airco A/C light flashes

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Old 04 Apr 2006, 05:04 pm   #1 (permalink)
Ed Dokma
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Default airco A/C light flashes

The flashing green light in the A/C button indicates trouble. However a
refill and very expensive presurising of the system did not solve the
problem. Who knows a solution. The Camry is a 2.2 GL 1998.


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Old 04 Apr 2006, 05:53 pm   #2 (permalink)
onehappymadman@yahoo.com
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Default Re: airco A/C light flashes


Ed Dokma wrote:
> The flashing green light in the A/C button indicates trouble. However a
> refill and very expensive presurising of the system did not solve the
> problem. Who knows a solution. The Camry is a 2.2 GL 1998.


(just guessing here) a bad compressor, or a leak in the system?

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Old 05 Apr 2006, 08:47 am   #3 (permalink)
Daniel
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Default Re: airco A/C light flashes

Not sure I understand all this, but thought it might come in handy some
day, so copied and saved it at some time in the past. These are not my
words, but hope they may help you.
=================================
=================================

You forget to mantion one more item, the A/C clutch is slipping.
The A/C AMP senses this and disengages the A/C clutch and flashes
the light. This is usually caused by the wearing down of the
clutch surfaces and the gap becomes too wide. Fortunately, the
gap can be adjusted by removing shims from the shaft of the
compressor where the clutch plate is attached to. Measure the
gap using a dial indicator, feeler gauge would not work with
this compressor because the clutch plate is recessed under the
pulley. Using a jumper wire to connect the magnetic coil to the
battery to engage the clutch if you work alone. The normal range of
the gap is 20mils +/-5mils.

You can remove the compressor without disconnecting the hoses,
but the radiator hose above it has to be disconnected so that
the compressor can be lifted up to gain access to the clutch
plate screw. Drain the radiator fluid first. Use wires to hold the
compressor with the clutch plate facing upwards. Use a locking plier
or C-clamp to hold the clutch plate to the pulley to prevent it
from turning when you unscrew the center bolt. Becareful when lifting
the clutch plate out not to loose any of the shims.

If you measured the gap at 40mils, just take off the number of shims
close to 20mils and reinstall them. Now you gap should be 20mils.
Verify this with the dial indicator before you put every thing back.

If you find deep grooves on the clutch plate surfaces, it is better
to replace clutch completely. The clutch assembly should not cost
more than $70 at you local Pep-Boy store.

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