1999 Jeep grand cherokee 4 wheel drive not working Read Also: Jeep cherokee 2002 4 wheel drive not working 1999 Jeep grand cherokee heater fan not working 1999 Jeep grand cherokee oil pressure gauge not working 1999 Jeep grand cherokee blower motor not working 1999 Jeep grand cherokee 4 wheel drive system 1999 Jeep grand cherokee 4 wheel drive