Q: can a fan motor that is going out cause enough vibration to loosen bolts securing it to frame causing fan to bite into radiator?

asked by on August 23, 2017

Just got my car back a week ago. Had radiator replaced. Drove it a couple of days. Heard a Loud pop that sounded like a belt broke. Looked under hood belts ok. Next time I drove the car I was stopped at light. Heard noise, smelled like something burning then steam. Pulled over. When I looked saw bolts supposed to secure fan unit to frame sticking out very loose and fan jamed biting into the radiator unable to turn. Fan blade and radiator broken. I believe the Fan unit was was not secured properly, allowing fan unit to flop back and forth bumping the radiator until the blades bit into the radiator jamming the fan causing it to burn up fan motor & puncturing the radiator. My question is: If the fan motor was going out could it cause enough vibration to loosen the bolts securing the fan or cause the fan to wobble enough to catch on the radiator, jam into it and break the fan blade and the radiator? Or is it more likely to have occurred In the manner i described with the fan unit loose?

My car has 176000 miles.
My car has an automatic transmission.

The fan bolts would not loosen on their own and may not have been tightened up all the way. I have seen the fan blades come off and damage the radiator but never a fan bolts coming loose. They were not tightened when installed.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Vehicle needs tune-up

Some signs that a tune up is needed include, rough engine idle, hesitation during acceleration, and poor fuel economy. A tune up on your particular vehicle would include spark plugs and an induction service. The induction service would remove the carbon...

Car overheating due to radiator crack

When your engine is idling, the vehicle is likely stopped which lowers the airflow through the radiator. The more airflow the radiator receives the more likely the engine is to remain cool. When the air conditioning is turned on the...

no crank no start

Hello, thank you for writing in. A no-start condition is usually diagnosed starting with the battery. Typically the first thing to do is attempt to jump start the vehicle. If it starts, the the battery may not have been charged....

Related articles

Symptoms of a Bad or Failing Coolant Vacuum Valve Switch
If your car's heater blows little to none warm air, or if there is a coolant leak, you may need to replace the coolant vacuum valve switch.
Symptoms of a Bad or Failing Radiator Hose
Common signs include leaking coolant, engine overheating, the Low Coolant Light coming on, and radiator hose damage or collapse.
How Does a Radiator Keep an Engine Cool?
Car radiators cool off your engine and prevent your engine from overheating. Coolant absorbs engine heat and dissipates it through the radiator.