What Are The Reasons And Damages Of  UTV 400 Overheating?

UTV 400 overheating can be a frustrating experience since it  leaves long term damages to your UTV. It can even lead to expensive repair and replacement.

Your UTV might be overheating due to clogged radiator, faulty pump and thermostat, trapped air, leaked hoses and any other potential cause.

In this article we are going to discuss the potential reasons  for UTV overheating and damages it can cause to your vehicle.

 Reasons Of UTV 400 Overheating

Here are some reasons for UTV 400 overheating.

  1. Faulty temperature sensor and fan can be the reason for overheating.
  2. If the water pump doesn’t work effectively then it can cause the engine to overheat.
  3. A clogged radiator contains dirt and debris that causes overheating.
  4. Another reason of overheating is leaked and damaged hoses
  5. Overworking UTV generates more heat and leads to overheating.
  6. Faulty thermostat causes the engine to overheat.

What Are The Damages Of UTV 400 Overheating?

Transmission Components Damage

utv Damages Of UTV 400 Overheating
Source: powersportsid

Some UTVs work on automatic transmission and overheating affects it badly by tearing the internal components and lubrication of the engine.

How to fix it

  1. First of all you need to know which part and components are damaged
  2. Once you locate the faulty parts then try to repair them
  3. If those parts cannot be repaired then replace them with the new
  4. Lubricate the engine properly to see if it fixes the problem.
  5. You can take help of the instruction manual for replacing old and damaged parts.

Take the UTV for a test drive just to check if it is functioning properly otherwise consult an expert to avoid further complications.

Engine Damage

utv Engine Damage
Source: atvtrailrider

Overheating causes much damage to the engine. It severely damages cylinder heads, pistons and rings, blown gaskets and spark plugs.

Engine cannot work without these components so it is mandatory to keep an eye on them to make your vehicle work effectively.

How to fix it

  1. Overheating affects the blown gasket and spark plug so you need to check it first.
  2. If these components are damaged then repair them.
  3. Disconnect the spark plug wires and check for cracks and leaks. If repairing is not possible then go for replacement.
  4. Install a new gasket, connect the wire and run the engine to make sure it is working properly.
  5. Consult the vehicle manual for doing all kinds of repairs and replacements.

Electrical Damage

utv Electrical Damage
Source: finntrail

UTVs work on electrical systems and overheating affects its internal wires, fuses, connectors and battery to a great extent.

Sometimes it just needs little fixing otherwise battery replacement becomes necessary for proper functioning of the vehicle.

How to fix them

  1. First of all try to find the exact place of damage and use a multimeter for this purpose.
  2. Then repair faulty wires, fuses and battery.
  3. If they cannot be repaired then replace them with new parts.
  4. Install the internal components and run your UTV to check if everything is working properly.

Trapped Air

utv Trapped Air
Source: accuair

Sometimes air and debris accumulates in the engine pipes and it blocks coolant flow in the engine.

Then engine becomes hotter and effects its performance by causing overheating

  1. Locate the air bleeder screws in the cooling system of UTV.
  2. Open them with the help of a wrench or pliers.
  3. Then fill the coolant in the coolant reservoir until it reaches full mark but avoid its overfilling.
  4. Then start the engine and as soon as the engine warms up trapped air travels through air bleeder screws.

Take your UTV for a drive to check if it is working properly.


In short , UTV overheating is due to trapped air, broken fan, leaked hoses, faulty engine and thermostats.

It damages the internal and transmission components of engine, its electrical system

We have discussed all causes alongwith their possible solutions to make things easy for you.

If you are still confused and do not know what to do then it is better to consult a professional to get things fixed in a proper way.