Engine Coolant Bypass Hoses

Replacement Parts > Belts and Cooling > Hoses and Pipes

Engine Coolant Bypass Hoses

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What is an engine coolant bypass hose?

An engine coolant bypass hose is a hose used to re-route coolant around other engine components, typically the thermostat.

What is the purpose of an engine coolant bypass hose?

The purpose of an engine coolant bypass hose is to regulate the temperature of the engine by providing coolant to the engine at all times regardless of the thermostat’s position.

How do I know if my engine coolant bypass hose is faulty?

You can look for signs of deterioration such as cracks or leaks in the hose. You may also notice a decrease in engine performance or overheating.

Can a faulty engine coolant bypass hose cause damage to my vehicle?

Yes, a faulty engine coolant bypass hose can cause engine damage due to overheating. It can also lead to other problems such as coolant leaks.

How do I replace my engine coolant bypass hose?

  1. Disconnect the negative battery cable.
  2. Drain the coolant from the radiator.
  3. Remove the old hose.
  4. Install the new hose and secure it with the clamps.
  5. Reconnect the negative battery cable.
  6. Refill the radiator with coolant.


How often should I inspect my engine coolant bypass hose?

The engine coolant bypass hose should be inspected regularly as part of your vehicle’s routine maintenance. It is recommended that you inspect the hose at least every 6 months or 6,000 miles.