after getting a alignment my esp comes on in a turn def. a tight turn. All jug handles (i kno the nj thing) are killer. it never did this b4. anyone have help here? i went back to the place that alignment and they said it was all in the green.

 

hey Renzo, were you having trouble before with the way jeep was riding? I see you have skyjacker lift, do you have adjustable control arms? if not there isnt much the shop could do besides take your money. Is your steering wheel straight? Do you have print out of what your caster angles at? Cam bolts used by some skyjacket lifts will not allow you to get the caster to where u need it from what I've seen

Q: What is Caster? How much do I need?
A: Caster is the angle upon which your front axle sits at in order to help keep your Jeep driving straight. Positive caster, which is what you want, will cause your axle to sit in a way that your pinion shaft will be dipping ever so slightly towards the ground. Too little or even negative caster angle can cause your Jeep to wander and feel 'flighty' or 'darty' as I've heard some people call it. From the factory, your JK will have +4.2° of caster and if you lift it and install larger tires, you will need to increase this amount to help compensate for the modifications. At 3"-4" of lift, I have found that +6°~8° of caster will do wonders to help improve the handling of your Jeep JK Wrangler.

see these links
https://www.jk-forum.com/forums/show...72&postcount=2

http://project-jk.com/jeep-jk-write-...-end-alignment

 

Yes! Straight steering wheel and more positive caster is resolution of a problem .

 

wow....well good thing is a didnt pay for it. well this castor i can do myself?? dealership? regular garage?

 

Renzo-

Let me know how u make our buddy... I am having the same issues. kicks on all the time on off ramps, etc. I did the lift (skyjacker) in my driveway and is the 3rd lift ive installaed and never had this issue before. Technology!

 

I've written up the explanation in a couple previous threads so I'm not going to go into the long version here (check my posts if you're interested).

The bottom line, just as everyone else has said, is that your steering wheel needs to be centered and you need to have enough caster. You can't adjust caster without adjustable lower control arms or cam bolts (most people recommend against using cam bolts).

You need at least 5 degrees of caster and 6 - 7 is preferable for 35s.

With my axles centered, my steering wheel centered, my caster at 6 degrees driver and 7 degrees passenger, my ESP is just like stock. It never fires unless I'm actually sliding.

 

thanks...now only ? is that the alignment place does the castor stuff? or the place that did my lift?

 

Yes,exactly same experience !

 

In the write-up about caster the upper control arm is mentioned. Here you mention the lower control arm. Which one is better used to find the correct caster?

 

I have both adjustable uppers and lowers. Most people start with adjustable lowers up front and keep the stock fixed length uppers. So they would have to use the lowers.

In theory if you have both adjustable uppers and lowers you could make the adjustment with either or both even. But it's much easier to drop the lowers to make the adjustment. I do it with the wheels/tires on and the jeep on the ground.

I basically use the uppers to set the position of the axle front to back (i.e. set the overall arm length to center the axle in the wheel well). Then I use the lowers to set the caster.