No compression in cylinder #5
#1
No compression in cylinder #5
I had a bunch of problems the other day and i checked my o2 sensor and it was completely grinded off. So i tried changing wires around and it was throwing a p0300 code. So i checked the compression and cylinder 5 is giving me like 10 psi. Checked it against cylinder 3, which is giving me 125psi. What should i start checking? Also, when we cranked it, some crap shot out of the spark plug hole and and i saw an oily substance on the compression tester. If that is any indication. Thanks
#3
I had a bunch of problems the other day and i checked my o2 sensor and it was completely grinded off. So i tried changing wires around and it was throwing a p0300 code. So i checked the compression and cylinder 5 is giving me like 10 psi. Checked it against cylinder 3, which is giving me 125psi. What should i start checking? Also, when we cranked it, some crap shot out of the spark plug hole and and i saw an oily substance on the compression tester. If that is any indication. Thanks
you can put a table spoon of oil in the cylinder and see if the comp goes up. if not take the rocker arms off and perform a cylinder leak test to see where the comp. loss is