07 Timing belt replacement problems...
My Elantra was at around 120k miles and due for its timing belt replacement (I elected to replace the belts and water pump etc/using a kit) When I picked it up the car from the mechanic it was making a squeaking sound that was very noticeable especially when accelerating from 0-20, but is audible at all speeds. I immediately notified the mechanic and he said there was likely some air in one of the lines and that it should clear in the next few weeks but if not to bring it back.
Fast forward one week and the squeak hasn't gone away, but today was a hot day and I decided to use the AC and was surprised that I only got hot air out of the car even after the AC ran for 10-15 minutes. I opened the hood and didn't see any movement in the serpentine belt when the AC was on (however I'm not knowledgeable enough to know if this runs intermittently)
Anyway, to me this seems like a straightforward error by the mechanic, but I guess I want to make sure if my logic is reasonable or if the mechanic might come back saying something else is wrong. Up until the timing belt replacement I have had no problems with the AC but I have never had it recharged.