Car started to run like crap, very, very rough. Did a compression test and found #6 at 30 psi and #7 at about 90 psi. Added oil to number 6 and the compression only raised to about 35. Other cylinder are in the 140 range. Set #6 on DTC and added compressed air. Air is pouring out the exhaust. I next removed both rockers from # 6 and tested. Air is still pouring out the exhaust. My question is, was my approach to the air pressure tests valid and is it almost 100% that this proves there is an issue with the #6 exhaust valve?
Thanks
Thanks
