My 2001 Aurora 4.0 has a plastic fill box which is under pressure and where you add antifreeze. The other day I smelled antifreeze, opened the hood and found a hole the size of a bullet in the back middle of the box and antifreeze was pouring out. I was able to replace the unit and am back in business. I am wondering if I had a defect in the box, or is there some sort of soft plug design to force this to happen if pressure builds up. As you look at the new box, there is no noticeable spot from the top which would indicate some sort of a soft plug, but perhaps it is from inside. Or, was it just a defect in the old box. I would question that, as I have put 92,000 miles on the car since new.

Finally, since that happened, it always says "low coolant", and now suddenly the "check gas cap" alert is also on. I can't reset them permanently. Also, check engine light is on.


Any ideas?





Thanks,





Andy

 

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I ONCE OWNED A 1999 INTRIGUE , AFTER CHANGING A HOSE THE LOW COOLANT LIGHT CAME ON . TO REMEDY THIS I HAD TO BLEED THE SYSTEM. THAT IS ACCOMPLISHED BY FINDING THE BLEEDER VALVE AND LETTING THE AIR OUT OF THE SYSTEM . THE BLEEDER VALVE WAS LOCATED AT THE THERMOSTADT HOUSING. FOLLOW THE UPPER RADIATOR HOSE AND YOU SHOULD BE ABLE TO FIND THE HOUSING. I HAVE NO EXPERIENCE WITH PROBLEMS WITH FILL BOX. TIGHTEN THE GAS CAP AT LEAST 5 CLICKS AND SEE IF THIS HELPS. GOOD LUCK...
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After tightening the gas cap, it may take a few drive cycles for the light to go out.
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thats funny...soft plug. thats a first. no there is no soft plug, high pressure is released via a pressure release inside the radiator cap or for your case the coolant resivoir.


ase master


toyota and lexus certified tech
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