Advice on 05 Liberty Timing & Rockers

Tuf-Mud · **Posted:** Tue May 24, 2016 5:34 pm

Well, the ARPS, Rockers, Stage2 Weeks kit went well and everything back up and running so far is good. Engine seems to be smoother and overall in the past two days what I replaced was for the better no limp mode yet.

Now for the bad news.

I'm now hearing my turbo chirp/Whirl up and down at certain points which I did not have before or at least never noticed before. When everything was taken apart I checked for play and did not notice anything. My Turbo is a OEM and Rebuilt at roughly 18,000 miles on it. I know these are not suppose to be rebuilt but the current warranty i had only would approve rebuilds.

Also, I am getting a horrible vibration that disappears at 60-65 mph, I know the Shudder on the TC but this seems different, I'll do some investigating this weekend to determine the cause if possible
in the driveline. The Turbo wouldn't cause a this Correct?

geordi · **Posted:** Tue May 24, 2016 6:41 pm

What are the conditions that cause the vibration? What road conditions, speed, throttle? Is it only at certain speeds or under certain load conditions such as stronger acceleration?

The more details you can offer, the better. I wouldn't think that a turbo issue could cause a vibration, so there is that. As far as hearing the turbo more than before, that is absolutely possible b/c of the intake elbow and blocking the EGR, now you are getting more boost into the cylinders and more combustion through and out, which drives the turbo stronger.

Turbo whistle is nothing to worry about. Turbo jingling like keys or screech / scrape type noises are very bad. Pull the intake tube and take a GOOD long look with a camera and flashlight at the vanes - you are looking for any evidence of polishing / fresh shine on the ends of the blades and on the edges. Shine on the edges indicates insufficient filtration, and the turbo is hitting sand or other detritus in the incoming air. People running those stupid K&N air filters have this problem a lot. Shine / bent / chewed ends indicates that it is hitting the inside housing - you really don't want to see this.

Tuf-Mud · **Posted:** Tue May 24, 2016 7:11 pm

I Light throttle, I haven't been pushing it hard since getting back up and running. The Vibration is worse at 40-55 but is consistent from about 30 to until 60-65 mph. I'll keep a better tab of it on my way home from work 40 miles.

geordi · **Posted:** Tue May 24, 2016 8:21 pm

Could be a driveshaft needs to be balanced, or maybe you tossed a wheel weight. That is a very wide band of speed to have an engine-based vibration. I don't think it is from the engine and definitely not from the torque converter.

LMWatBullRun · **Posted:** Wed May 25, 2016 8:39 am

Motor mounts can cause issues, too.....

Tuf-Mud · **Posted:** Wed May 25, 2016 3:29 pm

I looked at the motor mounts when I was doing all the previous work and they seemed fine. They may have 171000 miles on them but they were intact.

So Yesterday I paid a lot of attention to the vibration and it is throughout acceleration from start, noticeably worse between 40-55 and once I'm at 60 on the highway cruising like nothing is wrong. My Way to work is flat highway and 1 minor pass no more worse on the uphill, Definitely something to do with the drive-train and not the TC i suspect. I put it in part time and it seemed to dull the vibration down (weird) but made it more noticeable while off the gas??? This weekend I will be removing the front Driveshaft and a short drive to see if that does anything as well as replacing the u-joints in the rear and possibly have the wheels balanced. I had them balanced recently though so it seems odd that they would be unbalanced in less then 3000 miles. One thing that makes me suspect the rear is before this I did have both of my Rear Calipers seize up and had to replace them, They did not seize at the same time and I replaced them on separate occasions right after the other was replaced. Could I suspect that I might of warped an axle shaft if I ran a seized caliper to long before noticing???

Turbo I'm sure is metal to metal they way it sounds, I think some how it is not getting the oil it needs. I will most likely be purchasing Weeks new Replacement Turbo.

I almost feel I should change the darn title or start a new thread at this point now

geordi · **Posted:** Wed May 25, 2016 4:51 pm

Don't do that, it helps that we can see the history of what has been done.

Sent from my iPad using Tapatalk HD

Mountainman · **Posted:** Wed May 25, 2016 8:45 pm

Tuf-Mud wrote:

I looked at the motor mounts when I was doing all the previous work and they seemed fine. They may have 171000 miles on them but they were intact.

