Brake Disc Pads Problems of Mercury Mariner

When using the brakes there's a loss of about half of the brake pedal, and most likely the abs system. The part retails for $1,747. 32. The problem from talking to mechanics and searching is apparently sticking valve(s) which in turn makes the brake fluid by-pass half of the system. In other words you only have the use of part of the brake system. Our car has 170k miles but that's ~ 90% highway miles, we bought it ~6yrs ago with 15k miles, which means the brakes don't get that much use. The rear shoes were just replaced for the 1st time @ 170k and the front pads have been done once. Ford cares so much about the lives of people driving their cars that they continue to sell the same part (modulator valve - Ford (9l8z-2c346-c)) without any engineering changes/updates, even though this is a common problem across car lines and even trucks. They have issued a recall, #19s54 for select 2006-10 Ford fusion, Mercury milan and Lincoln mkz vehicles that exhibit the same issue, "a normally closed valve inside the hydraulic control unit may stick open, which could result in extended brake pedal travel, potentially increasing the risk of a crash. ". An interesting point in the recall is this: "the system will be pressure-flushed with dot 4 brake fluid and the dot 3 reservoir cap will be replaced with a new dot 4 cap. " our vehicle has a dot3 cap, is dot3 what causes the problem with "stuck or slow-responding valves" per recall, and dot4 keeps valves from sticking or becoming slow acting because of the viscosity difference between the 2? from amsoil "dot 3 is the most common type used in cars and trucks today. Dot 4, however, is gaining popularity due to widespread use of anti-lock braking systems and traction control, which benefit from dot 4 fluid?s lower viscosity. " this: "as of 2006, most cars produced in the u. S. Use dot 4 brake fluid. " except for Ford apparently.

See all problems of the 2009 Mercury Mariner 🔎.

Took vehicle to Ford dealer to have car inspected was told rotors had to be replaced due to wear brake pads were wearing un evenly car has been serviced by dealer when ever it needed inspection or oil changes uneven wear wasn't seen until warranty had run out the car had lest then 2000 miles on since last inspection. This has happened on other Ford vehicles in past pins that brake pads ride on have always been the cause. They are corroded.

See all problems of the 2008 Mercury Mariner 🔎.

In December of 2009 I reported an incidence of unintended acceleration. Since then we have not been using the cruise control much. Yesterday I activated the cruise control at 60mph on a long flat area. There is a mountain pass and curves between that area and our home. I hit the brake and slowed down around the 35 mph curves. On the down grade I took it out of over drive and dropped down a gear. The road flattens out again at the bottom but I did not reengage the cruise control. At one point at an intersection I had to brake to ten miles per hour or less for an oncoming car. Just after making a left turn onto our street the car began rapidly accelerating on its own. I didn't have my foot on the gas pedal. Since the road is straight I allowed it to accelerate to see what it would do. It went from 10 mph to 50 mph before my wife asked, "why are you accelerating? I replied, " I'm not. It's doing it on its own. " it disengaged as soon as I hit the brake pedal. There is no way this was caused by a floor mat. I was only going about 10mph when it began accelerating and I took my foot off the pedal. The last time I complained to Ford the car was under warranty and had less than 36,000 miles on it. Ford said they couldn't do anything about it since it was intermittent and they hadn't experienced the problem. Another safety problem we have had with the car: when it had 26,000 miles on it the front end began shaking when braking. Ford said the front rotors were warped and resurfaced them under the warranty. They refused to change the pads or install new rotors. About 15,000 miles later it began vibrating again at speeds above 50mph. Now the vibration is severe. We are looking at a complete brake overhaul. We have never detected the brakes being overheated while the car was being driven. Another problem we had was that the trans cooler went out at 26,000 miles. Ford installed a new one under warranty but refused to drain and replace the transmission fluid.