Dodge or Jeep 3.7, 4.7 Engine Noise from Rocker Arms Falling

[Billwillwhipurass]

i have a 2004 Ram1500 that I bought brand new with the 3.7 and 35 inch tires at 156k now with nothing but reliability . My fiancee has an 06 Dakota 3.7 with 110k that shes had since 2008 thats had zero issues . I will never buy another brand truck as long as i live

[astrak1001]

I have a 99 Jeep with the 4.7 at 174,000 miles with no engine problems. It has recently developed a tick that increases with engine RPM, but goes away as the car heats up. It sounds more like the noise is coming from under the vehicle so I'm pretty sure it's not a rocker arm, maybe an exhaust manifold bolt that is loose. They are great engine's if taken care of.

[DenLorsTools]

I know what you mean. I've owned 5.2's (318 CID) and 5.8's (360 CID) and they were great engines. The 4.7 (Mercedes) I have in my Dakota has been great so far but I only have 53,000 miles on it. I plan to keep the oil changed often and watch the the temp gauge closely. My neighbor had well over 100,000 miles on his Dakota with no issues. Good Luck.

[BlackaCidic]

@DenLorsTools My dakota is going strong with 300,000 miles.

[RiceEater01]

had a 4.7 v8 in my dakota, WORST MISTAKE EVER. Majr overheating problems i guess there known for warping and cracking heads allot. And heard they have bad oil problems, should of never got rid of the 5.2 one of the best motors ever

[DenLorsTools]

I've had 5.2's (318 CID) and 5.8's (360 CID) they're great. The 4.7 (Mercedes) I've got has been great-only 53K.

[istuddd]

how much does this cost to repair im considering buying a 2003 jeep liberty 3.7 with 150k on it

[MrMountainVOL]

this just happened to my jeep

[m036094]

Mine sounded the same, and the guy I bought it from said he had over heated it. I figure heat causing thinning of the oil causing the lifter to collapse and the rocker popping off. Untorqued the cam lifted it up and put it back together, now it runs like a champ. I am going to be running 10w40, If it is good enough for my cummins it should work in the Jeep.

[superhawkn]

does this affect all new jeep wranglers and dakotas 2011 back?

[DenLorsTools]

@superhawkn Not sure if the newer model years have this problem. Best bet is to treat all 3.7 and 4.7 engines as if they are affected. Keep the oil changed often and level FULL. Also doing a fuel induction/injector cleaner is advisable.

[greggv8]

Yup, that's a dropped valve seat and popping back into the intake.

[SunFireFarm]

Aeration? I'm putting one back together for a friend, where rockers had come loose and it was due to valve seats coming loose and not allowing the valve to close. The rocker arm then didn't receive pressure from both sides and fell loose. I'm tapping the valve seats back in but I don't know how long they will last when the engine's back together. The engine in question had the heads removed.

[Stoner171]

man,ive paid for it twice myself,total bummer.

[DenLorsTools]

More information in the repair article - click on the link in the video description. DenLors Auto Repair blog has more info on tools and tips for making car repairs easier. Auto tools are for sale at our main website, DenLors Tools.com