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Car Forum / Driving, Maintenance, Tuning / Maintenance and Repair / January 2006Low coolant light
I had the low coolant level light come on in my car about two weeks ago. I was close to home so I just drove it home. When I got there, the surge tank was empty, so I filled it with a bottle of 50/50 I had in my trunk. Then I noticed there was a pretty decent leak coming from the heater inlet hose. I tried to change the heater inlet hose, but it turned out that the plastic (!) pipe that was the inlet of the heater core was the part leaking, not the hose. So, I replaced the heater core and now the system is full and there are no leaks...... BUT THE LOW COOLANT LIGHT IS STILL ON!! What's going on? Thanks! > I had the low coolant level light come on in my car about two weeks ago. > I was close to home so I just drove it home. [quoted text clipped - 15 lines] > > Thanks! Are you saying the overflow tank is full and the light is on? Not clear. If so then you have a problem with the coolant level sensor circuit. Otherwise, you may not have flushed out the bubbles and airpockets - fill it up once more and track the level closely. If it goes down again, you probably have another leak to chase down. > I had the low coolant level light come on in my car about two weeks ago. > I was close to home so I just drove it home. [quoted text clipped - 15 lines] > > Thanks! Your 1992 Pontiac Grand Am has a float sensor in the overflow tank. Sometimes it sticks. Give it a whack. > I had the low coolant level light come on in my car about two weeks ago. > I was close to home so I just drove it home. [quoted text clipped - 15 lines] > > Thanks! It's a 98 Grand Am, sorry that I failed to mention that. The overflow tank is full and the light is on. When I unplug the sensor electrical connector on the surge tank, the light obviously stays off. I'll try the "give it a whack" method and see if that helps. I suppose it is a stuck or otherwise malfunctioning sensor. Thanks. > When I unplug the sensor electrical connector on the surge tank, the > light obviously stays off. Try to clean this sensor, it's locked by dirt etc. in the on position. Regards, Ralf  Signaturewww.omnibusclub.de Erfinder des Abgasturboladers Dr. Alfred J. Büchi: "Die Abgase, deren noch inne-wohnende Energie bis dahin vergeudet wurde ..." > I had the low coolant level light come on in my car about two weeks ago. > I was close to home so I just drove it home. [quoted text clipped - 15 lines] > > Thanks! Looks like the "whack" did it!! |
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