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The 1998 GMC signal flasher relay switch will be behind the drivers side dashboard. The signal flasher relay switch will be on the left-hand side of the gas pedal.

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2014-10-07 01:39:33
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Q: Where is the signal flasher on a 1998 GMC sierra?
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Related questions

What is the relay behind glovebox in 1998 gmc jimmy slt?

Most likely the turn signal flasher.

Why would the right turn signal remain lit and not flash on a 1996 GMC sierra?

If the bulbs check good, replace the flasher relay.

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how do you change ash tray light bulb in a 1998 GMC Sierra 1500

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