# Pressure in Crank Case

**URL:** <https://forums.speedlife.net/t/pressure-in-crank-case/102587>\
**Category:** SON240sx Automotive\
**Created:** [December 20, 2006, 11:19am UTC](https://forums.speedlife.net/t/pressure-in-crank-case/102587 "2006-12-20T11:19:03Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![Chad\_Dugan](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/chad_dugan/32/5576_2.png) [@Chad\_Dugan](https://forums.speedlife.net/u/Chad_Dugan)\
**Post date:** [December 20, 2006, 11:19am UTC](https://forums.speedlife.net/t/pressure-in-crank-case/102587/1 "2006-12-20T11:19:03Z")

</div>

hey guys my problem is at high rpm and on the throttle my dipstick blows out of the stem about an inch because of the built up pressure in my crank case. my pcv valve is intact and working and the o ring on the dipstick is good aswell, what can i do to fix this, i have been told breathers and such but a better idea of how and what to do would help thanks!

---

<div class="post-metadata">

**Author:** ![D\_Fresh](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/d_fresh/32/5542_2.png) [@D\_Fresh](https://forums.speedlife.net/u/D_Fresh)\
**Post date:** [December 20, 2006, 2:12pm UTC](https://forums.speedlife.net/t/pressure-in-crank-case/102587/2 "2006-12-20T14:12:48Z")

</div>

well, in extreme cases leaky piston rings will casue exessive blow-by, usually enough to pop the dip stick out. If nothing else fixes it id run a compression test as a last resort.

---

<div class="post-metadata">

**Author:** ![spd-dmn](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/spd-dmn/32/5513_2.png) [@spd-dmn](https://forums.speedlife.net/u/spd-dmn)\
**Post date:** [December 20, 2006, 3:15pm UTC](https://forums.speedlife.net/t/pressure-in-crank-case/102587/3 "2006-12-20T15:15:12Z")

</div>

stock ka? ka-t?

---

<div class="post-metadata">

**Author:** ![Chad\_Dugan](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/chad_dugan/32/5576_2.png) [@Chad\_Dugan](https://forums.speedlife.net/u/Chad_Dugan)\
**Post date:** [December 20, 2006, 4:08pm UTC](https://forums.speedlife.net/t/pressure-in-crank-case/102587/4 "2006-12-20T16:08:48Z")

</div>

sr20det black top s14

---

<div class="post-metadata">

**Author:** ![spd-dmn](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/spd-dmn/32/5513_2.png) [@spd-dmn](https://forums.speedlife.net/u/spd-dmn)\
**Post date:** [December 20, 2006, 4:35pm UTC](https://forums.speedlife.net/t/pressure-in-crank-case/102587/5 "2006-12-20T16:35:46Z")

</div>

how is your pcv system plumbed