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The turn signal flasher on a 2002 GMC Savanna van is behind the left IP fuse box. This is also the location for the hazard flasher.
The cause for a turn signal flasher to keep clicking on a 1999 GMC Jimmy is a bad flasher unit. Replacing this with a new flasher unit should solve this problem.
Check the 2005 GMC Envoys turn signal flasher. The flasher could have an intermittent issue causing the signals to not work.
the turn signal flasher is under the dash panel below the radio,must remove lower hush panel and center panel.gmjim
Most likely the turn signal flasher.
Underneath Driver side dash kick panel
push warning flasher on for ten seconds turn off. my van will do it once in awhile and it works. gmc has a recall on this problem.
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.
it is located under the dash behind the knee bolster to the left of the cigarette lighter.
If the bulbs check good, replace the flasher relay.
there are two flasher boxes under the steering columb to the right change the flasher it should be a two prong silver canister any auto parts store it's called a flasher
under you radio and behind the ash tray....u have two flashers ..one for the blinkers and the other for the signal lite