# 4 is fine. Well within spec.

 

I though spec was..... no more than 2% difference between cyl?

 

Spec is within 10-15% of each other

 

Oh...well I'm not worried about it then...thought it was 2%, guess now I just need to find my vacuum leak, coolant leak, and replace the knock sensor...or rewire it to the ecu...thanks guys....yotatech rocks again!!

 

If you are losing coolant and have white smoke on startup, scope your cylinders to find out if it is indeed what it seems to be. Clean piston top is bad news. If so, yeah, you are headed for a teardown and I wouldn't drive it until you confirm all is good.