# Stiff brake pedal

**URL:** <https://forums.speedlife.net/t/stiff-brake-pedal/145863>\
**Category:** Canada Nissan Automotive\
**Created:** [February 14, 2007, 6:38pm UTC](https://forums.speedlife.net/t/stiff-brake-pedal/145863 "2007-02-14T18:38:35Z")\
**Posts on this page:** 7\
**Page:** 1

<div class="post-metadata">

**Author:** ![kouki240](https://avatars.discourse-cdn.com/v4/letter/k/8dc957/32.png) [@kouki240](https://forums.speedlife.net/u/kouki240)\
**Post date:** [February 14, 2007, 6:38pm UTC](https://forums.speedlife.net/t/stiff-brake-pedal/145863/1 "2007-02-14T18:38:35Z")

</div>

89 240sx - the brake pedal has suddenly become extremely stiff. Brake fluid is fine so I’m assuming its the brake booster. Any other culprits that could cause this?

---

<div class="post-metadata">

**Author:** ![Nis240](https://avatars.discourse-cdn.com/v4/letter/n/a9a28c/32.png) [@Nis240](https://forums.speedlife.net/u/Nis240)\
**Post date:** [February 14, 2007, 7:03pm UTC](https://forums.speedlife.net/t/stiff-brake-pedal/145863/2 "2007-02-14T19:03:05Z")

</div>

Chech the vacuum line for cracks, then suspect the booster.

I have a Z32 Booster if u need.

---

<div class="post-metadata">

**Author:** ![Garret\_Volden](https://avatars.discourse-cdn.com/v4/letter/g/f475e1/32.png) [@Garret\_Volden](https://forums.speedlife.net/u/Garret_Volden)\
**Post date:** [February 14, 2007, 7:25pm UTC](https://forums.speedlife.net/t/stiff-brake-pedal/145863/3 "2007-02-14T19:25:27Z")

</div>

wouldnt the filter behind the brake pedal for the atmospheric pressure also do this?

---

<div class="post-metadata">

**Author:** ![CA18DET-180SX](https://avatars.discourse-cdn.com/v4/letter/c/e0b2c6/32.png) [@CA18DET-180SX](https://forums.speedlife.net/u/CA18DET-180SX)\
**Post date:** [February 14, 2007, 8:48pm UTC](https://forums.speedlife.net/t/stiff-brake-pedal/145863/4 "2007-02-14T20:48:06Z")

</div>

> [@Garret\_Volden](#):
>
> wouldnt the filter behind the brake pedal for the atmospheric pressure also do this?

I’m gonna agree with Nis240, odds are pretty good the filter on the booster won’t get that plugged

---

<div class="post-metadata">

**Author:** ![AnTi\_RiCeR](https://avatars.discourse-cdn.com/v4/letter/a/c68b51/32.png) [@AnTi\_RiCeR](https://forums.speedlife.net/u/AnTi_RiCeR)\
**Post date:** [February 14, 2007, 9:44pm UTC](https://forums.speedlife.net/t/stiff-brake-pedal/145863/5 "2007-02-14T21:44:01Z")

</div>

actually, stiff brake booster would be the brake booster. it must have a leak. check the seal that mounts the booster to the fluid resivior. Use water in a cup while the car is running and check for small leaks. It makes a HUGE difference. This once happend to me.

hope this help!

-Ryan

---

<div class="post-metadata">

**Author:** ![kouki240](https://avatars.discourse-cdn.com/v4/letter/k/8dc957/32.png) [@kouki240](https://forums.speedlife.net/u/kouki240)\
**Post date:** [February 15, 2007, 2:07pm UTC](https://forums.speedlife.net/t/stiff-brake-pedal/145863/6 "2007-02-15T14:07:01Z")

</div>

Figured it out. Just a bad line to the booster :oops:

---

<div class="post-metadata">

**Author:** ![Garret\_Volden](https://avatars.discourse-cdn.com/v4/letter/g/f475e1/32.png) [@Garret\_Volden](https://forums.speedlife.net/u/Garret_Volden)\
**Post date:** [February 15, 2007, 4:38pm UTC](https://forums.speedlife.net/t/stiff-brake-pedal/145863/7 "2007-02-15T16:38:24Z")

</div>

> [@CA18DET-180SX](#):
>
> [quote=Garret\_Volden]wouldnt the filter behind the brake pedal for the atmospheric pressure also do this?

I’m gonna agree with Nis240, odds are pretty good the filter on the booster won’t get that plugged[/quote]

as long as u keep ur shit clean :lol: