Pentastar 3.6L - Ticking Time Bomb ?

Hmm not good, mine isn't much older than yours...

What's your build date? Mine has a tick when cold, but seems to go away within a minute. 8000 miles on mine

Posted from the "office"

The fuel injection the OBDI system I'm running ('93 Cherokee) has always ticked. I thought it was a fuel injection design issue. I've had others tell me that it's normal.

Quote from MellowYellow

What's your build date? Mine has a tick when cold, but seems to go away within a minute. 8000 miles on mine

Posted from the "office"

July 2011

Quote from Slimer

The fuel injection the OBDI system I'm running ('93 Cherokee) has always ticked. I thought it was a fuel injection design issue. I've had others tell me that it's normal.

I thought is was no big deal since it has ticked since day 1. Over 21,000 miles it has ticked with no issues till yesterday. Its a common problem attributed to the faulty head cutting on the drivers side. We will see how my wife's 2013 goes.

Quote from whatevah

Hmm not good, mine isn't much older than yours...

Does yours tick? If you throw a code I would suggest you take it to Carman Jeep on 13. They have a good service department and are mod friendly. I did not buy this JK from there but they are working on it no questions asked.

Ahh yours is early production... I think mine is September 2011. I could hear a loud ticking on the beach (doors off, low speed, medium rpms) but no other issues besides lousy gas mileage.

I hear mine tick when I first start it up. It goes away after a minute or so and then going down the road during acceleration I can hear it tick for five seconds or so. Ive been following this for awhile on Jkowners. Hopefully mine isn't next. Just over 13,000 on the ticker. Build date 03/12.

Mine is 1 year old today. Built Jan 20, 2012. Just hit 13k and all is normal. Regular injector tick but nothing else.

Update- Carman Jeep got my part in next day! I am without my JK for 2 days or so and driving a 2013 Dodge Caravan . So far I am happy with how fast they got the part in. They said the heads are on back order but it showed up today. I will update when I pick it up.

Carman got my Jeep done a day early! I have a new head part number ending in AC. The motor still sounds the same on both sides now (loud and rattly) I will compare when my wife comes home. but My gas mileage has returned to a normal mpg, No check engine light. I will be wondering how the long term will be but I am very pleased with how fast and easy the service went. All in all my JK was down for a day and a half and so far is back to normal.