Rick's Free Auto Repair Advice

Posts Tagged: Ford Escape P0401 P0402

P0401 P0402 Ford Escape

Fix code P0401 P0402 Ford Escape Owners report repeat P0401 and P0402 codes from the differential pressure feedback EGR sensor (DPFE). If you’ve already checked out my DPFE article here, then head right to the muffler. There’s a small drain at the bottom of the muffler to drain off any condensation that accumulates during a cold start. Shops are reporting that the drain can clog and that moisture can damage the DPFE. Open the drain hole and then drill it one size larger. Next, start the vehicle and run it … Read More

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