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Discussion Starter #1
Has anyone that has installed Nitto Trail Grapplers 265/70/17's have a grinding noise when turning a corner too fast? It mostly happens when I am getting on or off the interstate on the ramps. If I go just over 30mpg there is a grinding like noise which only started after I put on the new tires. I also have spacers and a 2 1/2 in lift on it. All the welds were grinded down and wheel wells cut out to accommodate the tires. I obviously so much slower now, but was just wondering what that noise might be?? The tire traction control sometimes come on when the noise is also being made.
 

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The electronic stability control is kicking in.
It is seeing a potental understeer condition and it tries to create a oversteer by applying the front brakes a bit.
That is why you are seeing the traction control lamp for a moment.....it is telling you a intervention is taking place.
Your lifting of the vehicle increases the sensitivity of the system since your center of gravity is now higher......hence, a slightly higher possibility of a rollover.

You can shut the tcs down to reduce/prevent this but I suspect you are maybe going into the corner a bit too fast and the system is saving you from yourself.

Take heed of the warning the system is providing.

Rob
 

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Did you recalibrate the computer for the new tire sizes? If not, the ESP may kick in at odd times because the differential in wheel speeds between left/right and front/rear when going around a curve won't match with that the computer thinks it should be based on vehicle speed, thereby thinking you are starting to slide or slip and kicking in.
 

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Discussion Starter #4
Matt, would who would be able to re caibrate the system?? How much does it cost? Would the place I bought the tires from do that or would I have to take it to a dealership? Thanks for the input guys! It just seems to be going off at odd times, like mentioned above and a lot of places that is not needed. I guess I can just turn it off though, thanks agian.

Nate
 

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As long as your jeep doesn't have the 3.7L you can get a programmer (im using the superchips flashpaq) to reprogram the speedo. It has some other useful features as well.
 

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I have the 3.7 :( I guess im beat ???
I usually press the tcm off, so i can drive it like i stole it... I dont like a computer telling me not to wheel my 52,000.00 toy :)
 

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Man if you paid 52,000 for a 3.7L commander you got ripped off. My optioned out Limited/Hemi had an msrp of ~45k. (I saved 23k by buying used... so I didn't need to put stickers on it. :))

There's been talks recently about someone coming out with a programmer for the 3.7... don't remember if anyone's tried it yet
 

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Yeah, I really hope you reversed the 2 and 5 by mistake! Anyway, I, too, have experienced the grinding noise with my lift/tire setup. I attributed it to either tires rubbing or traction control. However, it sounds awful. I'm glad to see some posts assuring me that it's nothing to be concerned about.
 

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I have the 3.7 :( I guess im beat ???
I usually press the tcm off, so i can drive it like i stole it... I dont like a computer telling me not to wheel my 52,000.00 toy :)
$52,000??? Surely you meant $32,000... If not, I have this bridge.......... lol ;-)
 
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