I turned on my air conditioner yesterday and noticed it was only blowing hot air. The green light on the A/C selector button was on. I turned it of and noticed the engine did not act as though the A/C was ever engaged. Today, I tried activating the A/C while the engine was at idle. I could...

Hello everyone, I need some help. I have a re-manufactured engine in my car currently at 40,000 miles with no check engine light (automatic transmission). I have gutted the pre-catalytic converter and used spark plug de-fouler with my O2 senor to waive off check engine light (known...