Several TSBs addressing the transmission of the 2002 model were issued including numbers 02138, 02191, 16148, and 16064. Other areas of common problems are the four-wheel drive system and the drivetrain. It … Whilst most things made by Ford have the mechanical finesse of a three day old burrito, the Ranger seems to have stepped up to the plate. Solution The number one most common problem is related to the vehicle's air bags with 168 problems. While most love the 2.3-liter turbo four-cylinder engine and 10-speed transmission a common problem … The website also states that the vehicle only needs to be brought to the mechanic for unscheduled repairs an average of 0.2 times a year or once every five years. Problem: 562 problems have been reported for the 2001 Ford Ranger. different systems that you could be dealing with. The worst complaints are transmission, accessories - interior, and body / paint problems. bad carrier bearing. the differential cover and inspect it. Symptoms include overheating, coolant smell coming from under the hood and the coolant seeping in … Especially on aluminum