# Blazer Dizzy Failure: Common?

**URL:** <https://forums.speedlife.net/t/blazer-dizzy-failure-common/60427>\
**Category:** NYSpeed Automotive\
**Created:** [December 29, 2008, 9:25am UTC](https://forums.speedlife.net/t/blazer-dizzy-failure-common/60427 "2008-12-29T09:25:21Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![travisn](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/travisn/32/5046_2.png) [@travisn](https://forums.speedlife.net/u/travisn)\
**Post date:** [December 29, 2008, 9:25am UTC](https://forums.speedlife.net/t/blazer-dizzy-failure-common/60427/1 "2008-12-29T09:25:21Z")

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My buddy has a 99 blazer with the 4.3 in it, and every few months he has to get a new dist cap. ive heard its because of condensation ruins the contacts. is there a permanent fix to this?

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**Author:** ![Freek](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/freek/32/7357_2.png) [@Freek](https://forums.speedlife.net/u/Freek)\
**Post date:** [December 29, 2008, 9:27am UTC](https://forums.speedlife.net/t/blazer-dizzy-failure-common/60427/2 "2008-12-29T09:27:03Z")

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silicone spray.

a good helping of silicone spray before it’s put back together will help

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**Author:** ![BDR5oh](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/bdr5oh/32/7315_2.png) [@BDR5oh](https://forums.speedlife.net/u/BDR5oh)\
**Post date:** [December 29, 2008, 9:33am UTC](https://forums.speedlife.net/t/blazer-dizzy-failure-common/60427/3 "2008-12-29T09:33:54Z")

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Very common on those trucks … your better of getting a complete new dizzy … they are supposed to vent themselfs through the housing to eliminate the problem

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**Author:** ![halas](https://avatars.discourse-cdn.com/v4/letter/h/898d66/32.png) [@halas](https://forums.speedlife.net/u/halas)\
**Post date:** [December 29, 2008, 9:46am UTC](https://forums.speedlife.net/t/blazer-dizzy-failure-common/60427/4 "2008-12-29T09:46:36Z")

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for shits and giggles I would try drilling two very small pin holes on the side of the cap below the rotor “plane of rotation”. Have the holes oppose each other (across from each other.) This easy trick may help, or make it worse. If not new dist as mentioned.

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**Author:** ![travisn](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/travisn/32/5046_2.png) [@travisn](https://forums.speedlife.net/u/travisn)\
**Post date:** [December 29, 2008, 10:09am UTC](https://forums.speedlife.net/t/blazer-dizzy-failure-common/60427/5 "2008-12-29T10:09:36Z")

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so a new dizzy will solve the problem because they were re designed?

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**Author:** ![97FormulaWS-6](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/97formulaws-6/32/7384_2.png) [@97FormulaWS-6](https://forums.speedlife.net/u/97FormulaWS-6)\
**Post date:** [December 29, 2008, 10:11am UTC](https://forums.speedlife.net/t/blazer-dizzy-failure-common/60427/6 "2008-12-29T10:11:27Z")

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Strange… I’ve got a 98 with the 4.3 and have put 1 cap on it when i did a tune up…

Did he break the screws that hold the cap on and it’s getting screwed up that way? The tabs that the screws thread into are VERY easy to break off; I can see that causing the contacts to get screwed up…

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**Author:** ![Shrek](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/shrek/32/7364_2.png) [@Shrek](https://forums.speedlife.net/u/Shrek)\
**Post date:** [December 29, 2008, 10:59am UTC](https://forums.speedlife.net/t/blazer-dizzy-failure-common/60427/7 "2008-12-29T10:59:36Z")

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I had one that kept cracking… sucked