What causes 1998 mercury villager front brakes lock up?

Answer 1

I had a problem with a 1999 Villager Front Driver side Dragging, causing a system overheat.

I replaced the Master Cylinder from Auto Zone $32 and change after core return, works great. I still need to bleed the rear brakes but the front no longer drags.

If you would like to check your system from the Master Cylinder here's how.

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1 Set parking brakes and block rear wheels.

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2 Elevate the front end on Jack stands, wheels off the ground.

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3 Set transmission on Neutral, pump brakes several times and release.

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4 Wheels should spin freely by hand. If wheels are free proceed to step 18.

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5 Loosen the brake line on the top forward part of the master cylinder.

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6a If the left front wheel is released. proceed to step 7-9.

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6b If the left front wheel does NOT release, proceed to step 10.

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7 You have just verified that the system is clear from the caliper to Master Cyl.

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8 Replace the Master Cylinder. Bleed system and check for drag on brakes.

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9 If the problem persist you may need to replace the valve on top of Master Cyl.

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10 Tighten brake line on step 5.

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11 Loosen the next fitting down stream towards the front left caliper.

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12 Check the wheel after the fitting is loosened.

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13 If the wheel is not released. Tighten the fitting and repeat step 11-13.

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14 If the wheel is released. proceed to step 15.

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15 Remove and examine the component upstream of the last fitting loosened.

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15a Upstream component between the last fitting and the master cylinder.

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16 Replace component if found to be defective.

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17 Bleed the brake system. Repeat step 1-4

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18 Make sure that brakes are working properly before the wife drives it.

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I hope this helps, Praise the Lord and Thank Jesus if this helps your situation.

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John I.