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Old 05-03-2007, 08:31 PM
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Turn signal switch problem?

The neighbor has a 89 chevy p/u and he had no tail lights,turnsignals or brake lights so I checked the fuses and three were blown. It did not take long for the stop light fuse to blow again and we noticed when the left turn signal is on the right is blinking too but when the right is on only the right is blinking,when the left is on the volt gauge is moving quite a bit with the flashing of the lights so something is going on. Could the turn signal switch be going bad?. Jeff

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Old 05-04-2007, 12:59 AM
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Doc here,

Sounds like either the plug at the bottom of the steering column is Shorting across the BL and TS circuits, Or the switch is going out and hitting a ground.

Pull the plug, Clean, burnish and inspect all the pins. Look for bent or overheated pins, make sure both plugs are good, refuse and try it again. If you blow a fuse, you'll have to pull the wheel (or horn ring) and inspect the switch.

If your getting 2 or 4 way flasher action on turnsignal, this is a short between the TS system, and the Brake lamp system..in addition to that, you may have a short to ground (when the fuse finally blows) Or the total lamp load MAY exceed the rating of the fuse.

Most likely you'll find the problem in the switch.

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