Another single-cylinder misfire question

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10-19-2013, 08:46 PM

#16

Jamie57

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Join Date: Jul 2009

Location: London Ontario Canada

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Year: 2000

Model: Cherokee

Engine: 4.0

Quote:

Originally Posted by MichiganCherokee

Bad fuel filter in tank for p0300 code? Has 168k don't know if it's ever been replaced. Just read a thread where a guy would have an issue with it running rough (debris got sucked up) shut off engine (released debris) started back up and ran fine before it got sucked up again. Sounds kinda what I'm dealing with. Now if I'm going to do this I want to drop my tank and clean it.....obviously run it til it's just about empty...undo gas cap..release pressure at fuel rail and unhook all fuel lines and electrical connections prior to dropping. What are good products to clean the tank...just warm water? ?

We have the plastic tanks. Just use hot soapy water. Make sure it's dry before you add fuel back in. You can add a bottle of Methyl alcohol after to make sure you got all the water out. It's supposed to pick up the H20 and carry it up with the fuel to be burned in the combustion chamber.