you replace it
Cut off the crimp connectors, pull the old hose off and replace with conventional heater hose and conventional hose clamps
To replace a thermostat on 1998 Silhouette, locate it under the top hose assembly inside the radiator. It is fairly easy to replace with the right tools.
I would simply call my mechanic.
loosen the clamp holding the hose on to a fitting and pull the hose free.
Disconnect the rubber hoses from the heater and the intake. Once the clamp is removed, take a sharp knife and split the rubber ends and peal them off. DO NOT pull on the heater core as you can damage the heater core. Take a hacksaw and cut the band off and replace the heater hose using new clamps.
Replacing the heater hose bypass fitting will depend on how the fitting was installed. It could be screwed or bolted in. Try searching for your specific vehicle for a detailed description of the install.
if it has one it is in heater hose at firewall if it has one it is in heater hose at firewall
You know the heater hose on a vehicle needs replacing when it beings to swell and soften. The heater hose runs from the intake manifold to the heater core.
The 1997 VW heater hose has swivel nuts on each end of the hose. Turn the swivel nuts to the left to remove the heater hose.
i replace the filler neck on my 1994 E150 with a piece of radiator hose. it leaked every time i filled up with gas. had to replace the vent hose also with a piece of heater hose.
Raise the froth of your car. Drain the radiator. Remove the heater tube from firewall and loosen the hose clamps. Lower the vehicle after draining the antifreeze. Locate the heater core and remove the mounting clamps. Remove the heater core and replace it.