What did you do to your Grand today (ZJ/WJ)?

[Adrian D]

I installed the tuned TCU and took it for a longer drive.
With the ramp up torque increased, the shifts are indeed faster, the hanging between 4 and 5 is also gone.

No bumps or harshness, I'm pretty happy about it. But I now want more ramp up, so I guess that's the next step

[5oclock]

AdrianD this will be very interesting to see the final results when you are happy with the tune !!
Have you had a problem with engine mounts? Mine are stuffed and I dont seem to be able to find any new inserts. Just thought it was worth asking since you definitely think outside the square and you may have a fix?

[freerider170]

Originally Posted by 5oclock

AdrianD this will be very interesting to see the final results when you are happy with the tune !!

Have you had a problem with engine mounts? Mine are stuffed and I dont seem to be able to find any new inserts. Just thought it was worth asking since you definitely think outside the square and you may have a fix?

I bought mine of Amazon
NTY EEP/WJ/091AB
try searching that, they came from UK

Sent from my Redmi Note 7 using Tapatalk

[JeanLuke]

I bought these ones:

Eagle BHP 1116R Motor Bushing Grand Cherokee Jeep Liberty Engine Mount 2.4L 3.7L 4.7L Front Right or Left : Amazon.com.au: Automotive

 

Eagle BHP 1116R Motor Bushing Grand Cherokee Jeep Liberty Engine Mount 2.4L 3.7L 4.7L Front Right or Left : Amazon.com.au: Automotive

If you look on eBay you can find them. The hint is the compatable engines. Not all listings say they are Eagle BHP 1116R.

[5oclock]

Thanks Freerider170 and JeanLuke .

[Adrian D]

I'm pretty much happy with the tune as-is. Under heavy acceleration, with shifting at 3000rpm, there's an ever so slight bump when it shifts but the shift is really firm and quick. Tomorrow I will see how it behaves uphill on a long climb.

Eagle 1116R is what I used in my old WG
I'm a f'ing cheapskate, that's why I search high and low for solutions. Currently working on DIY beadlocks for JK steel rims with store bought self centering rock rings

Same stuff as other round bushings in WJ's and KJ's.

Top tip: once you get the bushing out of the aluminum holder, put the holder in the oven until it gets to 150*C. The bushing slides in like a breeze. Otherwise, being a 90mm diameter bushing, it's going to be HARD to press.

[5oclock]

Thanks AdrianD, with your tuning on the TCU , have you done anything with the torque converter clutch lock up points? Have you ever tried switching the solenoid manually ?
I was having some brake drag problems on the rear brakes on the WG , so pulled the calipers all apart and found the pistons were all larger than they should be at the outer end. So this resulted in brake drag when new pads were fitted. Rock auto to the rescue with all new pistons ,seals, dust covers!! So while I was at it I did the same on my WH 3.0 crd as well. So well worth the effort, no drag on either Jeep now!! A little bit of rust between the dust cover and the piston ring on the WH, cleaned up easy with the Dremel and a tiny wire brush. So before I changed out the worn out disc pads there was not much noticeable drag. But with new pads in, the pistons must have been sticking in the caliper badly enough that they would not retract after using the brakes heavily. The theory is ,over time that heat or brake fluid cause the phenolic pistons to swell.
PS the pistons were only about 5thou over, but the are a pretty close fit in the bore. Also I found there was no way I could get the new pistons back in over the new piston ring just using brake fluid as a lube, so I had to use a good rubber grease that was approved for brake use.