rbarton
NAXJA Forum User
- Location
- Acworth, GA
My daughter just purchased her first vehicle, a 2000 XJ. The A/C will blow cold then just start blowing warm air after a time, especially if cutting back on the blower a bit. If we turn off the A/C (go to vent, etc.) after a few minutes, it will start blowing cold again once moved back to the A/C side. I checked the freon/pressure and it is perfect, dead on. I added a little, just to see if it made any difference. It didn't. One thing that is different on her 2000 as opposed to my 1996 is that when I turn on the A/C in mine, the electric fan starts immediately. Her 2000 can run for up to 10 minutes with the A/C on before the fan will kick in, but then it seems to cycle on an off normally. Is this a change between the years (computer, sensors, etc.) or should it come on immediately as well once the A/C is engaged? I think only someone with a 2000 or newer might be able to answer that one accurately. Past experience says expansion valve could be acting up, but so could the low pressure switch. I am trying to catch it when it does it so I can see what the clutch and fan are both doing at that time. Any ideas? The kid has saved her own money for an XJ since she was about 10 years old because she loved the two I have owned and she wants to work on it and pay for this stuff herself (what a rare concept for a teenager, but we'll have to sneak in and help her out a bit on the insurance) so any insight you can offer will be greatly appreciated. Thanks!
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