3.6L ENGINE RELIABILITY

[Gear_AU]

Just had an 3.6 fail at 35k kms. The reported reason is oil ingestion. The motor will draw oil from the right hand bank if on a slope for too long resulting in heavy knocking.

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[Rodeoflyer]

And yet catch cans are non essential and laughed at.

 

[DanW]

Just had an 3.6 fail at 35k kms. The reported reason is oil ingestion. The motor will draw oil from the right hand bank if on a slope for too long resulting in heavy knocking.

Wow, what angle and for how long? I've been at 26 degrees which on the inclinometer isn't far from max.

 

[DanW]

And yet catch cans are non essential and laughed at.

What would a catch can do to prevent this situation at an extreme angle? That's not really their function, at all.

 

[Rodeoflyer]

What would a catch can do to prevent this situation at an extreme angle? That's not really their function, at all.

There's supposedly an updated PCV valve that will negate it. I plan to ask the dealer about it when I take mine in later this month for recalls.

 

[Gear_AU]

Wow, what angle and for how long? I've been at 26 degrees which on the inclinometer isn't far from max.

I depends on how steep, throttle inputs etc. looking at the sky kind of stuff

What would a catch can do to prevent this situation at an extreme angle? That's not really their function, at all.

It acts as a buffer to capture the oil being drawn in from the PVC

 

[BLS65]

"and then you can pay someone 2-3k to install it?"

What is this strange language you are speaking? My universal translator does not recognize it, LoL.

Twist your own wrenches, what you learn about your vehicle in the process is priceless knowledge. My first vehicle was a 1970 Olds Toronado with a 455 that did not run. I was given the car, a box of tools, and a Chilton's engine manual (AKA the bible of engines) on my 15th. birthday. I then spent the next year rebuilding the car. I was mad at the time but soon realized that it was the best gift that I was ever given.

 

[Valpo Jeep]

Last year we did a Pink Jeep tour in Gatlinburg and their Jeeps were based on the JK at the time. They get built up and carry up to 8 people or so on oversized tires and 1 ton axles. All this extra load in them as well as a private off-road park many times a day on each rig and they still get 250,000 miles from each Jeep.

pretty damned solid engine

 

[Rick4570]

Check Out How Surprisingly Durable This Chrysler Pentastar V6 Is After 626,000 Miles (thedrive.com)

 

[Shellbird01]

Buy a Honda, or Toyota when you travel, the Jeep is fine, but since you have doubts you will never feel comfortable with one. Jeeps are not for everyone, so live on the wild side of life and enjoy the experiences. Some spend there entire life worrying about what could happen and for them it usually does, pass on the Jeep to get the better percentages for you.

Honda Odyssey engine with zero issues recalled at 75k miles engine failed 20k miles later and not honoured.

 

[Shellbird01]

Have you done the ATF on your JL? If so, what fluid did you go with and did you find a filter without having to buy that entire pan??

My dealer said it doesn’t get changed? Tried to get It done 30k ago

 

[Rodeoflyer]

It's a 'lifetime' fluid according to the dealer.

 

[blnewt]

It's a 'lifetime' fluid according to the dealer.

Yep, as long as it gets 1 mile, or 1 day past the warranty that's the only life they're concerned with

 

[Rodeoflyer]

I've always had bad experiences with fluid swaps in auto trans. It's like they LOVE debris and are actually engineered that way. Auto transmissions have a lifespan and no amount of fluid swaps will help that. It's better to leave it be and just swap in another trans at 100-120k.

 

[blnewt]

I've always had bad experiences with fluid swaps in auto trans. It's like they LOVE debris and are actually engineered that way. Auto transmissions have a lifespan and no amount of fluid swaps will help that. It's better to leave it be and just swap in another trans at 100-120k.

Our Infiniti G37 had a sealed AT, after swapping the fluid the shifts were much improved and just overall transmission behavior was improved. Since the ZF manufacturer recommends a service interval I'm going to do that as I think they may have more interest in extending the life of there ATs vs. what FCA is concerned with. But yeah, there are ways that things can go wrong, especially w/ a pressurized fluid swap where deposits may become dislodged that could cause some harm, I've definitely heard of cases like that.

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