Low Coolant Light
Thread Starter
5th Gear
Joined: Jul 2004
Posts: 5
Likes: 0
Low Coolant Light
Low Coolant light comes on from time to time on my 89'. Replaced the water pump and the radiator. Still has liquid in reserve tank and the radiator seems to be full. Any thoughts. This is driving me nuts. 
Melting Slicks
Joined: Mar 2001
Posts: 2,174
Likes: 56
From: Clarence N.Y.
Iam not familiar with a 89 radiator but I had the same problem with my 86 Pace car. On the upper right side of the radiator there is a "level"
sensor that is in the side of the rad. I tapped on mine and the lite has been off since. Hope this helps.
Jimmy
sensor that is in the side of the rad. I tapped on mine and the lite has been off since. Hope this helps.
Jimmy
Burning Brakes
Joined: Jan 2002
Posts: 993
Likes: 4
From: Glen Burnie MD
Originally Posted by vetbil
Low Coolant light comes on from time to time on my 89'. Replaced the water pump and the radiator. Still has liquid in reserve tank and the radiator seems to be full. Any thoughts. This is driving me nuts.
[RICHR]
Le Mans Master
Joined: Jun 2001
Posts: 6,694
Likes: 3
From: Less Talk, More WOT | Houston TX
Try bleeding the system. Open the radiator cap when the engine is off and cool. Start the car, and let it run til it gets past the thermostat opening point (195* on a stock L98) and you should see the coolant level in the radiator drop down as it goes into the block. Then you can open the throttle a bit with one hand, fill the radiator all the way back up, screw on the cap and let the throttle close...this will bleed the air out of the system. You might have to do it 2 or 3 times before you get rid of all the air. This cleared up my low coolant light. Hope this helps 
