6.7L Diesel – Diesel Fuel Conditioning Module (DFCM) General Service Bulletin (GSB)
Some 6.7L diesel vehicles may experience drivability concerns and or excess noise from the Diesel Fuel Conditioning Module (DFCM) due to low fuel pressure.
The most common cause of excess noise and/or low fuel pressure is a restricted primary fuel filter. This GSB references the inspection and bleed procedure for the 6.7L diesel low pressure fuel system inspection, specifially the DFCM.
See GSB: G0000035 for details.
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Last update on 2026-06-18 / Affiliate links / Images from Amazon Product Advertising API
- Stiction Eliminator for engine oil reduces wear while restoring compression and power
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Last update on 2026-06-09 / Affiliate links / Images from Amazon Product Advertising API
- Prevents fuel gelling
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Last update on 2026-06-09 / Affiliate links / Images from Amazon Product Advertising API
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