Rick's Free Auto Repair Advice

Posts Tagged: Mercury Villager

Brakes lock up – Nissan Mercury

How to fix brake lock up – Nissan Mercury Shops are reporting brake lock-up problems on the Nissan Quest and Mercury Villager with ABS brakes (up to the 2002 model year). The problem is caused by contaminated brake fluid blocking the ABS valves, especially the dampener valve. The dampener valve is screwed into one of the outlet ports on the master cylinder. The left front and right rear brakes line is attached to this valve. When these valves get plugged, they don’t release brake pedal pressure. Before you perform the … Read More

P0400 – Ford Mercury Vehicles

Fix trouble code P0400 – Ford Mercury Vehicles A P0400 code indicates insufficient EGR flow. This could be caused by several things: restricted or carboned up passages, sticking pintle on EGR valve, or a problem with the vacuum supply to the EGR sensors. The computer commands EGR operation and the Backpressure Transducer measures the pressure (or lack of it) to determine how well the EGR valve did in allowing EGR flow. The Transducer has several hoses going to it and this seems to be a common failure point in getting … Read More


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