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Where would a 1990 Supra Turbo coolant loss come from if its not dripping and has new head gasket?
Wiki User
∙ 11y ago
Mostly a guessing game. Was the head gasket installed by a professional shop or private individual? If by shop, normally, they would have checked the cylinder walls for cracks through which the coolant can enter the cylinder and combust with the fuel/air mixture and exit through the exhaust system. In that case the car will produce a sweet smelling white smoke from the exhaust. If you can, have the cooling system pressure tested. Once up to peak operating pressure the gage should stay for a few minutes at that peak psi. If it drops, then it is pushing coolant out of the cooling system, then its a matter of finding the whereabouts of the exiting coolant. Check the oil and make sure the coolant is not mixing with the engine oil, if it does the oil will be thick and brown, resembling mud.
Wiki User
∙ 11y ago
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If you are loosing coolant, you have a leaking head gasket. If you are loosing oil and have a turbo, the seal on the turbo is bad. either intake manifold gasket or head gasket is leaking
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factory bolt spec is 58 i believe this is the cause of the blown head gasket issue with the cars it needs torqued at least to 70
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