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Old 04-07-2021, 09:03 PM #1
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Weird brake issue, 3rd gen

A couple of weeks ago, while backing up in my 3rd gen, I notice the brake pedal had a significant amount of resistance, while lacking stopping power. It went away, but resurfaced now in both reverse and drive. Checked fluid levels and all are in normal operating range. When applying pressure to brakes, there is a significant amount of resistance, followed by a gradual release of the backpressure, then the brakes finally begin to apply.

Checked vacuum hose to brake booster and found no apparent leaks. Is the brake booster suspect, or should I be looking elsewhere? It's a 97 limited 4WD with 270k miles. Thanks in advance for any sage advice.
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Old 04-08-2021, 06:48 AM #2
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I don't have any personal experience with this issue but I have tried to chase down other brake issues in the past and its very aggravating.

This thread may get you started...

Brake pedal hard to push down
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Old 04-08-2021, 08:13 AM #3
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Sounds like the brake booster check valve. I had the same thing happen to me and it was the check valve. 5 minute repair and 20ish bucks for the part.
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Old 04-08-2021, 12:50 PM #4
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Quote:
Originally Posted by thegipper View Post
Sounds like the brake booster check valve. I had the same thing happen to me and it was the check valve. 5 minute repair and 20ish bucks for the part.
This...
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Old 04-08-2021, 02:07 PM #5
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Quote:
Originally Posted by Vansnxtweek View Post
I don't have any personal experience with this issue but I have tried to chase down other brake issues in the past and its very aggravating.
Very true for me too. I have done a lot to chase the low brake pedal issue and it is still low lol.
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Old 04-08-2021, 02:22 PM #6
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Quote:
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...I have done a lot to chase the low brake pedal issue and it is still low lol.

I believe that is a Feature of this trucks! All vehicles are different, especially these, haha.

Mine always has been 'low', yet if depressed enough it will grab on enough to actuate the antilock system, so i know it works as intended.
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