the engine spins but its free spinning sounds like broke timing belt but its not
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2001 Kia Optima Question: location of cam & crank sensor
Answer #1Greg's Orange Auto (11856 Answers) , Orange, CA - (714) 361-9386globalhelper January 03, 2013, 12:44Master
its not those sensors ck compression poss head gasket issue
Answer #2ziptie12 January 03, 2013, 17:31Master
Timing belt may not be broken , but has the cam timing been checked? Belt stripped or jumped would give symptoms as you describe.Also check compression as globalhelper stated.