Rear Height Control sensors replaced now bouncing

[Treasure Hunter]

I replaced the two rear control sensors at my garage, since the air bags were holding air, but when driving in N, the air pump ran every few minutes.   When I left the car in the garage, in H, the air stayed for days, even when driving in my driveway under 10 mph, it stayed in H, any faster it goes into N and the air pump goes into action.  

Now, after the gargage replaced the 2 Rear Height sensors, the car now bounces when hitting a bump and bottoms out in a pot hole.  The garage did not adjust the vehicle height.  the nut in the threaded area, I believe is the adjusting height.  I want to first try to go Higher,  which direction would I go to for higher?

Also, the airpump is NOT pumping as often as it did before putting in the 2 new height sensors.  Any comments or suggestions will be appreciated.  Closest Toyota/Lexus Dealers are over an hour away and I don't want to drive too far if things go south. Thank you, Bill

[RX400h]

Quote

CoPilot:
Here are some suggestions and steps you can take:

1. Adjusting Height: To raise the vehicle height, you'll need to turn the adjusting nut clockwise on the threaded area of the height sensor. Make small adjustments and test drive the vehicle to see if the ride height improves.

2. Air Pump Running Frequently: Since the air pump is not running as often after replacing the height sensors, it mightindicate that the sensors are now correctly detecting the vehicle height. However, if the pump is still running more than expected, there could be an issue with the air suspension system, such as air leaks or a faulty relay.

3. Bouncing and Bottoming Out: This could be due to the height sensors not being properly calibrated or adjusted. After making adjustments, ensure that the sensors are correctly aligned and the vehicle is level.

4. Professional Inspection: Given the complexity of the air suspension system and the issues you're experiencing, it might be best to have a professional mechanic inspect the system, especially since the closest dealership is over an hour away.

 

[Treasure Hunter]

Thank you for the instructions to move the adjustment nut clockwise.  Will try that first.  Bill

[Treasure Hunter]

44 minutes ago, RX400h said:

 

Question, are there lock nuts that need to be loosened first, adjust and then tighten lock nuts again?

[RX400h]

On 10/18/2024 at 6:57 PM, Treasure Hunter said:

Question, are there lock nuts that need to be loosened first, adjust and then tighten lock nuts again?

Bill, I have not done this, myself but I have also never encountered locknuts in any of my newer vehicles. This is why accurate torque is very important.