Ford F-350 Super Duty recurring limp mode issue after replacing four throttle bodies in eight months on Ford F-350 Super Duty

Some Ford F-350 Super Duty owners report experiencing recurring limp mode issues even after replacing the throttle body multiple times within a short period, suggesting an underlying throttle system problem. These owners have noted that persistent limp mode could also stem from electrical faults or sensor malfunctions within the throttle control system. Additionally, some have linked the recurring limp mode to throttle position sensor (TPS) issues that may cause the throttle to remain stuck at a high idle. In certain cases, transmission problems, such as hard upshifts, have been associated with these limp mode episodes. Furthermore, there is a possibility that the engine may be running on just one bank of cylinders, contributing to the limp mode experience. Given the frequency of these issues, it is advisable for owners to seek a comprehensive diagnostic check from a qualified mechanic or dealership specializing in Ford vehicles to effectively identify and resolve the root cause of the problem.