1. Radiator Hoses
Radiator hoses carry coolant between the engine and radiator. These hoses help control engine temperature by allowing coolant to circulate through the cooling system.
Common warning signs
- Coolant leak under the vehicle
- Engine temperature rising
- Sweet coolant smell
- Steam from under the hood
- Low coolant level
- Visible cracks or swelling
Why they matter: If a radiator hose leaks, cracks, collapses, or bursts, the engine may lose coolant and overheat quickly.