Lx570: uneven spacers but even truck height.

[Ronin201]

I just bought a 2011 Lx570(woot!) and I was looking to even out the rake of the truck by adjusting the spacers. The front driver side spacer is maxed out to lift. The passenger front is in the middle of the allowed travel. The fender height is only 1/4" different. The truck is sitting on flat ground. Is something tweaked? There was a clean Carfax. The fenders in the back are the same height.

 

[ryanCA]

Congrats on the new truck. Any pics? AHC , correct?

 

[Ronin201]

Congrats on the new truck. Any pics? AHC , correct?

Yes AHC. I wanted to do a sensor lift in the front to even out the truck.

 

[Ronin201]

View attachment 3867116
Yes AHC. I wanted to do a sensor lift in the front to even out the truck.

 

[OregonLC]

I would suggest getting the 'Launch' OBDII tool and checking out what your offsets are. It could be that a prior owner, or shop, has the settings off.

This Thread.

This is the one I have.

Edit: Why does one side have shiny new hardware and linkage? I know it's a 'clean carfax' but that's not always indicative. I'd give it a thorough inspection. It's probably just shadows, but does the front bumper have a different tint than the fender?

 

[Ronin201]

I would suggest getting the 'Launch' OBDII tool and checking out what your offsets are. It could be that a prior owner, or shop, has the settings off.

This Thread.

This is the one I have.

Edit: Why does one side have shiny new hardware and linkage? I know it's a 'clean carfax' but that's not always indicative. I'd give it a thorough inspection. It's probably just shadows, but does the front bumper have a different tint than the fender?

Good eye! Yes the driver side has different hardware and linkage. Seller said nothing about it.

 

[lx200inAR]

Definitely a new sensor. Or at least linkage arm. No way a 15 year old one would look that clean. Might check to see if it’s OEM or a cheap aftermarket. It may not matter, but at least good to know.

 

[Ronin201]

View attachment 3867118

View attachment 3867119

I'd like to be able to lift the front end and fit 34's at some point. Anyone have ideas how to fix this?

 

[tbisaacs]

I'd like to be able to lift the front end and fit 34's at some point. Anyone have ideas how to fix this?

You don’t need a lift or sensor adjustment to fit larger tires.

I’m not sure what you are asking. If one sensor is maxed out and the other isn’t, they aren’t going to be the same. Max them both out and then measure. This is the most common way to eliminate rake on an LX.

To fine grain dial them in you need techstream so you can use the height offset utility (HOU).

 

[Ronin201]

You don’t need a lift or sensor adjustment to fit larger tires.

I’m not sure what you are asking. If one sensor is maxed out and the other isn’t, they aren’t going to be the same. Max them both out and then measure. This is the most common way to eliminate rake on an LX.

To fine grain dial them in you need techstream so you can use the height offset utility (HOU).

Well here in lies my dilemma and reason for posting. I don't know, but I suspect that moving one side and not the other will make for a lopsided truck. I've watched every sensor lift vid I could find and all of them had the sensors in the middle like my passenger side bracket. I was hoping someone would recognize the bracket or know how to adjust an already maxed out bracket so it would match the other side when it's moved. The front of the truck is an inch and a half shorter than the back. I thought I read that the texhstream is more for small adjustments. I'm no expert and if I'm wrong then awesome.

 

[tbisaacs]

I feel like we’re misunderstanding each other. Yes you need to move sensors on both sides. I would max them both out and measure. If you are within 1/2” side to side then call it good.

If you want to be precise you can use something like a dial caliper to measure the position of each sensor to match them but it still won’t be perfect side to side.

HOU is the most precise way to adjust but even then it won’t be perfect.

 

[Ronin201]

I feel like we’re misunderstanding each other. Yes you need to move sensors on both sides. I would max them both out and measure. If you are within 1/2” side to side then call it good.

If you want to be precise you can use something like a dial caliper to measure the position of each sensor to match them but it still won’t be perfect side to side.

HOU is the most precise way to adjust but even then it won’t be perfect.

