One problem related to service engine light on has been reported for the 2006 Jeep Liberty. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 Jeep Liberty based on all problems reported for the 2006 Liberty.
When pushed to speed up at a fast rate and upon approaching 65mph or faster the service engine light flashes slowly. My mechanic found the code reader saying a misfire was happening. When that light flashes it starts to shake pretty bad. Determined that cylinder 1 has low compression. Only way to find out for sure what to do next is to tear down the motor which I do not have the money for that. Sad how waistful people are forced to be with vehicles. Its still pretty new!! we took good care of this Jeep maintaining it correctly since we got it with only 37k miles and has not had any problems till now. So this was a shock! before 37k miles I am not aware of this particular Jeep's engine repair history. Also this same Jeep had the clogged fuel line causing the tank to spill out while fueling up when it was not full yet.