1990 Pontiac Grand Prix COOLING FANS

Tiny
MAKSYM.BUKHAR
  • MEMBER
  • 1990 PONTIAC GRAND PRIX
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 75,000 MILES
HELLO!

i WOULD LIKE TO KNOW HOW TO FLUSH COOLING SYSTEM.
THANK YOU
Monday, August 3rd, 2009 AT 9:57 AM

1 Reply

Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
Remove the lower radiator hose and drain coolant. Reconnect it and fill with water or radiator flush.

Start engine and let it get to operating temp, stop engine let it cool for an hour. Disconnect lower hose, drain water, refill with coolant.

You can also remove the block drain plugs, run a hose in radiator and flush system and let it drain out the block plugs.
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Tuesday, August 4th, 2009 AT 12:16 PM

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