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its a breather hose which helps to reculate sump preasure should replace it
Look on your valve cover. It should be connected to a hose going to your air breather.
Because there is a hole in the hose! Replace the hose
How to replace power steering hose in 1999 ford excort
Drain the radiator in the 1999 Blazer. Loosen the hose clamps at each end of the radiator hose. Gently twist the hose and pull the ends to break free. Replace with a new hose and clamps.
The stock ones are junk,they have two wires,instead of the American style flat band,that really dig into the hose. Just replace them with the regular hose clamps from the auto store.
A breather is something you put on your gas tank to let the fumes out. It is the hose coming out of your tank.
It is a hose that connects from the air filter to valve cover that stops contamenents from staying in the engine.
to the air box
in most(all)vheicles gas tank breather runs side to side with fuel tank hose(where you put the gas nozzle when filling up ) look for a small hole under the area where the gas nuzzle goes usually that is the (gas thank breather)
The thermostat is under the top radiator hose. Remove the radiator hose at the top of the engine, below the hose flange sits the thermostat. just pull it out and replace it with a new one, then replace the hose over it. hope this waas the help you wewe looking for.
Remove the vacuum hose from the sensor. Pull the sensor out of the air cleaner housing. Insert the new sensor into the air cleaner housing and attach the vacuum hose.