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  1. TylerG

    1998 5.7 Vortec lower intake manifold leaking coolant after the gaskets were replaced.

    I’ve got the same problem on my 98 5.7 vortec. I just rebuilt the engine 12 months ago and installed the Fel-pro lower inlet manifold gasket. My machinist checked the intake manifold for cracks and flatness. I closely followed the three step torque procedure with loc-tite on the threads. I...
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