Question about 1997 Nissan Pickup

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Front calipers As I press on the brakes, the front calipers are not opening to put pressure on the brake pads against the disk. It does have enough brake fluid in the resevoir

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  • Tyler May 11, 2010

    Is brake fluid leaking from any of the brake lines?

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2 Answers

Did find the solution to the problem, brake fluid was not flowing to the calipers master brake cylinder was not functioning had to replace it with a new one. Brakes work fine now. Thank you for your support.

Posted on Oct 28, 2008

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  • 52 Answers

Good morning,
I have several questions that can lead you to a solution.
1) How many miles on the front brake pads sense they have been replaced?
2) How deeply grooved are the front brake rotors?
3) does the front brakes make a scratching or a grinding sound when the brakes are applied?

This is where I'm heading with these questions:

The front brake pads are a biscuit of break friction material applied to a steel plate.
As the braking material wears off the rotor may also wear with grooves and in the case of replacing pads without turning the rotor can present a ledge on the rotor that the plate of the brake pad can come it contact with and restrict the friction material from coming in contact with the rotor and be an effective breaking force.

Also if the pads have been replaced and the piston has become cocked in the caliper it will be jammed in the piston bore and not be free to extend and exert a pinching force on the rotor.

I suspect that if the fluid is not restricted from reaching the caliper there is a mechanical restriction in the system. Not much else to consider but those two things.

Glad to be of assistance - please rate the solution - I can learn from you. Thank you

Posted on Oct 27, 2008

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