Question about 2002 Mercury Sable

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Will an misfire prevent car from starting - 2002 Mercury Sable

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You might try spraying some starter fluid into the intake manifold (remove the plastic ductwork). It the engine then starts, even for a few seconds, your starting problem is "fuel", and you can then trace that out. (fuel pump, pressure regulator, filter, injectors,)

If the engine still does not start with the spray, then it probably is ignition. And the crankshaft sensor could be the problem.

Posted on Apr 06, 2015

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Please let us know if the engine will turn over, or if it turns over and just does not fire. There are different causes for each. If it does not fire, use some starting fluid to see if it tries to run. Your Inertia switch could have activated. For a run/stall defect, a crankshaft sensor could initially cause a miss and then fail to prevent starts. Your best bet is to include more details and modify your posting.

Posted on Apr 06, 2015

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A MISSFIRE USUALLY WONT KEEP A MOTOR FROM RUNNING UNLESS THE TIMING IS OFF THAN THE WHOLE ENGINE IS OUT OF TIME..BUT JUST A FOULED PLUG OR BAD PLUG WIRE SHOULDT KEEP IT FROM STARTING AT ALL..A ENGINE CAN RUN VERY BADLY IF ITS NOT TIMED TO EXCACT OEM SPECS..OR VERY CLOSE ANYWAYS..ITS USUALLY COUPLE DEGREES BTDC..BUT THAT INFOS AVALABLE SOMEWHERE..ALSO VALVE TIMING IS VERY IMPORTANT TO GET CORRECT..YOUR ENGINE COULD HAVE JUMP THE TIMING BELT ALSO,DUE TO WORN PARTS.YOU NEED TO CHECK THE ENGINE TIMING ON TDC AND MAKE SURE IT ALL LINEING UP..IF ALL THIS IS OVER YOUR HEAD PAY A MECHANIC TO LOOK AT IT..GOOD LUCK

Posted on Apr 06, 2015

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Yes if it on multiple cylinder

Posted on Apr 06, 2015

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