GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
GMC_Truck
🢒
1999
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GMC K Pickup - 4WD
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Body and Accessories
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Waterleaks
🢒 Water Hose Test
Run water through a hose without the nozzle attached.
Begin testing at the base of the window or windshield.
Slowly move the hose upward and across the top of the window.
Have a second person sit in the vehicle in order to watch for leaks.