Question about 2001 Mercury Sable
Check out your crank sensor and coils. For the crank sensor just first check that the connection to it is clean and free of corrosion. When it misfires does it misfire on just one or two cylinders. Many cars share coils, one for two plugs. Follow the HT leads back and see how they are shared between coils. If two cylinders sharing the same coils are misfiring then this good evidence that their shared coil needs to be replaced. Alternatively if you have separate coils physically swap the coils around and see if the misfire also moves. If it does, it is obviously a fault with a coil set.
Posted on Oct 13, 2010
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Posted on Jan 02, 2017
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