Car will squeal - for lack of a better word - in warmer weather with the a/c on when first started. Turn the a/c off all is quiet. Once the car is warmed up all is quiet as well.

Noise comes from power steering pump side of engine.

A/C compressor is quiet and functioning. I replaced the tensioner pulley today as it had a slight looseness to it.

All accessory belts are new and adjusted correctly. Alternator is new as well.

Crankshaft pulley/harmonic balancer is new as well.

Perhaps it is the power steering pump...just strange the a/c would cause it to make a racket...

Timing belt has 50,000 km on it.

Any thoughts?

 

I had this problem on another car. Turned out to be the AC clutch bearing. Not sure how much they are for the acuras.

 

I'll have to check that out!

OEM $177 from Delray...

 

Well I headed over to Harbour Freight and splurged on a Mechanic's Stethoscope. $2.99 on offer.

Of all things it is the fan motor going. The fan only kicks in when the a/c turns on, hence no noise with the a/c off.

The Stethoscope is a really handy tool that is for sure.

$192 from Delray for a new one...ouch...I will look elsewhere...