Remove the wiring harness from the back of your 2001 Chevrolet Corvette blower motor. Remove the blower motor retaining bolts. Remove the blower motor fan. Reverse the process to install the new blower motor.
You can go to auto zone and borrow one of their compression tools, it screws into where the spark plug goes and reads compression as the motor turns over. You will need the specs for that particular motor which i am sure they can provide for you.
loosing compression does not mean you have to get a new motor it can just mean u have a blown head gasket if its an old car If compression is lost on only a few cylinders, then check the head gaskets. If compression is lost on all cylinders, check for a worn or broken timing chain.