Well, as the title says, my engine started making a squeaking sound after it revs up. I first checked after having a hard start. Took 6-8 seconds and it didnt sound like it wanted to turn over. I've had my coils and plugs replaced recently, so not sure why it would be hard to start. Today was the warmest it had been in a while (around 95 degrees). The squeak only happens when the AC is on (at least I only was able to reproduce it with the AC on). Would this be related to belts at all? Or any other ideas? Thanks in advance.

 

Take the AC belt off and see if it makes the noise. If you have no noise get a new belt. If you get the noise with the new belt it could be something with the A/C compressor.