How do I flush the radiator?

Asked by Jan 06, 2007 at 11:56 PM about the 1999 Chevrolet Suburban K1500 LT 4WD

Question type: Maintenance & Repair

I need to flush the radiator on my 1999 Suburban and do not have a clue.  Any help would be appreciated.  Thanks

2 Answers


Hello marty973-- I have two good links for you. One says that you shouldn't flush. You should drain and refill. The other says that a good flush is good for your cooling system. Try and then take a look at,14899,auto_714_0,00.html. Have fun doing it. Good luck from Bovan.

3 of 3 people found this helpful.

Get it flushed. You will have to remove the thermic valve under engine hose pipe connctor and keep tab water hose in radiator for at least 15 min at high speed.

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