It seems that the Chrysler's new Pentastar V-6, slated for high-volume use in the Jeep and light-duty Ram lineups, is suffering from ticking noises in the cylinder heads. Some owners are reporting "ticking" sounds from inside the engine under certain conditions, According to Automotive News.
The issue arose after consumer complaints specifically related to the Jeep Wrangler. So far, only 7,500 Wrangler engines have been serviced, and the fix is reported to be fairly simple: replacing the heads with an updated design. Chrysler is fixing the heads wherever needed under warranty at no cost through the automaker's dealership network. Our guess, depending on how widespread this issue is, could likely make take some time as those additional corrective parts will be in high demand.
There's no word yet regarding any of the Pentastar engines having the same ticking issue when installed in the new Ram 1500. Although Chrysler is not being very specific about exactly what is causing the ticking, the company says the noise can be traced back to several different factors, including the use of bad gas.