JordanMeyers12

Hello,

I have a 2006 Lexus IS 250 with 223k miles. Since I’ve gotten the car, it’s driven fine until a few months ago when it started jerking when coming to a complete stop. Decelerating the car is not an issue, but when it is about to reach a full stop, the entire car jerks like it’s being hit. Over the past few months, we’ve nearly complete rebuilt the car. We’ve replaced the transmission, a solenoid sensor, changed the tires and brakes, and much more. However, even after replacing the transmission, the issue persists. To add onto this, when I was driving it today, I put it on cruise control around 60-80 MPH. When it started to speed up to maintain the speed entered, it began jerking. The jerking would happen every few miles driven, so I refrained from using cruise control. One of my family members thinks that an incorrect O-ring could be causing the issue, but I am open to hearing what the issue could be?

Protholl

It might be the crankshaft speed sensor. That sounds like what happened to my truck a month or so ago. Once the sensor was replaced no more problems.

2013FSport

iTrader: (2)

Have you scanned it for pending codes? North or 200k is suspect of carbon build up. Has it been inspected for carbon build up and when was the last time the plugs were replaced and MAF cleaned?

2013FSport

iTrader: (2)

It sounds like you are saying replacing the transmission did not solve the problem? Was there something else wrong with the trans? Any other disfunction?
Whoever installed new trans, were they competent enough to set the fluid level correctly?

Yodog

My car did this. It was because my pcv valve was completely blocked off. Just my anecdote