why does the automatic air conditioning only work ocassionally


Asked by Dec 23, 2013 at 09:05 PM about the 1992 Cadillac Eldorado Coupe FWD

Question type: Maintenance & Repair

my air conditioning never comes on when i want and ive pushed all buttons but it only
funktions sometimes and may work for a few secs and then stop and not work afterwards
and my windshield fogs up and cant unfreeze the windshield at winter cuz air conditioning
wont work

6 Answers

You have to go in for air conditioning service...as this one has a filter/dryer that removes water from the freon stream....also a proportioning valve...these things need to get looked at and the "sight glass" should not have bubbles in it...get some a/c service...have the charge looked at undercharge causes icing....do you hear the compressor engage when you select it?~

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Best Answer Mark helpful

Could be as simple as a bad blower motor. Or a bad blower motor relay. Or it could be a bad control head. I'd suggest taking it to a service facility that has an older mechanic that is familiar with these systems. Your local corner garage won't know how to fix this. HTH. -Jim

2 of 2 people found this helpful.

...they might, Jim...not all of us are simple parts-replacers, but actually know what the data can tell you~

2 of 2 people found this helpful.

thanks for answering so quickly,yes i hear it engage (a small clicking sound) when i put it on but it wont start blowing.

1 of 1 people found this helpful.

so the compressor turns....that's a GOOD thing...btw...happy holidays to you and your kin~

Hi Jesse ,what solved it ? Mine goes on and blows for 2 min and then turns of . Works agin 2 min after I restart the engine and then turns of again ....there is no difference if ac is of or on....just shuts of 2 min after start no blender door funny sound .....compressor on !! Thanks

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