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Registered
Join Date: Sep 2001
Location: Kerrville, Texas
Posts: 1,021
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AC Thermostat
It appears like the thermostat has finally gone bad. Lucky for me Houston is only in the low 90's. How do I replace it? Pull the old unit out of the dash and simply plug in a new one. BTW freon check out and I have been noticing the vent temps fluctuating from high 50's to high 60's. Switch never did much to change temps anyway.
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1987 911 Guards Red Targa, nearing 200,000 miles, lowered, 7's & 8's, 964 grind cams from John Dougherty, A.P.E. Mass Flow Sensor with chip to match, cat bypass, strut brace, dual out muffler. Will consider newer model in 8 years when I turn 75 and then maybe not. 2012 BMW 528i (wife's) 2007 Toyota FJ (rain and off road days) |
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06-04-2004, 11:54 AM
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"C-Rations"
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Are you referring to the switch next to the fan speed switch in the center console? Do you have a picture?
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John The Stable: 1985 Carrera Cabriolet (RoW) Sold 2002 Chevy Tahoe LT (The Wife's) 1999 Chevy Silverado (Parts Hauler) 1969 Volkswagen Beetle (Purchased From Original Owner) I'm slower than the guy in front of me, but faster than the guy in back of me. |
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06-04-2004, 12:00 PM
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"C-Rations"
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You said you were sure you do not have too much or too little freon? A faulty expansion valve could also cause this to happen. Also, have you checked your receiver/dryer?
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John The Stable: 1985 Carrera Cabriolet (RoW) Sold 2002 Chevy Tahoe LT (The Wife's) 1999 Chevy Silverado (Parts Hauler) 1969 Volkswagen Beetle (Purchased From Original Owner) I'm slower than the guy in front of me, but faster than the guy in back of me. |
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06-04-2004, 12:03 PM
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Registered
Join Date: Sep 2001
Location: Kerrville, Texas
Posts: 1,021
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The shop checked the freon and it looked to be at the correct pressures. How do you check the expasion valve? The shop was thinking that the valve was going bad several months ago when I had the system topped up with freon then. The evaporator and receiver were replaced about 4 years ago in an attempt at getting some cool air. Actually for about a year or so I was getting very cold sub 50 degree air at the vents. Maybe it is the expansion valve.
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1987 911 Guards Red Targa, nearing 200,000 miles, lowered, 7's & 8's, 964 grind cams from John Dougherty, A.P.E. Mass Flow Sensor with chip to match, cat bypass, strut brace, dual out muffler. Will consider newer model in 8 years when I turn 75 and then maybe not. 2012 BMW 528i (wife's) 2007 Toyota FJ (rain and off road days) |
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06-04-2004, 01:00 PM
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"C-Rations"
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Since you have pretty much ruled out everything else, that would be where I would put my money. BTW, it is recommended that the receiver/dryer be replaced anytime the system is opened up and replacing the expansion valve requires a system breach.
Let me know if I can help further. 
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John The Stable: 1985 Carrera Cabriolet (RoW) Sold 2002 Chevy Tahoe LT (The Wife's) 1999 Chevy Silverado (Parts Hauler) 1969 Volkswagen Beetle (Purchased From Original Owner) I'm slower than the guy in front of me, but faster than the guy in back of me. Last edited by JRISER; 06-04-2004 at 02:30 PM.. |
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06-04-2004, 02:26 PM
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Registered
Join Date: Sep 2001
Location: Kerrville, Texas
Posts: 1,021
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Anyway to check the thermostat? Can it be by passed?
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1987 911 Guards Red Targa, nearing 200,000 miles, lowered, 7's & 8's, 964 grind cams from John Dougherty, A.P.E. Mass Flow Sensor with chip to match, cat bypass, strut brace, dual out muffler. Will consider newer model in 8 years when I turn 75 and then maybe not. 2012 BMW 528i (wife's) 2007 Toyota FJ (rain and off road days) |
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06-04-2004, 04:00 PM
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1985 Porsche Carrera Cabriolet (RoW) 3.2L
