2006 Vue has tremble with low speed transmission shifts

The 1-2 shift solenoid valve on a Saturn Vue 3.6 is typically located in the transmission. The exact location of the solenoid valve can vary depending on the year and model of the vehicle, but it is commonly found inside the transmission's valve body. The valve body is the area of the transmission that houses the shift valves and controls the flow of transmission fluid to control the gear shifts.
It's important to note that accessing and replacing a shift solenoid valve on a transmission can be a difficult and complex task that requires special tools and knowledge. It is not recommended to attempt this repair unless you have experience working on transmissions and have the proper tools and equipment. It's also important to consult the Saturn Vue 3.6 service manual or a professional mechanic or transmission specialist to have the proper steps and safety procedures to follow.

I think you still have vacuum leaks

Have it smoke tested

Also look at fuel trim

The front oxygen sensors get
replaced at 100,000 on all your veh

From what I have seen, a tremble is usally an out of balance condition. Check you blades and see if you can see one of the fan blades that has been damaged. Eventually, it will affect the fan motor but it will take some time.

Does it always shake or is it at different speeds?

Hello. Welcome to FixYa.

Steering wheel tremble, or shaking, can usually be attributed to the fornt tires being out of balance, or, the tires themselves may be out of round, or, a rim could be bent.

I would suggest that you take the vehicle to a tire shop, and get the front tires spun-balanced. During that procedure, the tech will see if the balance is incorrect, the rim is bent, or if the tire is out of round.

Even if you have 'new' tires, an internal issue inside the tire could be the culprit.

Your best course of action is to get it to a tire shop, and get the above items checked out.

Thanks for choosing FixYa for assistance today.

Go to a garage and get the wheel balanced. If it is still coming back than check all wheel mountings.

First-NEVER add anything to an automatic trans.
Your vehicle should use Mercon V --PERIOD
Change it at least three times, to get the Lucas out.

Have the TPS Sensor checked out.
You most likely have a Tran Pack Solenoid going bad.
It is bolted to the valve body. You can do it yourself

This happened to my Buick. The front tires had little facets worn on them, causing the trembles. Yours sounds even more severe. But for my car, I adjusted the toe in and rotated the front tires to the back. The steering wheel doesn't tremble any more. But there is a rumble in the seat. I can live with that. Bad shocks. Bad alignment. These cause the facets.

some times this is caused by high engine idle, or there may be an issue with your transmission, i would start by adjusting the idle, "lowering it" you can find the correct procedure for this and the right rpm range for the car in gear, in most manuals

transmission, torque converter