Problem Reports
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2005 Jeep Grand Cherokee
Brake Pulsations Due to Warped Front Brake Rotors
Due to warped front brake rotors or variations in the thickness of the rotors, brake pulsations may develop. The best method to reduce pulsations is to use an "On the Car" brake lathe (as long as the rotors are suitable for turning). "On the Car" equipment can correct variations (or "runout") in the rotor surfaces because it also corrects variations in other components (e.g. the hub).
Front and Rear Differential Pinion Seal and Transfer Case Leaks
Leaks at the front and/or rear differential pinion seal and from the transfer case are common. Leakage from the transfer case normally occurs at the case-mating surfaces and require removal of the transfer case to reseal.
Replace Transmission Cooler Return Filter if it Has "AB" Suffix
If the transmission delays initial gear engagement after being parked overnight or longer, it may be due to a suspect transmission cooler return filter. If the transmission was recently serviced and the part number for the cooler return filter contains an "AB" suffix at the end, a new filter should be installed.
Software Updates Address Erroneous Illumination of Warning Lights
Software updates are available to solve various Check Engine Light and warning light related issues.
Multiple Displacement system must use correct 5W-20 oil
Software updates available for erroneous "Service 4WD System" warning light
Check Engine Light Due to Failed Thermostat
The thermostat may fail to close completely, causing the Check Engine Light to illuminate. This problem will prevent the engine from reaching normal operating temperature; a new thermostat should be installed.
Software update to address limited engine speed of 3,900 RPMs
Updated software will solve an intermittent problem where engine speed is limited to 3,900 RPM while driving.