Problem Reports

Car stutters as if misfiring plugs or broken lead to the spark plug - problem determined to be intake valves.

 Rookie

I purchased a 2005 Jeep Liberty Sport on 12/9/10. Within 100 miles after driving it off the dealer's lot, the check engine light came on. The dealer has had it in for repairs on 4 different occasions for a total of 37 days in three different repair shops. I have only owned the vehicle 71 days and it's spent 37 days in repair shops! They have put in 6 new spark plugs, a new serpentine belt tensioner, performed a two part valve and induction system cleaning, installed a new water pump and finally did a valve job on it. They just completed installation of 12 new valves and keepers. Thankfully all this work was performed under warranty. I'm picking my Jeep up from the dealership today (after 26 days in the repair shop) and I'm praying that the check engine light stays OFF!!!

 Rookie

rough idle,misfiring,hesitation. Mechanic tried to clean intake valves,same problem. Said bad intake valves. I am going to get rid of it.

 Rookie

Changes plugs, wires, cleaned use Seafoam Spray...next comes the intake valves. The dealer wanted to charge $1600 for the job!

ABOVE STATED TRUE

 Rookie

Vehicle stalled, would start but die at idle. towed to Repair shop where found #5 intake valve keeper missing, broken valve spring and damaged valve. Valve guidein the head was cracked(no longer able to get a replacement guide from Jeep). Had to replace left cylinder head and valves. Replaced intake valves and valve locks on right cylinder head (a kit sold by Jeep to fix this problem)as per Jeep Service Bulletin TSB 09-007-06. Although we had this vehicle in to Chrysler on more than one occasion both for engine light illumination and rough idle, no one ever alerted us to this service bulletin and the fact that there was a kit to prevent the resulting $2300.00 repair.

I've changed the apark plugs, the coils, had the unjectors flushed and my check engine light remains on and blinks occasionally.

The OBD codes indicate misfiring issues with the 2nd, 4th, and 6th cylinders, but I'm leaning towards an issue with the intale valves!

The most frustrating part of this is the fact that I've taken it to the dealership three times in the past three months and they have yet to fix the problem, but they still charge me an arm and a leg for their so-called "repairs"!

I've never had any problems with my Liberty until recently, so we're taking it in to a local repair shop this afternoon. I'll provide an update as soon as I know what the REAL problem is!