Three problems related to engine clicking and tapping noises have been reported for the 2007 Jeep Wrangler. The most recently reported issues are listed below.
There was not a fire but thought there was and 911 was called. I had the oil changed in March and again in July. In septermber there was a clicking noise coming from the engine and I pulled into a drive way and shut off the engine. I asked someone to look at it and when they tried to start the engine smoke came out of the vents and engine would not turn over. Turns out, that the Jeep had no oil in it and the engine burned up. The repair for a new engine is $5200. There were no warning lights at all. No "change oil notice", "low oil pressure" light, "overtemp" light, or "check engine" light. Had there been some kind of warning light before I ruined the engine it would not be so costly.
As driving on highway engine started to make clicking noise, called local Jeep dealership and brought into shop no engine lights or oil lights on, service preson told me that oil was 5 quarts low in a 6 quart engine and the engine bearings were stripped need new engine and life time powertrain warranty will not cover engine. When I ask service preson why this happen he could not and would not give straight answer simple said " aftermarket oil filter, and I found no leaks" then asked if it was the oil filter he said " no I'm not telling you it was the oil filter!" then I said "if it is not the oil filter nor you found no leaks where did the other 5 quarts of oil disapear to. It must be a deffected engine. I just change the oil 2000 miles ago!" in all service department will not tell me why the engine failed or how it happen niether will Chrysler.
2007 Jeep Wrangler sahara 2 wd with 15,000 miles on it. Without warning the Jeep lost power, and started making clacking noise under acceleration. When I pulled over to the side of the road, the oil light came on. Main bearing was ruined.