* Clogged radiator: A restricted radiator can't allow coolant to flow freely. When the engine demands more coolant under acceleration (due to increased heat), the pressure builds up, and the weaker hoses collapse under the strain.
* Failing water pump: A weak or failing water pump may not be circulating coolant effectively. This leads to uneven heat distribution and pressure buildup in the system, again causing hose collapse.
* Collapsed or restricted heater core: Similar to a clogged radiator, a blocked or collapsing heater core restricts coolant flow, creating pressure spikes.
* Head gasket failure: A blown head gasket allows combustion gases to enter the coolant system. This introduces pressure that's *not* related to normal coolant circulation and can cause hoses to collapse or burst. This is a serious problem requiring immediate attention.
* Pressure cap issue: A faulty radiator pressure cap won't relieve pressure properly. This will force pressure to build up excessively, resulting in hose collapse.
It's crucial to get this checked immediately. Driving with collapsing hoses can lead to overheating, engine damage, and potentially a dangerous situation. You risk damaging the engine beyond repair if the system overheats.
Have a mechanic inspect your cooling system thoroughly. They will likely check:
* Coolant level and condition: Look for signs of contamination (oil, etc.).
* Radiator pressure test: This will determine if the system is holding pressure correctly.
* Water pump operation: Check for proper function and flow.
* Heater core flow: Ensure there are no restrictions.
* Head gasket integrity: They may perform a leak-down test.
* Condition of the hoses themselves: Check for weaknesses, cracks, or deterioration.
Don't delay getting this addressed – the consequences of ignoring the problem can be very costly.