Sorry if I'm not explaining well. Right now the truck is sitting pretty dang even side to side. Within a quarter inch. This is with the driver side sensor already maxed out while the passenger side is sitting in the middle of the bracket. With the one side already maxed out, I'm effectively blocked from raising the driver side any more.

 

[tbisaacs]

Ah I see, my bad. If truck is level within 1/4” then you’ve already won IMO.

If you really want to diagnose It, there could have an offset already applied in techstream. Given one of your sensors is newer looking than the other it’s not a leap to assume one failed and a new one was installed and an offset was applied trying to fix what was a bad sensor.

So you can check that, or replace the other sensor as well just in case, or live with it.

AHC friends, what are we missing?

 

[OregonLC]

AHC friends, what are we missing?

I think he's wanting to do a sensor lift to reduce some of the rake yet he can't because one side is already at the mechanical limit.

So either there's a mechanical issue to fix or it's an electronic offset that needs to be adjusted. I agree, until he looks at it using the OBDII tool it's all speculation.

While waiting for that tool to be ordered, I'd give the front end a good look over to see if there's anything that looks bent or repaired. I'd also look at the shiny sensor to see if it's a Toyota part or after market. If the latter, then start with replacing it with Toyota parts.

 

[Ronin201]

I think he's wanting to do a sensor lift to reduce some of the rake yet he can't because one side is already at the mechanical limit.

So either there's a mechanical issue to fix or it's an electronic offset that needs to be adjusted. I agree, until he looks at it using the OBDII tool it's all speculation.

While waiting for that tool to be ordered, I'd give the front end a good look over to see if there's anything that looks bent or repaired. I'd also look at the shiny sensor to see if it's a Toyota part or after market. If the latter, then start with replacing it with Toyota parts.

You got it Thank you. I will look into ordering an OBDll today. Thanks to all for sharing your knowledge.

 

[lx200inAR]

The truck can and most likely does balance the pressure on the front end, so even with the sensors being misaligned, if the gate valve that balances the front was opened the front height would go back to whatever the average pressure of the AHC system and the springs lets it set to. I’m sure the system gets angry with the sensors being so far off, possibly it adjusts more than an average system would. You need to get something (techstream or one of many obd2 tools and see what the sensors are reporting. If they are reporting the difference you see in the adjustment, then I’d try to get the one that’s off back to the middle. You could also just skip all that and either max out your other sensor if you want to get rid of the rake, or put your maxed out sensor back. I suspect the first option will give you some lift, and the latter will probably drop the front a little. I wouldn’t check for level or higher/lower heights until you’ve driven it around the block once.

 

[Ronin201]

The truck can and most likely does balance the pressure on the front end, so even with the sensors being misaligned, if the gate valve that balances the front was opened the front height would go back to whatever the average pressure of the AHC system and the springs lets it set to. I’m sure the system gets angry with the sensors being so far off, possibly it adjusts more than an average system would. You need to get something (techstream or one of many obd2 tools and see what the sensors are reporting. If they are reporting the difference you see in the adjustment, then I’d try to get the one that’s off back to the middle. You could also just skip all that and either max out your other sensor if you want to get rid of the rake, or put your maxed out sensor back. I suspect the first option will give you some lift, and the latter will probably drop the front a little. I wouldn’t check for level or higher/lower heights until you’ve driven it around the block once.

So you're saying that just raising the one might raise both sides?

 

[lx200inAR]

Possibly. Either way, won’t hurt anything to try. If it does something sub optimal just put it back to how it was. Like I said though, definitely take it around the block before you start measuring things.

 

[lx200inAR]

I’ll add, I personally wouldn’t do anything until I saw what the sensors were reporting. But I also don’t really think it matters that much. I just like to have as much info as possible.

 

[Ronin201]

I’ll add, I personally wouldn’t do anything until I saw what the sensors were reporting. But I also don’t really think it matters that much. I just like to have as much info as possible.

Good point, can't have too much info. The OBDll gets here tomorrow.