Not sure if its coincidence or not, but I recently changed my CPS and soon after developed new problems. My blinkers come on but do not blink and my cruise control doesn't work. Also, I noticed a high pitched noise when my a/c was on and that it progressively was not cooling as well until now it doesn't cool at all. Any suggestions as to where to start looking first?

 

What is a CPS?

 

Sorry. Crank position sensor.