the fault is glow plug module
LOST COMMUNICATION WITH GLOW PLUG CONTROL MODULE or GLOW PLUG CONTROL MODULE CIRCUIT OPEN
under the battery tray
It is the rear driver side.
The glow plug relay is on the drivers side of the truck in a relay box on the chassis frame behind the drivers side tire. which module is it?
Symptoms of a bad glow plug module in a 6.0 diesel engine may include hard starting, especially in cold weather, increased exhaust smoke, and rough engine operation. You might also notice a lack of power during acceleration and a potential check engine light indicating glow plug or related issues. Additionally, the glow plug module may fail to properly heat the glow plugs, leading to prolonged cranking times. If these symptoms occur, it’s advisable to have the module and glow plugs inspected.
It is under the shelf that the under hood battery sits on.It is under the shelf that the under hood battery sits on.
You have a problem in the glow plug system. You will need to test for a shorted glow plug by making a test harness with a 15 amp fuse in it and applying 12 volts to each glow plug to see which blows the fuse. You will also have to replace the glow plug module/relay which is loacted under the battery shelf under the hood. Be very careful when trying to remove the glow plugs. Only attempt with a fully warm engine ( drive it for 30 minutes first ). Do not try to force them to turn, they will break.You have a problem in the glow plug system. You will need to test for a shorted glow plug by making a test harness with a 15 amp fuse in it and applying 12 volts to each glow plug to see which blows the fuse. You will also have to replace the glow plug module/relay which is loacted under the battery shelf under the hood. Be very careful when trying to remove the glow plugs. Only attempt with a fully warm engine ( drive it for 30 minutes first ). Do not try to force them to turn, they will break.
It's actually a module and its called a GPCM (glow plug control module) On every 6.0L its on the front of the right valve cover. It has a big green and black connectors you can't miss it!! Powerstroke57
to stop glow plug circuit from over heating, you need to replace the glow plug control module these modules cycle on and off at a given time interval these are also not expensive and are easy to change
Number three is the rear passenger side.
bad glow plugs or faulty glow plug timer module