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Glow Plug Problems

Glow Plug Problems

The Sprinter Platform is known to have a few issues that can cause the glow plugs to set these faults. A Glow Plug Relay Failure, individual glow plugs, the glow plug control unit or any combination of these things can cause the engine light to set.

 

2004 Freightliner Dodge Mercedes Benz Sprinter 2500 glow plug problem P0671 P0672 P0673 P0674 P0675 and P0380 faults relay control fuel rail engine bay diesel side view camper mb cruiser
2004 Freightliner Dodge Mercedes Benz Sprinter 2500 glow plug problem P0671 P0672 P0673 P0674 P0675 and P0380 faults relay exterior side door white emblem camper control

What is a glow plug? Simply put, it is a device that is used during cold weather that starts to quickly heat the combustion chamber to make the diesel fuel easier to combust.

 

2004 Mercedes Benz Sprinter 2500 glow plug problem P0671 P0672 P0673 P0674 P0675 and P0380 faults relay control fuel rail engine bay diesel Bosch new old corrosion stuck drill remove siezed

On this particular sprinter, a glow plug had gone faulty on cylinder number 1. However as they do go bad at about the same time, we recommended replacement of all 5. These plugs are known to have issues seizing inside the head, so we first got the engine hot, and then soaked the plugs in penetrating oil over night in order to help break free any corrosion. The next day, the plugs came out with only minor trouble, no cracked plugs and drilling this time! We then cleaned and chased the threads and put the new glow plugs back in place.

 

2004 Freightliner Dodge Mercedes Benz Sprinter 2500 glow plug problem P0671 P0672 P0673 P0674 P0675 and P0380 faults relay control fuel rail engine bay diesel
2004 Freightliner Dodge Mercedes Benz Sprinter 2500 glow plug problem P0671 P0672 P0673 P0674 P0675 and P0380 faults relay control fuel rail engine bay diesel rear last

With everything back together we cleared and rechecked for faults. The system was all good and this sprinter was ready for some cold weather camping! Having glow plug issues, or need to know why your check engine light is on? Give us a call at 815-230-2900, or contact us through email at blog@fluidmotorunion.com. We’re conveniently located in the Naperville/Plainfield area of the Chicago Metropolitan suburbs.

 

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