Most radiator hoses are made out of silicone based rubber that offers resistance to hardening and cracking. Hoses can also show signs of bulging when they get close to failure, others can fail with no warning. High quality radiator hoses have multiple-ply construction with a fabric mesh reinforcement depending on the application.
Locate the radiator drain plug which is where the system coolant will be drained
from, some cooling systems do not have a drain valve, the lower radiator hose should
be used to drain the system.
At each end of the hose clamps are used to secure the hose to the radiator and
engine. Use pliers, channel locks or a hose
clamp installation tool can be used to loosen the clamp, a twisting motion will
help loosen the seal of the hose.
Please watch this video of the job being done, then continue down the guide to glean additional helpful information.
After transferring the hose clamps to the new hose and cleaning fitting ends,
push the new hose onto the fitting while squeezing the clamp open, repeat this for
action the opposing hose end. Replace any clamps that are broken or worn.
When installing the hose clamps position the clamp in front of the fitting ridge,
this ridge is designed to help the hose and clamp stay secure under pressure. The
alignment of the clamp should be "square" (not crooked) to hold pressure needed
to successfully seal.
Once the new hose or hoses have been replaced,
refill the radiator with coolant.
Start the engine and allow to warm up to operating temperature which will allow
the thermostat to open, continue adding coolant until the level is between the indicator
lines on the coolant reservoir.
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