XJS ( X27 ) 1975 - 1996 3.6 4.0 5.3 6.0

95 xjs air conditioning pressures

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Old Apr 18, 2011 | 05:56 PM
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expedio2005's Avatar
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Default 95 xjs air conditioning pressures

Does anyone know the correct operational psi ranges for both the low and high side ports? I've been searching the internet for hours now with no luck.
 
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Old Apr 20, 2011 | 08:41 AM
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Originally Posted by expedio2005
Does anyone know the correct operational psi ranges for both the low and high side ports? I've been searching the internet for hours now with no luck.
Idling with the A/C fans on low speed the pressures will be roughly:
28-30 psi, low side
150-170 psi, high side

Kick the fans to high speed:
35-40 psi, low side
190-210 psi, high side

That would be at ambient temps around 75 deg. F, higher temps would mean somewhat higher pressures, and cooler temps a little lower.

Hope that helps.
 
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Old Apr 21, 2011 | 07:01 AM
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expedio2005's Avatar
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Originally Posted by xjrguy
Idling with the A/C fans on low speed the pressures will be roughly:
28-30 psi, low side
150-170 psi, high side

Kick the fans to high speed:
35-40 psi, low side
190-210 psi, high side

That would be at ambient temps around 75 deg. F, higher temps would mean somewhat higher pressures, and cooler temps a little lower.

Hope that helps.
Thanks Steve, it's a huge help. I just couldn't find it anywhere, even on my service manual cd.
 
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