The heating element inside the fuel bowl filter housing can short out, blowing a fuse and causing no start. The filter housing develops cracks in the aluminum housing and leaks fuel. Read the 7.3 CPS article – 7.3 CPS-Cam Position Sensor 7.3 Powerstroke Common Problem #2 – 7.3 Fuel Bowl – fuel filter/water separator Read this article for details on 7.3 CPS troubleshooting and replacement. **Careful though, because after 2001 Ford changed the way the tach received electrical signal and this is no longer a reliable method to troubleshoot the CPS. If the tachometer doesn’t move, the CPS is probably bad.** An easy way to diagnose a failed CPS is to check for tach movement when you crank the engine over. The failure of this sensor would create a no start condition or would shut the truck off as you were driving. You bring those and we’ll show you where to point them… Top 10 7.3 Powerstroke Common Problems 7.3 Powerstroke Common Problem #1 – 7.3 CPS–camshaft position sensor Time, tools, and some tenacity go a long way in DIY repairing your 7.3 diesel’s most common problems.