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Old 07-19-2005, 09:30 AM
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Moneypit SEL Moneypit SEL is offline
Now what?
 
Join Date: Jun 2005
Location: SE PA
Posts: 525
Quote:
Originally Posted by Saint
Back to my point...when the compressor first egages...does it take your econo gauge to about half way before settling back to about 1/4? I dont rermember mine doing that. I remember it going from zero to 1/4, and thats it. Now, when it engages...it goes right to the half way point..then shuts down.

I was considering manually engaging the clutch...but it may make things worse...i dont know...
The Economy gauge shows manifold vacuum. High vacuum = light engine load. Low vacuum = heavy engine load. It sounds like your compressor is putting a bigger load on the engine than it used to. Sorry to say, but it is looking like the compressor has opted for early retirement.

I'd suggest that (with the engine off, of course) you try turning the compressor by hand. If all is normal, you should be able to feel some resistance, but should be able to turn smoothly. If it feels rough, or you are unable to turn it, then you're probably looking at a new compressor. If you're not sure how it feels, then find a vehicle with working A/C, turn that compressor by hand, and compare to yours.

If, however, it turns smoothly without excessive effort, then we start looking for other causes.

Good Luck
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1989 300 SEL that mostly works, but needs TLC
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