con off

The heater valve requires vacuum to be in the closed position. So when the motor is going without the heater on the valve should be shut whether the aircon is being used or not.
It should only open when the heater is turned on or when the motor is stopped, it may take a while for the vacuum to disappear when it is turned off or it may even hold vacuum.
You can check for correct activation of this valve to determine if it is a vac problem or not.
If the valve appears to being actuated properly, the problem could be within the valve/tap itself. Unfortunately these are a high failure rate item and even a small flow will heat up the heater core very well and could be responsible for your hot air.
Just a simple probe with your hands on the heater hose on either side of the tap should verify whether any water is getting through. there will be some conduction of heat right down the hose, even though water isnt flowing.

Other points to consider is that when the vehicle is left in the blazing sun, all of the duct work becomes hot, so even though the air outside may be cool, it can still end up quite warm once it gets through everything to your dashboard. Also after the car has been parked with a hot motor, heat soak from the motor heats all these parts to high temps as well. Generally in summer, I find it can take up to 15mins of driving before the duct temp drops to within a degree or so of the outside temperature....which means putting the ac on!