Two problems related to axle hubs have been reported for the 2001 GMC Jimmy. The most recently reported issues are listed below.
Abs and 4 wheel drive was not working right took to dealer and they found right front wheel bearing was real bad they said that might be causing the problem and that it would cost 425. 00 dollars to fix have not repaired yet vehicle has 63135 miles on now but when it was inspected it had 55512 on it and the garage said there was some play in the front but thought it was idler are play which was in limits for PA now I don't knoe about that know.
Abs wheel speed sensor design does not provide an adequate seal with the unitized hub allowing moisture to cause a premature failure of the bearing on a 2001 GMC Jimmy.