Engine Knocking Noise Problems of Jeep Wrangler

Noticed significant knocking noise coming from engine that continued to get louder. Took to dealer for a nice 2 thousand dollar fix. Dealer replaced right side lifters, rocker arms, and both cam shafts. This sounds way too much like the 2011-2013 issue that Jeep "fixed" and was under warranty for those it sounds like. Very coincidental and I am not the only one with these issues based on Jeep forums.

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Engine failure. While traveling at 75mph on the highway, the vehicle lost power and threw a check engine light. I pulled over to the side of the road and shut off the vehicle and attempted to restart it. The vehicle did not immediately restart, but did so on the second try. I drove away and approximately a mile down the road, the vehicle began to knock and make banging noises, I pulled over once again and called a tow tuck. Vehicle was later diagnosed with failed rod bearings and required a full rebuild. Vehicle had 125k miles at the time of failure.

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Tl the contact owns a 2016 Jeep Wrangler. When the vehicle was started, the contact heard an abnormal knocking noise coming from the engine. The vehicle was taken to woodhouse Chrysler Dodge Jeep ram fiat (2101 6th st, sioux city, IA 51101, (712) 277-3221) where it was diagnosed that there was damage to the passenger side camshaft caused by rocker arm failure. The vehicle was repaired, but the failure recurred on the driver's side camshaft and rocker arms. The manufacturer was informed of the failures. The approximate failure mileage was 130,000.

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There is an issue with the valve lifters that cause a ticking or knocking sound while stationary & in motion. Worse while in motion, we have been told by two different mechanics that to repair the issue the engine has to be disassembled.

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While driving on the highway, a loud knocking sound began to come from my engine compartment. As I slowed to exit (at the next interchange) the 3. 8l v6 engine had a bearing seize and threw a rod out the bottom of the engine block. From the research that I have done this is not an isolated incident for Chrysler. There have been many reports of this engine failing even with impeccable maintenance. I received no indications or warnings prior to the engine blowing. Just as I slowed down the oil pressure indicator light illuminated but at that point it was too late.

I started to hear a knocking noise for 3-5 seconds on a cold start. It did not do this on any sequential starts for that day. Took it to the dealer, who changed oil filter and oil. Still made sound on receiving vehicle. Took in again and dealer replaced the lifters. Still made noise upon receipt. Took in for a third time, they are now saying it is a normal noise, even though it never made it before. Jeep specialists say that this is a normal noise as well. After researching on-line, I have found a large amount of information leading to a malfunctioning cylinder head on the exact make and model of my Jeep engine. There have been thousands replaced, but for some reason this was not even considered for my vehicle.

Had to add oil at nearily every fillup. The dealer said that was normal to add oil every 1000 miles!!! ended up short on oil, oil light never went on and trashed engine. It made a horrible knocking noise. I replaced it at a cost of $6118 as the car only had 49560 miles on it.

My 2007 Jeep Wrangler 4-door sahara unlimited has experienced lower block defect with symptoms of large knocking noises. The oil had been changed regularly and without notice or low oil light indicator, at 75k miles, the engine is useless. Apparently, Jeep dealers are repairing several of these defects although I see no other complaints at this site.

-the contact owns a 2008 Jeep Wrangler 2-dr 4x4. While driving approximately 55 mph a banging sound was coming from the engine, followed by a decrease in the engine power. The vehicle continued in operation to the residence, and upon inspecting the vehicle there was no oil in the engine. The vehicle was towed to an authorized dealer where the technician informed that the engine needed to be replaced. The vehicle had not been repaired. The failure and current mileages were 40,000.

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I bought the Jeep new in February/March of 2007. In December 2009, at approximately 45k miles, I heard a loud knocking noise that sounded like it was coming from the bottom end of the engine. Took the Jeep to my regular oil change center and they confirmed the knocking sound. I then took the Jeep to local dealer who informed me that it was spun bearings and there was metal shavings in the oil pan. They put in a new motor (Chrysler offered some assistance after much complaining and arguing on my side, but it still cost me $1,500 as it as out of warranty). Now, in August 2012, at a total of 90k miles (approximately 45k on the new motor), the bearings are spun again. This will be the 3rd motor in this Jeep. I have the receipts from my regular oil change center showing that I have regularly changed the oil. The service department at the dealer says they are not aware of any other ppl having this issue. However, internet research shows significant numbers of ppl with 2007 Jeep Wranglers that are having spun bearings at around 45k miles. Jeep should be replacing these motors at no cost to the consumer as this appears to be a design defect.