Glow Plug Control Module Circuit
The POWERSTROKE-P0670 (Power Stroke) diesel fault code means: Glow Plug Control Module Circuit. This is a moderate severity code.
- Keep driving?
- Yes, but fix soon
- DIY difficulty
- intermediate
- Estimated cost
- $150-$500
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Common Symptoms
- Hard cold start
Probable Causes (Ranked by Likelihood)
- Failed GPCM Likely
Step-by-Step Diagnostic Procedure
Test GPCM.
Replace.
Frequently Asked Questions
What is P0670 on a 6.0L Power Stroke?
P0670 on a 6.0L Power Stroke (2003-2007) indicates: Glow Plug Control Module Circuit. This is a known diagnostic trouble code on this engine family and typically points to the causes listed above.
Can I drive with P0670 on my Power Stroke?
Yes, you can generally drive with this code, but diagnose it soon to prevent further damage.
How much does it cost to fix P0670?
Repair cost is typically $150-$500 depending on the underlying cause and whether you DIY or use a shop. Diagnostic time alone runs $100-$180 at most independent diesel shops.
P0670 on Other Platforms
The same code ID appears across other engines, vehicles, and equipment. Diagnostic flow varies by platform — see the matching breakdown: