lights are on, engine spins but wont start

2005 MERCURY MARINER
106,000 MILES
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SLED1958
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My 2005 Mercury Mariner will not start. When I turn the key the engine will free spin but will not turn the motor over. What can I look for to solve this? I can turn the key and all my lights and radio work but it will not turn over. The engine is free spinning, all belts are moving.
Nov 13, 2011 at 5:32 PM
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JACOBANDNICKOLAS
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When you say "free spinning" do you mean it sounds like it is turning faster than normal with no compression? If not, and it sounds normal, check to see if you are getting spark and fuel to the engine.
Nov 13, 2011 at 5:34 PM
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SLED1958
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Yes that is what I mean that it is spinning faster than normal and there is no compression.
Nov 13, 2011 at 5:37 PM
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JACOBANDNICKOLAS
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It sounds like a broken timing belt.
Nov 13, 2011 at 5:55 PM
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SLED1958
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it's neither the sepentine belt or timing chain
Nov 14, 2011 at 6:49 PM