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need to know the compression on a 87 ford 2.3 liter 4 cyclinder
Depending on year of vehicle - some have a separate coil for each cylinder 2 may be bad?Check plugsCheck plug wiresDo a compression check to see if problem is internal
Bad spark plug or wireBad valve (do a compression test)Bad piston "
The compression can be different from one engine to the next depending on mileage and maintenance. What is important is that all cylinders are within 10/15 lbs of each other.
All the cylinders should be within 10% from the lowest reading to the highest reading for a healthy engine.
It varies from one engine to the next but, what you want to see is that all the cylinders compression readings are within 10% of each other.
Either ( 6 cylinders ) with the 3.0 liter and the 4.0 liter V6 engines or ( 4 cylinders ) with the 2.3 liter four cylinder engine
The 2.0 liter 4 cylinder engine has ( 4 cylinders ) The 2.5 liter V6 engine has ( 6 cylinders )
You could have the 2.0 liter - 4 cylinder engine which has ( 4 ) cylinders , or the 2.5 liter V6 engine which has ( 6 ) cylinders
If the 3 cylinders are adjacient sounds like it may be a bad head gasket or bad head. Did vehicle overheat?
What's more important is that all the cylinders should be within 10% of each other.
4-cylinders, the 3.5L's have 5 cylinders