Engine Size: 5.3L
Refrigerant Type: 134A
Ambient Temp: 90
Country of Origin: United States
I have a 2003 Tahoe with a 5.3 liter engine. I can only get warm air out of the AC system. I'm not a professional mechanic, but I'm a pretty good back yard mechanic. I'm a engineer by trade.
The compressor does not appear to activate, I say appear because it is hard to determine if the compressor is engage because of its location on a 5.3L engine.
I did recharge the system with a 12oz can of 134a - there is pressure in the system.
I have the Climate Control System with digital readout, I can't seem to get the * (snowflake symbol) to light without a slash through it. The owners manual states that a * with a slash through means that the AC has been manually shut off. When I put it in auto and set the temperature to 60 the air air is still very warm.
Any help is appreciated.
2003 Chevrolet Tahoe
Edited: Thu June 09, 2011 at 8:15 PM by Richiela
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Please provide us with both high side (discharge) and low side (suction) pressure readings, and the ambient temperature they were taken at.
Pressure readings should be taken as follows:
Engine running at 1,500 RPM
Temperature selector on MAX cold and RECIRCULATE
Blower on HIGH
Door and windows OPEN
Otherwise the best we can do is WAG...
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