Air Conditioning blowing hot and cold
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Jose97 (04-10-2013)
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My 05 4.2 with nav has had the "HOT" air problem. I replaced the DCCV, still hot air.
Removed the RCCM & inspected it, no blown traces anywhere/
I noticed that with the AC on, the compressor is NOT on. The refrigerant levels are good but no compressor activation.
Should I be looking for faulty evap sensors?
Does a failed sensor cause the compressor to cut off?
Thanks
Removed the RCCM & inspected it, no blown traces anywhere/
I noticed that with the AC on, the compressor is NOT on. The refrigerant levels are good but no compressor activation.
Should I be looking for faulty evap sensors?
Does a failed sensor cause the compressor to cut off?
Thanks
The following 2 users liked this post by bzeilstr:
Dorian Poterasu (05-02-2013),
Jose97 (04-10-2013)
#64
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Thanks for the advice.......hopefully the need for the dealers "equipment" won't come in to play as in my experience they just use the equipment to extract as many £££'s from you that they can, I don't have a lot of faith in them after they recently diagnosed my engine misfire problem as needing a new Throttle Control unit and Lamda sensor (£1800 quote for the repair) when all I eventually fitted was a new Lamda Sensor and an ignition coil. cost me a new gizmo to read the fault codes from the car but I still saved a fortune :-) :-)
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Thanks
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The post said the DCCV fuse was located under hood / passenger side. Where exactly?
My real question is that I've gotten 2 different answers from 2 different mechanics on my A/C. One said he'd have to take the dashboard off to repair and the other said what we needed to look at was on the passenger side upper floor-board. (Much less labor intensive). My problem: Blower works fine. But it's only blowing hot air. Where I live, we NEVER need the heater in a car. Ever! So mechanic number 2 said we could somehow make an adjustment and put my A/C on permanent cold. I'm okay with that... I live in a beautiful, yet small town, and am 1100 miles away from the nearest Jag mechanic. And I myself am not mechanically inclined AT ALL. Thanks for your patience and answers..
My real question is that I've gotten 2 different answers from 2 different mechanics on my A/C. One said he'd have to take the dashboard off to repair and the other said what we needed to look at was on the passenger side upper floor-board. (Much less labor intensive). My problem: Blower works fine. But it's only blowing hot air. Where I live, we NEVER need the heater in a car. Ever! So mechanic number 2 said we could somehow make an adjustment and put my A/C on permanent cold. I'm okay with that... I live in a beautiful, yet small town, and am 1100 miles away from the nearest Jag mechanic. And I myself am not mechanically inclined AT ALL. Thanks for your patience and answers..
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Just blank off the hoes to the heater if you never want to use it and disconnect the electrical plug to the valve so the CCM won't be damaged in the future.
#76
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Mine was switching cold to hot also. Today I went on a two hour drive and set the temp to LO and used the fan to adjust the air flow. It was fine the whole trip. I had the auto off and the recirc on. I had to turn it off once because it got to cold but only for a few min. It never went hot.
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