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Re: Hard brake pedal feel (archive)

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Posted by john on June 29, 2001 at 15:14:43:

In Reply to: Re: Hard brake pedal feel posted by mikeS on June 29, 2001 at 13:36:37:

do you mean the little one-way valve in-line in the vacuum hose? I hope not. I have the same symptoms (I've learned to just live with it). And that little valve is fine.

You didn't damage the unit by installing dual 40's. Also, if the vacuum unit is leaking, your car will run like complete crap--especially with sidedrafts, because the vacuum port affects only one cylinder. It sounds like the vacuum unit control valve is stuck.

Mike


I haven't been driving my '02 for a while (just replaced the head gasket) and now I have a hard feeling at the brake pedal. It feels as if the power assist isn't working. If I start the car, the brake pedal does not get easier to push. The vacuum hose is hooked up to the manifold, and if I disconnect it from the assist I can feel that it is sucking like nobody's business.

Is there anything I should check before I replace the vacuum assist unit? I recently put dual 40's on and am wondering if that caused more vacuum and could have damaged the unit.






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