1991 Chevy Lumina

Tiny
JAYRI _SUPREME
  • MEMBER
  • 1991 CHEVROLET LUMINA
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 140,000 MILES
Why is low coolant light flashing, how do I check coolant
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Sunday, February 22nd, 2009 AT 4:48 PM

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Tiny
BUDDYCRAIGG
  • EXPERT
Wait until the engine is at room tempature

and then remove the radiator cap, fill it up with 50/50 mix of antifreeze and water,

then fill the overflow tank up to the full line.

If you keep loosing antifreeze you need to have that looked into.
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Monday, February 23rd, 2009 AT 1:41 AM
Tiny
LARRYPOKEY
  • MEMBER
Do as suggested by the person before me, then the final step is locate the 2 air release values. One is right on top the thermstat housing the other is the other side of the motor near the water pump. One lets air out of the hearer core the other does the cooling system. Let the motor warm to open the thermostat having already done the manual fill as described above. Then use a small box wrench to let the air out of both of these values. Let a little water squirt out it doesn't hurt. It will be hot now so not too close and not on you. Then retighten the 2 little values and when the car cools it will suck water from the over fill tank to replace the air you let out. You can see how much by premarking the level of that tank with a marksalot, just a little line, then after it cools take a look and the level should be lower by up to 1 inch or so. Hope this helps.
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Sunday, April 26th, 2009 AT 1:07 PM
Tiny
BUDDYCRAIGG
  • EXPERT
LarryPokey
is quite right about the bleed screws, I was thinking your car has a 2.8.

I checked and you have a 3.1, and have the bleed screws.
And very possibly, you may not have a radiator cap.
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Sunday, April 26th, 2009 AT 3:45 PM

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