Heater Hose Coupling: Disconnect: Connect

WARNING: This page is about a different car, the 2002 Ford Windstar. However, it is still accessible from the selected car via links, so may be relevant.

Clean the tubes and lubricate with MERPOL® 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 New Coupling Retainer, Spacer And Lubricated O-Ring Seals 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 With Quick Disconnect Coupling Onto Tube
Courtesy of FORD MOTOR CO.
Make sure the coupling is fully engaged by lightly pulling on the heater water hose.