What is an engine bypass hose?
What is an engine bypass hose?
A fifth hose, called the bypass hose, is used to circulate the coolant through the engine, bypassing the radiator, when the thermostat is closed. Some engines do not use a rubber hose. Instead, they might use a metal tube or have a built-in passage in the front housing.
What do you use to remove a bypass hose?
Use a screwdriver to loosen the bypass hose clamps and remove the hose. In some cases, the bypass plumbing uses a pipe instead of a rubber hose.
Why do I need a bypass hose for my water pump?
Car engines need a way to equalize water pump pressure. The engine is cold when it first starts, but the water pump spins even though it isn’t needed. Without a bypass route, the coolant would dead-head against a closed thermostat.
How do you remove a gas tank from a Dodge truck?
Remove the fuel inlet hose on the back. Unscrew the hose clamp with a flathead screwdriver. Pull the hose off the piping of the fuel tank. Unsnap the wires by pulling them from the harness. They will unsnap by pulling the tab on the connector and pulling straight out. Pull the fuel line off by unsnapping it at the quick connector.
Is it necessary to replace a coolant bypass hose?
If the bypass circuit uses a pipe, inspect the old pipe. These normally rust and routine replacement is vital to maintain the integrity of the cooling system. Tighten the radiator drain valve. Lower the car from the jack stands and refill the radiator with coolant. Start the vehicle.
Use a screwdriver to loosen the bypass hose clamps and remove the hose. In some cases, the bypass plumbing uses a pipe instead of a rubber hose.
Car engines need a way to equalize water pump pressure. The engine is cold when it first starts, but the water pump spins even though it isn’t needed. Without a bypass route, the coolant would dead-head against a closed thermostat.
If the bypass circuit uses a pipe, inspect the old pipe. These normally rust and routine replacement is vital to maintain the integrity of the cooling system. Tighten the radiator drain valve. Lower the car from the jack stands and refill the radiator with coolant. Start the vehicle.
Where is the bypass hose on a radiator?
The bypass hose is below the housing. The bypass hose is always much smaller than the radiator hose. Install a new hose and tighten the clamps. If the bypass circuit uses a pipe, inspect the old pipe. These normally rust and routine replacement is vital to maintain the integrity of the cooling system.
