<div class='quotetop'>QUOTE(Turborado &#064; Mar 9 2006, 02&#58;49 PM) [snapback]46544[/snapback]</div>
In my experience dex-cool tends to evaporate or dry up from engine heat before hitting the ground with a slow leak. the best way to find it is with a pressure tester and let it sit for about an hour or until you can see it dripping. I have seen a slow leaking intake manifold cause this problem a lot, but more before the gen 3 motors. I doubt it is your heads. i would say intake gasket or possibly water pump. see if you can get under the vehicle and see dried up coolant on back of motor.
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FWIW, there is no coolant passage in the intake manifold so count that one out. The only place there is coolant in the intake is in the throttle body if you haven&#39;t done the TB bypass yet.