Question about Ford Taurus X
No compression in any cylinder
You are showing 2 different problems, no compression in any cylinder and no compression in rear cylinder.
Going with no compression in any cylinder, if the camshaft is not turning you should not have compression in most cylinders. If one cylinder has both valves closed you may have some cranking resistance. Your timing chain or gear is broken. Look if you can at any openings for a PVC pipe in the valve cover or oil fill cover on the valve cover.
There is a chance you can see some valve rocker arms and if they are moving when the engine is cranked. Otherwise you will need to remove a valve cover to observe the rockers.
Posted on May 13, 2014
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Posted on Jan 02, 2017
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