# 95 jimmy

**URL:** <https://community.cartalk.com/t/95-jimmy/39542>\
**Category:** Maintenance/Repairs\
**Tags:** jimmy, brakes, gmc\
**Created:** [November 15, 2009, 9:38pm UTC](https://community.cartalk.com/t/95-jimmy/39542 "2009-11-15T21:38:11Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![darkhorse](https://avatars.discourse-cdn.com/v4/letter/d/bbce88/32.png) [@darkhorse](https://community.cartalk.com/u/darkhorse)\
**Post date:** [November 15, 2009, 9:38pm UTC](https://community.cartalk.com/t/95-jimmy/39542/1 "2009-11-15T21:38:11Z")

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i have a 95 jimmy and the brake padel is hard as a rock it like i have no power brakes,would this be caused by the brake booster.thks

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**Author:** ![MG-McAnick](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mg-mcanick/32/188_2.png) [@MG-McAnick](https://community.cartalk.com/u/MG-McAnick)\
**Post date:** [November 15, 2009, 9:48pm UTC](https://community.cartalk.com/t/95-jimmy/39542/2 "2009-11-15T21:48:18Z")

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It is highly likely that you have a large vacuum leak which has caused the power booster to be ineffective. Lift the hood and listen for a HISSSSSS with the engine running.

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**Author:** ![darkhorse](https://avatars.discourse-cdn.com/v4/letter/d/bbce88/32.png) [@darkhorse](https://community.cartalk.com/u/darkhorse)\
**Post date:** [November 15, 2009, 10:54pm UTC](https://community.cartalk.com/t/95-jimmy/39542/3 "2009-11-15T22:54:36Z")

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thanks. i took the vac hose off booster and it seems to have lots of suckin

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**Author:** ![pleasedodgevan2](https://avatars.discourse-cdn.com/v4/letter/p/ad7895/32.png) [@pleasedodgevan2](https://community.cartalk.com/u/pleasedodgevan2)\
**Post date:** [November 15, 2009, 10:58pm UTC](https://community.cartalk.com/t/95-jimmy/39542/4 "2009-11-15T22:58:55Z")

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That isn’t a test. Hard brake pedal is a test. Review the test procedures in the Haynes manual. The brakes failed one test already.

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**Author:** ![darkhorse](https://avatars.discourse-cdn.com/v4/letter/d/bbce88/32.png) [@darkhorse](https://community.cartalk.com/u/darkhorse)\
**Post date:** [November 15, 2009, 11:47pm UTC](https://community.cartalk.com/t/95-jimmy/39542/5 "2009-11-15T23:47:21Z")

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what the manual say to do?thanks