# Turn signal

**URL:** <https://community.cartalk.com/t/turn-signal/40993>\
**Category:** Maintenance/Repairs\
**Tags:** chevrolet, noises, blazer\
**Created:** [December 19, 2009, 9:11pm UTC](https://community.cartalk.com/t/turn-signal/40993 "2009-12-19T21:11:02Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![radarray](https://avatars.discourse-cdn.com/v4/letter/r/858c86/32.png) [@radarray](https://community.cartalk.com/u/radarray)\
**Post date:** [December 19, 2009, 9:11pm UTC](https://community.cartalk.com/t/turn-signal/40993/1 "2009-12-19T21:11:02Z")

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I have 98 Blazer which the turn siganl relay is clicking when not using the signal. It will do it for a few minutes then quit, but then randomly start up again. If the brake pedal is used the clicking will stop. I have replaced it once and it still does it.  
  
 Also my driver door power window has on two occassions quit working then a few seconds later work, would this be an early warning the power unit is about to stop working? Thanks.

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**Author:** ![edb1961](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/edb1961/32/122_2.png) [@edb1961](https://community.cartalk.com/u/edb1961)\
**Post date:** [December 20, 2009, 12:28am UTC](https://community.cartalk.com/t/turn-signal/40993/2 "2009-12-20T00:28:15Z")

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Did you replace the relay/flasher or the turn signal switch? The clicking is due to the multifunction switch (turn signal, wipers, cruise, etc). It’s a known problem with GMs of this vintage. Try spraying some CRC Electrical Contact Cleaner into the base of the switch at the steering column to clean the contacts. I ended up having to replace the multifunction switch on my Blazer. The part was ~$200 and I installed the part. There’s probably a couple of hours of labor involved, ~$500 total would be my guess for the repair.

The NHSTA web site has directions under the Documents link in the Recall database section. Do a search on 2000 Blazer.

[http://www](http://www)…search.cfm

Ed B.

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**Author:** ![radarray](https://avatars.discourse-cdn.com/v4/letter/r/858c86/32.png) [@radarray](https://community.cartalk.com/u/radarray)\
**Post date:** [December 20, 2009, 1:21am UTC](https://community.cartalk.com/t/turn-signal/40993/3 "2009-12-20T01:21:38Z")

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It was the relay/flasher replaced. I will try the CRC Electrical Contact Cleaner on the area you said. Thanks alot for the information and web site info.
