Wheel lock for a split second over sixty mph

06JEEPWK

MEMBER
2006 JEEP GRAND CHEROKEE
5.7L
V8
2WD
AUTOMATIC
144,000 MILES

Vehicle runs and drives perfect. No noise or vibrations from any where. Took it to the dealer they could not find whats wrong with it. They hooked up a computer to it and founds no codes. Transmission shifts great. They lifted it up and ran it to sixty five mph and it no longer locks the wheels up. Any suggestions? I happen to have all four disc brakes. I will be sure to look at all my brake lines and make sure they are good.

5 Replies

KEN L

MASTER CERTIFIED MECHANIC
42,877 POSTS

Hello,

Lets take another look at this one. I sounds like you have an ABS controller that can be going out locking the wheels for a spit second. Lets start by running the ABS codes.

Here is a video to help us get started:

https://youtu.be/rTtAnsOlZU4

Please let us know what you find. We are interested to see what it is.

Cheers, Ken

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Saturday, March 3rd, 2018 AT 2:58 PM

06JEEPWK

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3 POSTS

The dealer hooked up there scan tools and found no code. They even went as far as taking the entire abs system off.

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Friday, March 9th, 2018 AT 7:54 PM

KEN L

MASTER CERTIFIED MECHANIC
42,877 POSTS

Do you hear any weird noises while you drive the car?

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Saturday, March 10th, 2018 AT 11:02 AM

06JEEPWK

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3 POSTS

No not at all. My check engine light came on and codes where p0700 and p1776. I switched the transmission speed sensor hoping it was the issue it unfortunately was not the issue. And I also noticed that when I shift the jeep manually and keep it in 3rd gear it stays in 3rd gear. No down shift or up shift.

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Monday, March 19th, 2018 AT 3:25 PM

KEN L

MASTER CERTIFIED MECHANIC
42,877 POSTS

Can you tell which tires are locking front or back or just one? Can you get a video of the problem and upload it I know its a lot to ask but without me test driving it you must be my eyes and ears.