Having problems with your Dodge Ram Pickup 3500 ?

1992 MALLARD SPORT RV ON OSKOSH CHASSIS - Dodge 360 Front brakes come on by themselves, bleed them, problem continues sometimes in 2 blocks, sometimes in 5-100 miles. Replaced front calipers, pads and rotors. Think I need proportioning valve. Have listed Model Ram Pickup 3500, any suggestion appreciated WHERE CAN ONE FIND ONE, AM IN WESTERN CANADA. Thanks Bill

Posted / edited by AnonymousUser on : 11-12-2017

Answers :

That sounds to me like a problem with the power brake booster unit or the master cylinder, the wrong master cylinder could be installed, and this could happen if the plunger rod from the vacuum booster unit is too long for the opening on the rear of the master cylinder, that is why any time that a master cylinder is replaced to be certain that the depth of the plunger valve in the rear of the master cylinder is the same as the original part that was removed. Also the brake booster itself could be malfunctioning and activating the brakes with just the engine vacuum.
Repair Help & Product Troubleshooting for Dodge Ram Pickup 3500

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