So Yesterday I paid a lot of attention to the vibration and it is throughout acceleration from start, noticeably worse between 40-55 and once I'm at 60 on the highway cruising like nothing is wrong. My Way to work is flat highway and 1 minor pass no more worse on the uphill, Definitely something to do with the drive-train and not the TC i suspect. I put it in part time and it seemed to dull the vibration down (weird) but made it more noticeable while off the gas??? This weekend I will be removing the front Driveshaft and a short drive to see if that does anything as well as replacing the u-joints in the rear and possibly have the wheels balanced. I had them balanced recently though so it seems odd that they would be unbalanced in less then 3000 miles. One thing that makes me suspect the rear is before this I did have both of my Rear Calipers seize up and had to replace them, They did not seize at the same time and I replaced them on separate occasions right after the other was replaced. Could I suspect that I might of warped an axle shaft if I ran a seized caliper to long before noticing???

Turbo I'm sure is metal to metal they way it sounds, I think some how it is not getting the oil it needs. I will most likely be purchasing Weeks new Replacement Turbo.

I almost feel I should change the darn title or start a new thread at this point now

The motor mounts don't last that long. Put it in drive and reverse with your foot on the brake, and watch to see if the engine or transmission moves significantly, or if there is a clunk. Two people helps

APC9199 · **Posted:** Fri May 27, 2016 8:56 am

Mountainman wrote:

Tuf-Mud wrote:

I looked at the motor mounts when I was doing all the previous work and they seemed fine. They may have 171000 miles on them but they were intact.

So Yesterday I paid a lot of attention to the vibration and it is throughout acceleration from start, noticeably worse between 40-55 and once I'm at 60 on the highway cruising like nothing is wrong. My Way to work is flat highway and 1 minor pass no more worse on the uphill, Definitely something to do with the drive-train and not the TC i suspect. I put it in part time and it seemed to dull the vibration down (weird) but made it more noticeable while off the gas??? This weekend I will be removing the front Driveshaft and a short drive to see if that does anything as well as replacing the u-joints in the rear and possibly have the wheels balanced. I had them balanced recently though so it seems odd that they would be unbalanced in less then 3000 miles. One thing that makes me suspect the rear is before this I did have both of my Rear Calipers seize up and had to replace them, They did not seize at the same time and I replaced them on separate occasions right after the other was replaced. Could I suspect that I might of warped an axle shaft if I ran a seized caliper to long before noticing???

Turbo I'm sure is metal to metal they way it sounds, I think some how it is not getting the oil it needs. I will most likely be purchasing Weeks new Replacement Turbo.

I almost feel I should change the darn title or start a new thread at this point now

The motor mounts don't last that long. Put it in drive and reverse with your foot on the brake, and watch to see if the engine or transmission moves significantly, or if there is a clunk. Two people helps

I second this motion! I was hit in the front left corner by a guy who swerved into my lane back in October. The insurance company totaled the vehicle but I bought it back to rebuild it. I thought the impact caused the timing belt to skip a tooth because the engine was rattling and vibrating the whole vehicle really bad. Well, after replacing the rockers, having the injectors inspected, rebuilding the entire top end with ARP studs and a new thermostat, it turned out to be the motor mounts! I don't feel like I wasted any time or money doing the things I did because they have all proven to be great for the longevity of the engine, but there you have it. Its worth checking them first since they are cheap and easy to swap out.

Tuf-Mud · **Posted:** Tue Jun 07, 2016 8:53 pm

Well, It has been Two weeks since I did the Rockers, ARPS, Stage 2 Weeks. No Limp as of yet, Knock on Wood :wink:

. I figured the Vibration out and it was 1 of my u-joints, I looked at those rear u-joints multiple times and even had a buddy look and both of us didn't notice it. That is until 1 night I had a couple beers and decided to lay underneath and almost instantly saw the bad joint. Replaced with Moog Joints and it Solved the Vibration and the whirring I assumed was the turbo.

So I'm riding high right now, engine is smoother running overall. Gave her a oil change this weekend to clear out the assembly lube and will report how it holds up in the future. So far very happy with the rocker replacement and arps installed. Thanks for all the advice on getting this work done, I'm very glad to have my Liberty back up and running as a daily driver and would've given up on it if it wasn't for this site.

Advice on 05 Liberty Timing & Rockers

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