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The Terminator
Engine/Tuning
Coolant Crossover tube empty
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<blockquote data-quote="oldmodman" data-source="post: 14260662" data-attributes="member: 10303"><p>It sure does sound like you have a nearly invisible hairline crack in the plastic reservoir. That could account for the continuing loss of that amount of coolant. Here is one way to check, if you do not have access to a radiator and cooling system pressure tester. Leave the cap slightly loose so the system will not develop any pressure. Run the car long enough with the hood up while you are watching the level in the tank. You don't want to let it overflow, but you do want it hot enough so that the thermostat is open. After you are sure it is completely warmed up shut it off and let it cool down. If the level in the crossover tube is now still full than you do have a leak that only opens up under pressure. And it's probably the damn plastic tank.</p></blockquote><p></p>
[QUOTE="oldmodman, post: 14260662, member: 10303"] It sure does sound like you have a nearly invisible hairline crack in the plastic reservoir. That could account for the continuing loss of that amount of coolant. Here is one way to check, if you do not have access to a radiator and cooling system pressure tester. Leave the cap slightly loose so the system will not develop any pressure. Run the car long enough with the hood up while you are watching the level in the tank. You don't want to let it overflow, but you do want it hot enough so that the thermostat is open. After you are sure it is completely warmed up shut it off and let it cool down. If the level in the crossover tube is now still full than you do have a leak that only opens up under pressure. And it's probably the damn plastic tank. [/QUOTE]
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Coolant Crossover tube empty
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