Question about 1991 Mitsubishi 3000GT

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Aircon not wrking & Warning light on dash

Have Two problems.
1. My Aircon only runs for about 5-6 seconds then the compressor kicks out and the frosty symbol on the controls get replaced by a flashing red dot.

2. I have a warning light on the right side of my speedometer, third from the top. It stays on permenantly. is it seriuos? I have cheched all Liquid levles and all are within specified range.

Please help.
Thanks
chrissmith@mailbox.co.za

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I am thinking that South Africa has a bit different configuration of lights than we do here in the states, over here, the third from the top is the SRS light, but I think you probably mean the radiator light.

The sensor on the over flow bottle goes bad, and the light comes on. Is the bottle feeding back into the radiator, if not, this could be a problem, how are the actual fluid levels in the system itself, not in the overflow, if you have a small leak in the radiator, it will keep the car from creating vacuum to draw fluid in from the bottle, so your bottle will always be full, while your engine starves for water.

How are your temps running on the engine? The AC has a safety switch will shut down the compressor if the temps are too high... if you are running the original stock radiator, I would bet that it needs replacement, it could well explain BOTH your problems. Check your radiator and fans (if your fans don't come on when you turn on your AC, it could also kick it off) With the car sitting there, started but still cold, turn on the AC, check to see if the fan on the timing belt side of the engine turns on - it should regardless of temperature.

Again, while it could be a fan, my bet is on the radiator.

Cheers,
Scott
iceman_ii on www.3si.org


Posted on Feb 21, 2009

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