HOW-TO: Compression Test

[Dysphagia]

HOW-TO: Compression Test

-get a compression tester (this is one of the more expensive varieties, make sure it has a long enough lead to make it down into the spark plug tunnel)

-remove plug wires from valve cover (they can be left on the coil)
-remove a spark plug
-install compression tester in the spark plug hole
-remove the plug for the coil(pictured below)

-crank motor(watch the gauge rise when it stops going up stop cranking)
-record the peak value
-repeat for other 3 cylinders
-replace spark plugs
-replace wires
-plug in coil

 

[nevinsrt]

Symple enough i havent done that in a while reminds me i need to do it again
good write up