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What is your question?
I have a 2009 gmc sierra 2500 I have a question about the abs module pump does rmc and fmc mean to rear master cylinder and front master cylinder ports
1 Reply
Hi - Dave here, contributing to RepairPal and providing expert advice since 2010. Sounds logical; the workshop manual does not address. The best thing to do would be to replace the component by swapping the known positions from the old component to the same for the new one. https://repairpal.com/auto-repair-near-me Click the link to find some shops near you who can help out!