My number1 cylinder is only reading 50 psi on my 95 f150 what could be the cause and how do i go about fixing it thanks?!





1995 f150 xl standard cab 4.9l inline 6 m50d-r2 5 speed manual transmission

 

Give #1 a squirt of oil, if the compression goes up, it likely is rings. If not, a burned valve likely is the cause.A blown head gasket or a cracked head is also possible. Would be nice if you provide more vehicle info. and what the other cylinders read.

 

1-50
2-115
3-125
4-125
5-150
6-115
had a hesitatiom at first now ive changed iac, coil, distributor, wires and plugs new clutch disk slave and master cylinder as well as the line, i did a valve adjustment to try to see why i had exaust valve open on #3 cylinder and yes i put oil in the cylinder amd it acted a lil better also i have done a egr delete and all other emmisions components.

 

Without a large increase I would suspect a valve issue.