1987 Toyota 4x4 Pickup 22RE

I have low compression in # 2 and 3 cylinders (125 psi) and compression on
# 1 and 4 cylinders is (170 psi). The #2 and #3 are not firing and the
plugs are wet. Both went at the same time and not sure what was the
problem. Had a bit of valve tap before it happened. I have changed the
plug wires, and checked for spark. There is spark at all cylinders but 2
and 3 seem low (is there a way to test). Everything moves freely. Is
there another compression test to run. Thanks for the help

I'd run a leak-down test. It sounds to me like a blown head gasket between
#2 & #3.
"Calgunz" <jeff.quarles@cox.com> wrote in message
news:d773464c8337d545c38866e7921f16c5@localhost.talkabouttrucks.com...[color=blue]
> I have low compression in # 2 and 3 cylinders (125 psi) and compression on
> # 1 and 4 cylinders is (170 psi). The #2 and #3 are not firing and the
> plugs are wet. Both went at the same time and not sure what was the
> problem. Had a bit of valve tap before it happened. I have changed the
> plug wires, and checked for spark. There is spark at all cylinders but 2
> and 3 seem low (is there a way to test). Everything moves freely. Is
> there another compression test to run. Thanks for the help
>[/color]