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Clutch not cycleing

Acrux on Sun August 03, 2008 1:27 PM User is offline

Year: 90
Make: Ford
Model: Thunderbird
Engine Size: 302
Refrigerant Type: R-134a
Ambient Temp: 87
Pressure Low: 45
Pressure High: 240

Had a new compressor and accumulator installed by a a/c shop system was evaced, flushed pressure check recharged and was blowing 50 degrees with the ambient air temp at 90 with my low side being 45 and high side at 240 Now it doesn't blow that cold and I found that the clutch isn't cycleing I do not know if is is in a continous run or not. Took it out for a drive and the temperture at the vent never got below 60 degrees


Even with a wire between the cclutch cycleing switch it still doesn't cycle
Did I get a bad compressor?

Edited: Sun August 03, 2008 at 3:53 PM by Acrux

Chick on Sun August 03, 2008 9:02 PM User is offlineView users profile

It will only cycle when the low side drops to around 24 psi, and this is normal, the warmer it is, the less cycling, unplug your blower motor and watch the low side gauges, it should cycle off around 21 to 24psi.. The heat keeps the low side above cycling pressures.. I would look for a leak if not cooling or heater core heat blending in..But since your compressor has a high and low, it's working.. (45psi x 240psi) You could be slightly overcharged (did you add anything?) or the fan's aren't working correctly..

Jumping the cycling switch will NOT let it cycle..

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Chick
Email: Chick

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Freedoms just another word for nothing left to lose

Acrux on Mon August 04, 2008 2:25 PM User is offline

I added nothing. I will look at the fans and see if things improve

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