A/C has me stumped
the ac is pulling me through a loop right now
The jeep in question is my 2001 4.0 auto the e-fan is new and works when jumped but wont turn on otherwise, the compressor works when i jump the low pressure switch (but the e-fan doesn't turn on), the charge is good, and the fuses and relays have been switched out. am i missing something? lol :confused1: :dunno: |
'00-'01 efans are triggered by a/c pressure.....r u leaving the a/c on long enough to build pressure?
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Ive tested it on 3 separate occasions when driving it for 30 minutes till an hour at a time,
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Originally Posted by djb383
(Post 2476684)
'00-'01 efans are triggered by a/c pressure.....r u leaving the a/c on long enough to build pressure?
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Originally Posted by sycoglitch
(Post 2476973)
Is the AC going on by itself. Or only when you jump it. What happens when you turn switch to AC or defrost. Does fan go on at 218*
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The compressor isn't coming on unless i jump it, when i turn the ac or defrost on it just blows lukewarm air through the vents. I havent had the jeep get above 210 even without the e-fan.
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Originally Posted by djb383
(Post 2476991)
R u asking me or the OP? |
Originally Posted by taythegibs
(Post 2477012)
The compressor isn't coming on unless i jump it, when i turn the ac or defrost on it just blows lukewarm air through the vents. I havent had the jeep get above 210 even without the e-fan.
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According to the gauge i borrowed its sitting at 45psi, but that is without the condenser running.
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I believe '00-'01 efans "turn on" based upon a/c "high side" pressure readings. So, if there's not enough a/c "high side" pressure, the efan will not turn on, unless coolant temp reaches 218F.
'99 down efans "turn on" when the a/c clutch engages regardless of a/c pressure. |
Originally Posted by taythegibs
(Post 2477032)
According to the gauge i borrowed its sitting at 45psi, but that is without the condenser running.
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Would refilling it via the low side port work and get the compressor to cycle or would i have to jump it off to get the pressure equalized before it'd run?
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No reason to charge the A/C system until you locate & repair the leak(s).
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Is your gauge one of the single ended types that comes with the recharge kits?
How long has it been since the A/C functioned properly? |
It is, and the ac worked a bit last fall, i dont remember if it had worked before a year or so ago.
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