Coolant issues, no heat, upper hose gets hot but lower stays cool

[bent]

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for the next person, park the truck with the nose up hill, remove the hose from the head to head crossover tube and keep pour coolant into the engine through the upper radiator hose until you get a steady stream of fluid out of the crossover tube coming from the engine.

this worked very good for me just cranked my lq4 this past sunday and brought it up to operating temp. in a 92 z71thanks again.