Year: 2004
Make: Chevrolet
Model: Aveo
Engine Size: 1.6
Refrigerant Type: R134a
Ambient Temp: 70
Pressure Low: 85
Pressure High: 85
Country of Origin: United States
Hello all,
I've checked the fuses and relays. Cooling fans turn on. Pressures high and low are 85 on both.
What should I check from here.
Any suggestions? Thanks in advance.
Tom
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T. Hauser
Compressor should turn on with 85 psi static pressure at 70 F. That is a normal reading. If the fans come on that usually means the controls are OK with turning the compressor on. See if the clutch coil is getting power when it should be on. If it is, either the clutch gap is too wide or the coil is open.
On my 91 & 96 Chevy , the computer commanded the compressor clutch relay to turn on . Do not know if his car is simular , but I suspect it is ?
I looked up the wiring diagram on the 96 and checked at the relay . It was OK .
With the car off , I jumpered around the relay and sure enough , click , the clutch pulled in properly .
]
Vacuumed the system down , Held vacuum for about an hour & then added oil / dye , then freon . When the second can of freon , started to enter the system the pressure switch started to bring the clutch on & the compressor started cycling .
Then I started looking for leaks .
God bless
Wyr
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T. Hauser
Thanks for the reply, I'll check those out and let you know how I make out.
Tom
-------------------------
T. Hauser
Well I finally got to it yesterday. Found that the wire from the relay to the compressor had broke. Spliced and soldered and now she works like a charm. Thanks mk378.
Tom
-------------------------
T. Hauser
There is never any way to tell , before you start trouble shooting , if it will be a simple ( not always simple to find ) problem or a very serious / complicated / involved problem .
Always makes be happy when I can successfully fix a problem . And being cheap , it puts an extra wide grin on my face when the fix is simple / easy / quick / cheap . :-)
God bless
Wyr
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