Radiator Reservoir

Asked by Sep 21, 2017 at 06:43 PM about the 1997 Pontiac Grand Am 4 Dr SE Sedan

Question type: Maintenance & Repair

After I drive my car I turn off the engine and the
radiator resovoir is steaming and it is making a
hissing boiling noise I just drained my radiator and
refilled it with antifreeze and water this is the
second time this has done the this. Any solutions
on how to fix this problem

4 Answers


the cooling system is pressurized. any steam or hissing indicates a leak.

It might have had the wrong ratio or the wrong coolant in it at one time and is seriously clogged...take it to a shop or jiffy lube type place and have it pressure flushed to remove the sludge and oxidation...if that don't work, time for a new radiator. :(

Btw...you might want to be sure you fan is working too!! ;)


how old is the coolant thermostat ? Is the temp. gauge steady after worm up ?

Your Answer

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