jtcu

I just purchased a 2013 LX 570 130k miles and discovered a issue afterwards that no one has been able to diagnose. When driving, some bumps in the road feel quite harsh and there is a shudder sensation (almost the feel of a transmission slipping). Doesn't seem to happen on smooth roads, and not usually noticeable on the interstate (which is why it was missed prior to purchase) I've shifted into neutral on one particular stretch of road where it is most noticeable and it still happens. I've replaced the accumulator globes, taken it to the Lexus dealer and even purchased new tires. None of those have helped and the new tires (more aggressive tread) have actually made the issue worse. No noticeable difference when changing from comfort to sport. When I changed the accumulator globes the fluid appeared to be new. Tonight I plan on flushing out the hydraulic fluid and replacing with the Toyota fluid in hopes they just replaced it with the wrong type of fluid and it's causing the issues. I ordered and should receive the ecu to usb cable by this weekend. I've already checked with the dealer on a return period no such luck, and since no one has been able to diagnose the issue I can't go to them with that either. If anyone has any other ideas I'd be thrilled to hear them.

UZ214

this is from the I8MUD forums
https://forum.ih8mud.com/threads/vib....193318/page-5


After research here in I8MUD and doing some investigating, I took the recommendation by our mudder community that the Loom or loon of wires by the EGR system near the back of the engine by the firewall may need insulation as the heat can cause disruptions. So I went down to the local auto parts store and bought a 4 dollar insulate tape, 100 degree think insulation... Wrapped that loom or loon of wires. Also, I found that the engine ground wire being the engine was just hanging and attached that to the engine. And per my cousins recommendation, twerk the throttle body sensor a bit and that may fix it.

Wolla!!!! The beast is fixed, beat a freaking mustang that tried to block me from switching lanes and even went to Sequia National forrest and Hume lake last Memorial day week and my baby preformed like a champ. I'm even using it for now as my daily home to work vehicle. Not more issues.

jtcu

Awesome! It seems more like the u-joint problem someone else in that thread described fixing, I'll be taking it into a local driveline shop hopefully today to have them check it out! Thank You!!

RA040423

Do you have a photo or description of where this is?

jtcu

What the u joint?

hankinid

You'd need to ask that question on 1h8mud.com

Google.

jtcu

yeah I know what the u joint is obviously from my previous posts. I was asking for clarification about what he was asking for but was apparently too short handed with my reply.

cpcc

what size rims are you running. I get something similar and have 21" rims. thinking that is my problem

jtcu

stock 20” it’s not the wheels, it’s more like the wheel is hopping.

cpcc

not sure what you mean by wheel hop, I feel like the steering column and truck hop. I've got 21" on mine and plan to go to 18"s to see if the problem goes away