What is your question?
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What is your question?
Why does my Sable have no compression in number 2 cylinder and good compression in the other five cylinders
What makes this problem better or worse?
Well maintained car the problem is new. It had a miss so new plugs n wires coil pak installed and miss still present so compression chk showed #2 had no compression while other five are goodno
How long has your 2002 Mercury Sable had this problem?
A few days
1 Reply
Hi - Dave here, contributing to RepairPal and providing expert advice since 2010. I am sorry to read about your engine problem. When one of your cylinders has no compression, and the other five seem to be fine, it is due to a failure of that cylinder itself either in the valve train or the block. Something is not holding pressure – have you done a leak down test to see if the valves are leaking? That is step one. There could be a cylinder wall or piston issue as well. If the leak down test does not yield results, removing the cylinder head on the affected bank is the next step. Good luck! If you need help -- https://repairpal.com/auto-repair-near-me Click the link to find some shops near you who can help out!