Question about 2003 Chevrolet Trailblazer Ext
All the lights operate but do not flash. right, left, hazards all light up but will not blink.
Sounds like the Relay is faulty. The Blinkers have a bimetalic relay switch that heats up when electric is flowing through it causing the strip to bend and break the circuit. Then as it cools the bi metalic strip straightens and it makes the contact again.
This is the box that makes the clicking noise you hear when the indicator is turned on. Its sounds like you need a new one. May be under the Dash board - or located by the fuses. If you have a manual look for the location of the Flasher relay and replace it. It should pull straight out - small 1.5 inch cube. Go to the parts store and ask if they have one so you know what your looking for and then check all your fuse locations to see if you can find it.
Posted on Aug 15, 2008
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Posted on Jan 02, 2017
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