Heater Hose Coupling: Connect

WARNING: This page is about a different car, the 2003 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.

Clean the tubes and lubricate with MERPOL(R) meeting Ford specification ESE-M99B144-B or plain water.
Install a new coupling retainer, spacer, and lubricated O-ring seals into the quick disconnect coupling housing.

Fig 1: Installing Coupling Retainer, Spacer, Into Quick Disconnect Coupling Housing
Courtesy of FORD MOTOR CO.
Push the heater water hose with a quick disconnect coupling onto the tube.

Fig 2: Pushing Heater Water Hose
Courtesy of FORD MOTOR CO.
Make sure the coupling is fully engaged by lightly pulling on the heater water hose.