What to do if your 6.5L PMD is stalling?
What to do if your 6.5L PMD is stalling? In 99% of cases if you have the classic 6.5L stalling (and no optical sensor codes) the problem is the PMD and the recomended solution is our 6.5 diesel FSD heatsink kit! Why does my 6.5L diesel pump stall? Check these items before replacing your 6.5 PMD. SYMPTOM: Your 6.5L Diesel stalls just as if someone had reached over and turned off the ignition switch. CAUSE: There are two main causes. The first and most common is the PMD (also called FSD). The other possibility is the Optical Sensor located in...