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My girlfriend's car (01 Camry) shredded a belt and I replaced it last night.
Every car I've worked on has had an auto tensioner, so I didn't know exactly how tight the belt should be. I thought any car made after like 1985 had an auto tensioner.
I opted for going on the loose side (tight, but not banjo-tight) leaving about an inch to an inch and a half that you can move the belt back and forth.
Charged the battery, put it in this morning and everything seemed ok. Now I'm at work and she said the A/C won't get cold...but
1)The belt would not slip by hand this morning
2) she says there are no squealing/ squeaking sounds
3) the alternator light is not coming on ( the alternator and the AC being the only things on this belt)
Also, I made the mistake of telling her to check YouTube for a rule of thumb on tightness, so now she's convinced the belt isn't tight enough because she can twist it more than 90 degrees (admittedly I should have done this last night but it was dark by the time I finished working on it in the parking lot.)
Is it possible that the belt is slipping enough so that the AC isn't cooling at all, but none of the other symptoms are present?