1991 Mitsubishi Montero bleeder valve

Tiny
PJANET
  • MEMBER
  • 1991 MITSUBISHI MONTERO
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 240 MILES
I have a new engine and have installed a new radiator, does the air need to be bled from the vehicle after radiator instalitation?
Monday, October 26th, 2009 AT 4:51 PM

1 Reply

Tiny
SERVICE WRITER
  • MECHANIC
  • 9,123 POSTS
I'm not aware of any special bleed procedures. Fill the system with 50/50 coolant. Keep the cap off. Add the coolant mix as needed to keep it full. (There are special funnel arrangements to do this, but I wouldn't bother for one fill.)
Squeeze the top hose a few times to burp any air out that is setting in the system.

When it seems like it doesn't want to take anymore or starts flowing back out, put the cap on and watch the temp gauge. Bring it to operating temperature or when the cooling fans kick on and rev it a few times to circulate the coolant a little stronger. Nothing crazy, just a few revs. PAy atenention to the temperature gauge. IF you hit anything above 3/4 or more to the red zone, kill the engine. Don't expect this to happen but be aware.

IF you are getting good heat, take it for a jaunt around the block and then shut it off and let it cool to ambient temperature.

Recheck and adjust the level.

Go crack a beer.
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Monday, October 26th, 2009 AT 5:44 PM

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