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Truck overheatin

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Ok 2000 2500 with5.7 gas water pump busted and leaking , replaced pump, thermostat , belt, top hose, after truck sits about 5 min gauge starts rising in about 10 min gauge pegs and truck overheats water boils back into reservoir, top hose is soft to touch , I cycled truck on and off several time and top tank off I feel no air is in system , this is pressure system with no radiator cap , I'm stump!!!!!!!

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Things to check.

1, as MORSNO , Sdeeter said, air in system

2, Old Dexcool scale clogging the block and radiator ( pressure flush block and radiator)

3, a 160 thermostat ( jegs or summit has 'em)

4, Do NOT take offense to this.. Make CERTAIN your serpentine belt is on correctly. Some set ups allow you to install it wrong, pump runs backwards, and engine starts and overheats...

Good [email protected]!

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