4.6 low compression on 3 cylinders
hello guys, I'm new to this forum and I am currently helping someone repair their 1996 crown victoria 4.6l
The car was running bad, like it had a bad head gasket or something major. I looked under the hood and saw that the intake manifold was cracked so i replaced it with a new one. I still have the same problem.
So I proceeded to do a compression test. I found good compression on all the cylinders except numbers 6, 7, and 8. 6 had about 50 psi 7 had about 35-40 psi and i barely got any pressure on 8.
I pulled the driver side head off. nothing looks suspicous to me yet. I'm wondering what to do now to figure out what went wrong.
Your help is appreciated.