Quote:
Originally Posted by Searles Lewis
I replaced all of the spark plugs, the coil pack ,and the spark plug wires. With all of the spark plugs disconnected, it no longer makes any noise. Zip, silent. I do not know of the post you mentioned, I'll go back thru them right after I hit submit on this on.
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A compression test will tell you if the valves are burned or not along with the rings being good or bad. It does not tell you if the valve or valves on a particular clyinder are opening or not, as long as the valves stay closed it will build compression if the piston rings and piston are good.
With all the spark plugs removed the engine can rotate much easier and with less resistance since there is not any combustion being created in the clyinder thus less pressure on the rod bearings.
By all means check the camshaft sensor and syncronizer, but I recommend getting a new sensor and syncronizer if replacing ( with a new syncronizer you should get a alignment tool with it), these parts used could be faulty also and salvage yards will not give a warranty on some thing like that, at least not where I am at. Yes a new part can be faulty, you never know either way.