Porsche 928 Problem Report
Porsche 928 Interior fan speed erratic due to faulty fan control resistor
When changing speeds at random or while going over bumps, the interior fan speed can be erratic. A replacement fan control resistor is required.
Erratic switches and controls can cause electrical problems.
A failing ECM or a fuel pump issue can cause a "No Start" condition.
The AC climate control system can be erratic. Diagnoses of the interior sensors, actuators, and...
Due to wear in the differential multi-disc clutch, the PSD (Porsche Slip Differential) locking...
Due to electrical interference from cell phones and secondary ignition faults, the vehicle's ce...