I have a 97 Jeep Cherokee Laredo 4X4 it has the 42RE transmission ... problem its popping out of gear & making a grinding noise. I have replaced the governor sensor & solenoid ... when I changed them at 2 different times the transmission would work for a bit then do it.... It works in 4wheel low no prob..

SOURCE: 01 jeep Grand Cherokee transmission problem

Reboot system by disconnecting negative terminal on Battery, with ignition Key on and engine not running, remove terminal for more than two minutes and connect it back, it will spark a little do not panic, and try it again

SOURCE: 2001 jeep grand cherokee laredo with trany prob.

Throttle Positioning Sensor About 45 dollars and 3 mins to change. Its by the throttle body. JULES

SOURCE: Transmission problem

I had a shifting problem. The car would start in the wrong gear and shift at wrong times. I repaced the governor postion sensor and tranny fluid and the problem has been fixed for several years. Did you replace the tranny fluid?

SOURCE: 02 jeep grand cher. stays in 1st gear till 4500

Which trans do you have??? The 4.7 has the 45RFE and the 4.0 has the 42RE. If you have the 42RE, try replacing the connector on the output speed sensor. I have seen intermittent problems with the connectors as they get older leading to falling into low gear and not shifting up

SOURCE: 2002 grand cherokee laredo humming/grinding

sounds like you have a problem with one of your lines on your power steering or one of its components. the grinding noise could also be one of your pulleys that have gone bad too. check your steering assemby gear box.