WHAT STOPPED THE LIFTER NOISE 2011 DODGE GRAND CARAVAN

chuckt said:

TaxiGirl, this thread is related to your other thread in which your title asks how long you can run with a broken rocker. And in the other thread, you talk about the familiar ticking sound. Am I missing something that is different between these two threads? The video you just posted at 1:31 is what was covered in the other thread. Or are you now asking if you can get some mileage by using a different lubricant?

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No, basically I was thinking that since thus master mechanic told me that I needed to replace all of the camshafts, all of the timing chains etc. that in fact that is what it needed and not just another couple of bad bearngs in a couple of the roller rockers. I have spent thousands on keeping my van running to this point and just do not wanna keep throwing money in it unnessarily

chuckt said:

GLHS60 is correct. No oil is going to correct a worn part or overly loos tolerances. Sort of like saying that some miracle oil will reduce piston slap when the source is too short a skirt or/and too loose a tolerance between piston and bore.

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In fact the noise did go away completely for 6 months.

TaxiGirl said:

In fact the noise did go away completely for 6 months.

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The same as me saying that the noise went away as my 70 year old ears lost their hearing. The problem was not corrected. Tapping? What tapping?

GLHS60 said:

Let me say this again please, if any oil change or supplement reduced or eliminated the noise it is hydraulic lash adjuster related.

oil = hydraulic

Remember the STAR Case bulletin, S1309000016 I posted on one of your threads??

If one follower is faulty, its recommended to replace them all.

Oil will not repair a faulty follower for 6 months, 6 days or even 6 minutes.

Thanks
Randy

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What is a follower?

Follower = rocker arm
Lash adjuster = lifter

Thanks
Randy

I found this video very informative, however the noise was not all that loud, at least not too me. Interesting non the less.

If it where mine, i would have kept driving it without a clue.... as I am so immune to the noisy Pentastar.

TaxiGirl, the cam follower is that little roller on the rocker arm. It is always in contact with the cam surface following the surface in the cam creating the motion of the valves. On the push rid motors, it is the lifters (hydraulic or solid) that are in contact with the cam so they are the followers.

Taxi; interesting video. The defective cam follower [aka 'rocker'] was due to a bad needle bearing in the follower assembly. That could self destruct at any time. And cause severe damage to the cam lobe. Seems like a not too difficult job. But it always seems easier on TV. I am impressed by how clean the engine was. If it was mine, I'd change the hydraulic lash adjuster too. As this might have caused the bearing to go bad.

In my mind, a rocker arm is like a see-saw at the playground. A roller rocker arm has needle bearings in the middle, or a roller that rides on the valve stem. The important thing is to understand how the system works.

GLHS60 said:

Follower = rocker arm
Lash adjuster = lifter

Thanks
Randy

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So, buying all four camshafts, 24 roller rockers, timing chains, if I did not get the actual lifters, I may still have the noise?

I think it was my 1996 3.0L that I replaced all those little things I called lash adjusters. They were a steel slug with a hole for the oil pressure to build. Sure quieted that engine down though.

TaxiGirl said:

So, buying all four camshafts, 24 roller rockers, timing chains, if I did not get the actual lifters, I may still have the noise?

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Yes, if some of the lash adjusters are weak or sticky. After putting all this money into the job, I'd change all the lash adjusters. To add, because of having rollers on the cam followers, the camshaft surfaces may last a while longer. A good inspection of them including the cam bearing surfaces should be done before making that decision. Then again, time is money.

Others could give you advice on the timing chains. The chain replacement looks like a big job.

pt006 said:

Yes, if some of the lash adjusters are weak or sticky. After putting all this money into the job, I'd change all the lash adjusters. To add, because of having rollers on the cam followers, the camshaft surfaces may last a while longer. A good inspection of them including the cam bearing surfaces should be done before making that decision. Then again, time is money.

Others could give you advice on the timing chains. The chain replacement looks like a big job.

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Yes, i got all of the rockers already. I will get the lash adjusters but, I do not think they are called that on Moparonline. Since the ticking noise and maybe before I havr noticed a loss in power when accelerating, especially on a small hill like coming out of the airport. It is like it air restricted and even it does not pickup until i am on level ground. IT usred to have a lot of power and did whatever i wanted it to, but its sounds like the airtake pipe to the airbox is disconnected. Do you know what I am saying? but, it is not unhooked. The air filter is fine. The plugs were changed about 45k miles ago, I cannot find a vacuum leak, both cats were replaced 150k miles ago. Its like something is just not there like it was before. I had hoped that all of these parts would helped but the more I think about it, except for making the noise go away, I am second guessing the advice to order all those parts. Especially when it could just be lash adjusters and rollor rockers.

Ray Green said:

I think it was my 1996 3.0L that I replaced all those little things I called lash adjusters. They were a steel slug with a hole for the oil pressure to build. Sure quieted that engine down though.

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But did it run any better?

Didn't change the way it ran. It ran fine, just a bit clattery at times.

What Chrysler calls valve lifters [from above] they also call 'tappet valve lash' at the bottom left side of the page. The diagram is too small for me to see much.

pt006 said:

What Chrysler calls valve lifters [from above] they also call 'tappet valve lash' at the bottom left side of the page. The diagram is too small for me to see much.

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Thank you. I ordered everything else but thise and it turns out thise are the things that i need.