5.3L Vortec Water Pumps

Discussion in 'Chevy Suburban Forum (GMC Yukon XL)' started by IrishBrewer, Sep 16, 2008.

  1. IrishBrewer

    IrishBrewer Rockstar

    I was looking at the hose connections on the water pump for my 2002 Suburban (5.3L) and I noticed that it looks like there are two heater lines entering the pump near the bottom. Are these inlet/outlet lines to the heater? If so, which is which?

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