Ford 4L3Z-8260-DA
Upper Hose

You must detach the intake manifold before servicing the coolant crossover manifold assembly that powers the 5.4L (3V) engine. Start by disconnecting the bolts that maintain the coolant crossover manifold assembly then extract the assembly itself while you should tighten the bolts to 10 Nm (89 inch lbs.) during reinstallation. Examine the gaskets and replace them with fresh components if necessary. The cleaning process for gasket mating surfaces requires metal surface prep that must be followed according to the packaging instructions. Reinstall the components through the reversed steps used for removal.

The service process for the coolant crossover manifold assembly of the 5.4L (3V) engine requires intake manifold removal as the first step. First you should remove all the bolts securing the coolant crossover manifold assembly before taking out the assembly itself while you should tighten the new assembly to 10 Nm (89 lb-in) after assembly. The inspection of gaskets occurs at this time with a requirement to use new gaskets if old ones are detected. The cleaning process for gasket mating surfaces requires metal surface prep which must be done according to the packaging instructions. Reinstall the components after performing the reverse steps of removal.