Question about Jeep 2003 Liberty Sport 3.7 V6

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Truck starts fine cold and the longer it runs the more it miss fires i pulled p0300 0302 0303.

While looking at live data noticed engine coolant temp going from normal around 200 to -50 or around that. i changed the sensor and no change in the live data. im lost!!!

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The codes refer to random misfires
misfires come from plugs, ht leads , fuel pressure , injectors, coils
As it heats up I suspect that you have a problem with an electronic component breaking down such as a coil/s, ignition module, fuel pump, or injectors

Posted on Jun 11, 2015

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Posted on Jan 02, 2017

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