Question

Chevrolet 2500HD with code P0674. How do I fix the code?

Answer 1

P0674 DODGE - Cylinder 4 Glow Plug Circuit Fault

Symptoms

- Engine Light ON (or Service Engine Soon Warning Light)
- Lack/Loss of Power
- The engine may be harder to start
- Engine hesitation

 

Possible causes

- Cylinder #4 glow plug circuit is open or shorted
- Faulty cylinder #4 glow plug
- Faulty glow plug module

 

P0674 DODGE Description

The Engine Control Module (ECM) has detected a fault in the cylinder #4 glow plug circuit  

 

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