Question about 2001 Jeep Grand Cherokee

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Malfunction Indicator light on and flashing.

I have a 2001 Jeep Grand Cherokee Laredo, straight 6, 4.0L. It's running hard with jerking when pressing the gas, seems okay in neutral. I had it scanned for a code and it came back Cylinder 1 was misfiring. Hubby changed the plugs with no change in how its operating. The 'malfunction indicator light' is still on and blinking. Any clue as to what this may be?? Help!

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  • dillard1 Jan 03, 2009

    We have the same problem with our 2001 Jeep. We had it put on a machine and it showed we had cylinder 4 miss-firing. We had already changed the plugs which didn't help. The sales department man suggested a new plug wire. We have it ordered, so I don't know yet if it will help, but will let you know.

    Mountaintop

  • Tomeka Nolen Oct 16, 2013

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  • 302 Answers

Check the fuel pump and fuel filter

Posted on Dec 07, 2008

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