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.
If the bulbs check good, replace the flasher relay.
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.
it is located under the dash behind the knee bolster to the left of the cigarette lighter.
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.
under the dash on driver side below steering wheel
under you radio and behind the ash tray....u have two flashers ..one for the blinkers and the other for the signal lite
The gap for spark plugs in a 96 GMC sierra is .60
If it's the same as a 2000, it is on the back of the fuse block which is behind a triangular panel in the driver side of the dash when you open the driver door.
The standard speaker size on a 1996 GMC Sierra truck is 9 inches. Larger speakers can be added but required the opening to be enlarged.
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Behind the fuse panel in the driver's side dash.