Multiple Cylinder Misfire - 2005 Jeep Liberty

One thing to try is obtain a aerosol can of MAF sensor cleaner and remove and clean the MAF sensor.

The MAF sensor is a primary input into the computer. And as it heats up and there’s debris on the wire elements it doesn’t measure the proper amount of air entering the engine. This then causes multiple/random misfires and codes. This is about the cheapest thing to try other than connecting a professional scanner to determine if the MAF sensor is the problem. I’ve expeirienced many vehicles that display multiple/random misfire codes but yet no MAF sensor code, tho the MAF sensor was either contaminated or defective.

Tester