Question about 2003 Mercury Mountaineer

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On an occasion my Mountaineer will shake and act like it will die

I took it to a shop and they said it was my spark plugs and wires so I changed them and it is still doing it! Any ideas?

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My guess is that there is some thing wrong with your fuel system. Try to put a can of injector cleaner in the tank next fill up. if that does not help it start trouble shooting each injector by unpluging it waiting for the engine to start to run differently (only takes about a second for this to hapen) If it starts to run different with the injector un pluged then the injector is ok if the engine does not run differenty the the injector is bad. Also check for vacume leaks, and test your fuel pump

Posted on Jun 30, 2009

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Posted on Jan 02, 2017

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