I got a 1997 jeep grand Cherokee with 4.0 HO when in gear with foot on brake the rev hits at 1500 an not in gear it hits around 4500.... How do I disable the rev....

SOURCE: 2002 jeep grand cherokee

Basicly you have to take apart the steering column cover and the switch is held in place with screws.
If you have to take the steering wheel off, it is best done by a qualified tech. There is an airbag in the steering wheel that has to be disconnected. THIS AIRBAG CAN GO OFF, PLEASE DO NOT TRY THIS YOURSELF!!!!!!!

SOURCE: 2002 Jeep Grand Cherokee jeep

you might try a governor sensor and solenoid

SOURCE: step by step instructions on installing brakes on a 1997 Jeep

Hi,I am sorry to say that if you need instructions for a job as safety related as this you should not be doing it.Sorry,but my family and friends use the same streets as you!

SOURCE: Have a 1997 Jeep Grand Cherokee 2.5 Diesel. Idles

Change fuel filter and air filter. If that doesn;t help you may have a fuel transfer pump pressure problem.

SOURCE: 1999 4 x 4 JEEP

disconnect and plug the vacuum line going to the brake booster under the hood. Now test for noise. If the noise has stopped then your power brake booster may be leaking.