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#41
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If you told them to fix the AC system and it still wasn't working when you took back ownership of the truck, you should have complained right then and there. If you asked them to fill the system with refrigerant, that is what they did. I tell my friends to tell the mechanic what the problem they are having with the car, but never tell them to tell the mechanic how to fix the car.
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2006 Infiniti G35 2001 BMW 3.0I E53 X5 Build date 08/2000 SOLD Lotus Europa 1970 Destroyed by fire Lotus Europa 1970 S2 Renault Powered Lotus Type 52 1970 Twincam Webers Powered PORSCHE 911 Targa 1982 The Garage Queen Audi Avant donated to Kars for Kids BMW 525IT Sold Audi 4000CS Quattro Sold Jensen Healey Lotus Powered Sold Opel 1900 Sold Triumph Spitfire 1971 Sold Triumph Spitfire 1968 Sold Plymouth "Cuda" 340 Six pack SOLD |
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#42
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Clearly spelled out in my dissertation on page 3, but I understand if most people chose not to read that. Hopefully a few will learn from it. As explained there, with the compressor off, there is a direct correlation between temperature and pressure if there is a saturated vapor in the system (i.e., both liquid and vapor coexisting, as they should). And that pressure-temperature relationship is shown in that inner red ring on the pressure gauges. Since the indicated pressure is well below that which would be predicted by that relationship, I suggested (qualified by the fact that there seemed to be some doubt about measurements) that could be explained by a significant lack of refrigerant, meaning there is no liquid, only vapor. ... which comes to the same conclusion as AndrewWynn: "50 seems waaay too low you are prob just low on gas."
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2001 X5 3.0i, 203k miles, AT, owned since 2014 |
#43
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2006 Infiniti G35 2001 BMW 3.0I E53 X5 Build date 08/2000 SOLD Lotus Europa 1970 Destroyed by fire Lotus Europa 1970 S2 Renault Powered Lotus Type 52 1970 Twincam Webers Powered PORSCHE 911 Targa 1982 The Garage Queen Audi Avant donated to Kars for Kids BMW 525IT Sold Audi 4000CS Quattro Sold Jensen Healey Lotus Powered Sold Opel 1900 Sold Triumph Spitfire 1971 Sold Triumph Spitfire 1968 Sold Plymouth "Cuda" 340 Six pack SOLD |
#44
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2006 Infiniti G35 2001 BMW 3.0I E53 X5 Build date 08/2000 SOLD Lotus Europa 1970 Destroyed by fire Lotus Europa 1970 S2 Renault Powered Lotus Type 52 1970 Twincam Webers Powered PORSCHE 911 Targa 1982 The Garage Queen Audi Avant donated to Kars for Kids BMW 525IT Sold Audi 4000CS Quattro Sold Jensen Healey Lotus Powered Sold Opel 1900 Sold Triumph Spitfire 1971 Sold Triumph Spitfire 1968 Sold Plymouth "Cuda" 340 Six pack SOLD |
#45
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I think he meant either the condensor fan or the compressor clutch but clarification is in order
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2011 E70 • N55 (me) 2012 E70 • N63 (wife) |
#46
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Yes sorry typo, compressor clutch in engaged
I think my best best is to take it to a shop to get pressure reading from both sides. I would guess that the fan isn't kicking on because of a pressure problem.
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2003 X5 3.0 manual 2001 E39 M5 |
#47
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2006 Infiniti G35 2001 BMW 3.0I E53 X5 Build date 08/2000 SOLD Lotus Europa 1970 Destroyed by fire Lotus Europa 1970 S2 Renault Powered Lotus Type 52 1970 Twincam Webers Powered PORSCHE 911 Targa 1982 The Garage Queen Audi Avant donated to Kars for Kids BMW 525IT Sold Audi 4000CS Quattro Sold Jensen Healey Lotus Powered Sold Opel 1900 Sold Triumph Spitfire 1971 Sold Triumph Spitfire 1968 Sold Plymouth "Cuda" 340 Six pack SOLD |
#48
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X5 E53 Air Conditioning - all systems go but no cold air
+1
You need high and low side values. I typically get about 45/250 at 80 ambient. If it is cold for a while and warms after ten minutes, that usually means low freon and it's "working too well" (and icing up the evaporator). My scanner will show me the evaporator temp. That can be very helpful
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2011 E70 • N55 (me) 2012 E70 • N63 (wife) |
#49
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Havent read the whole thread but its probably the compressor, variable displacement swashplate sticking in the flat position so no compression. Can be intermitent or constant.
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04 X5 3.0i auto 03 X5 4.6is |
#50
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You can't solve without knowing that information. You can rent/buy ac manifold set even if just for diagnostic readings before taking in. Clutch engaging (click) doesn't mean it's grabbing; one method of failure is that the clutch isn't grabbing. In any event the first step to diagnose ac is high and low readings while compressor is running. The low side pressure switch is not a simple on/off type unfortunately so if that fails it needs to be replaced. My AC currently only works when I use my scanner to engage the AC compressor due to aux fan failure. Works fine once jump started and new fan is ordered. A scanner that can run the aux fan should also be able to show the voltage on the pressure sensor and also manually engage the compressor (but I wouldn't do that until you have high/low readings)
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2011 E70 • N55 (me) 2012 E70 • N63 (wife) |
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a/c, air, air conditioning, e53, expansion valve |
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