ESP issue is getting old!
Thread Starter
JK Newbie
Joined: Apr 2015
Posts: 15
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From: Eagle Point, Oregon
OP, did that RC kit include a track bar tower for the rear axle? Reason I ask, every time I've chased this issue down I have been able to eliminate it by correcting the roll center with a rear tower. I've also noted some of the rigs don't have their rear axles centered. You can usually correct that issue simply by adding a tower and choosing a hole that centers the axle. Front axle offset can also cause this issue but the rear seems to trigger it the most.
Thread Starter
JK Newbie
Joined: Apr 2015
Posts: 15
Likes: 0
From: Eagle Point, Oregon
As as strange as it sounds you may be onto something here! I lowered the pressure to 28 psi and the ESP has yet to come on on normal corners. I was able to get it to come on when extra hard turning just to see if it would... I may try to lower it to 26 and see what happens, these Nitto Mud Graplers ride pretty rough at higher psi. Smoothed the ride out too.
I will ill test it some more and let everyone know what happens.
JK Freak
Joined: Apr 2009
Posts: 775
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From: Colorado
Thread Starter
JK Newbie
Joined: Apr 2015
Posts: 15
Likes: 0
From: Eagle Point, Oregon
Yes it it did raise it... I have not personally measured it but the alignment shop said it checked out ok.
this is is the lift kit!
3.5in Suspension Lift Kit for 07-15 Jeep JK Wrangler [608S] | Rough Country Suspension Systems®
JK Freak
Joined: Apr 2009
Posts: 775
Likes: 32
From: Colorado
Assuming the shop installed everything it looks like a reasonably full featured kit. Try measuring the rear axle centering. Pick identical spots on the frame side to side and measure from there to the inside sidewall of the rear tires. Be sure the tires are inflated to identical pressures and that you're not measuring tire lettering, etc. the readings should be within 1/4", preferably less.
Thread Starter
JK Newbie
Joined: Apr 2015
Posts: 15
Likes: 0
From: Eagle Point, Oregon
Assuming the shop installed everything it looks like a reasonably full featured kit. Try measuring the rear axle centering. Pick identical spots on the frame side to side and measure from there to the inside sidewall of the rear tires. Be sure the tires are inflated to identical pressures and that you're not measuring tire lettering, etc. the readings should be within 1/4", preferably less.
Finally got got a chance to measure the rear axle, it is very close within an 1/8" side to side.
Thread Starter
JK Newbie
Joined: Apr 2015
Posts: 15
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From: Eagle Point, Oregon
JK Freak
Joined: Apr 2009
Posts: 775
Likes: 32
From: Colorado
I'd be interested in seeing if the thrust is in spec. (Rear axle alignment.)
If all's as you say then I'd be zeroing in the steering wheel alignment. A slick way to see if it's actually centered to the electronics is to use the steering angle feature on an Aeroforce gauge. You can actually see any mismatch in real time as you drive.. Several of the tuners offer this feature as well. The Procal has a feature, too, but it's static.
If all's as you say then I'd be zeroing in the steering wheel alignment. A slick way to see if it's actually centered to the electronics is to use the steering angle feature on an Aeroforce gauge. You can actually see any mismatch in real time as you drive.. Several of the tuners offer this feature as well. The Procal has a feature, too, but it's static.