How to Fix EZGO Motor Engine that is Too HOT (Overheating)

EZGO golf cart motor is overheating

How Hot should a EZGO motor get?

An EZGO motor is capable of withstanding a relatively wide range of temperatures, which means it can withstand high heat too. Some older models of EZGO golf carts are known for heating up quite frequenctly.

Some owners of the EZGO TXT complain that their golf cart overheats up after an uphill ride of 35 to 40 minutes. They are barely able to rest their hands on the bonnet because the bonnet is too hot.

The ideal maximum of a EZGO golf cart motor should reach no higher than 220 degrees Fahrenheit. (104 degrees Celsius)

This means that you can rest your hand on the cart for barely 5 seconds before it burns your hand.


My Advice

 My advice would be to rest the cart for a whole day. You will want to hit a small red coloured button marked “reset” after opening the bonnet of the car. This will reset your engine and give it a much-needed respite. You can also stop your cart from having a burnout in this way.

Another effective method of cooling down the temperature of a EZGO motor is to prepare a makeshift hydrating system.

For this, you need to arrange for a half inch diameter copper tube. You can use it to wrap it around the outside of your cart’s motor.

One end should be under the water level, facing forward while the other end should exit from behind.

You can also have the inlet behind the prop and the exit system in the drainage. This will surely bring the temperature of the cart down.


Effects of a golf cart motor that is too hot

EZGO motors can overheat very often. If you don’t attend to the hot motor immediately, it may run the risk of getting its wires fried and you will be left with a car that keeps shutting down.


Effects of a golf cart motor that is too cold

Winter is the perfect time to see golf carts freeze over.

As golf cart batteries contain lead acid, If you carelessly keep the batteries in a discharged throughout the winter, the electrolytes present in the battery casing will freeze due to getting too cold.

On freezing, the electrolyte will expand; causing the battery shell to crack and the acid might leak out. Once this thaws, it might cause an accident.

Never leave your golf cart batteries in the cold because it is common for a golf cart to stop working due to the freezing temperatures.


Why is my EZGO motor getting too hot?

The EZGO motor becomes hot for a handful of reasons. Some of these are:

  • If you drag your car uphill on a steep terrain, especially without pausing, it will get very hot within half an hour of run time.
  • Driving slow, like 2 to 3 miles per hour can also heat up the EZGO motor dramatically under normal conditions. However, with the PDS version, they seem to have taken care of the problem a bit.
  • Often, dragging in the brakes can cause the engine to heat up.
  • If you install tyres with a bigger radius (more than 18 inch), they will definitely heat things up.


What are the symptoms of an EZGO engine overheating?

The obvious symptom is that the engine will be too hot to touch. Every golf cart gets hot with continuous use, but if you’re not able to put your hand on the bonnet, you know you have a real issue at hand.

If you are able to put your hand on it for even 4 to 5 seconds, your engine is doing fine and there is no issue of overheating. The cables or the throttle control can burn up sometimes, with excess overheating.


How to Stop an EZGO Golf Motor Overheating?

You can try these simple steps to prevent your EZGO golf motor from overheating:

  • It is crucial that while driving straight uphill, you need to give your cart a few minutes of resting time after say every five minutes.
  • Always take care of the tyre diameter while changing tyres.
  • A DCS or PDS model will have less of these heating problems.
  • You can use an aftermarket controller with the turbo mode turned on.
  • Make sure you don’t have too much pressure on the batteries, motor or the controller. Use good quality wires.
  • Check the load on every battery. Also connecting wrong terminals with wrong wires can heat up your cart.


EZGO TXT motor overheating troubleshooting

There can be several reasons why your EZGO TXT golf cart is overheating. Some of these are listed below:


Slow speed of driving:

 Your EZGO TXT motor can keep overheating very easily if you are taking it out for a drive at a creeping speed. This one likes to run instead! This is a problem that many owners unknowingly face and end up panicking about.


Lift and tyres:

The TXT as well as the RXV support tyres of about 18 inch. So if you try to lift your buggy or try some customisation with bigger radius tyres, your car will heat up really easy. So make sure you avoid that.

  • Both of these things generate a lot of strain for the cart, which forces it to retreat to a thermal shutdown.
  • One way to ensure that your cart doesn’t heat up quickly is to install a fan close to the controller heat sink to keep the air circulating around it. You can also install another one near the fender panel just to make sure the cart doesn’t overheat.
  • Another option is to upgrade and customise your controller.


EZGO Marathon motor overheating troubleshooting

  • One reason your EZGO Marathon is overheating quickly can be that you are using a wrong (too lean) mix of oil. The correct ratio of oil to gas in such an engine is 128:1 (one ounce oil per gallon of gas).
  • If the motor gets too hot, it will dry up the rings and you will end up needing more oil mix and new rings.
  • Also check if the plug is getting black and moist in which case, you had better replace it.
  • Make sure the fan is properly cleaned and not covered in dust or grime. The dust will tend to block the flow of air coming in that normally cools the engine down.
  • If you are using a fuel mix with ethanol in it, then remember that ethanol will produce more heat when burnt, as a result there will be a vapour lock condition in the carb. This will heat up the engine normally higher than any other fuel mix.


EZGO RXV motor overheating troubleshooting

The problem can be attributed to a lack of battery and solenoid compatibility. The RXV has a really complex motor system. Any change in the batteries can overheat the solenoid. 

The EZGO RXV’s solenoid comes with the label of activation on 36 Volts per compartment. But it might surprise you that most of the assembly line RXVs comes equipped with 4×12 Volts battery set up. This is because after you install the controller, it lowers down the 36V to 24V in order to keep the contact closed for a better, cooler operation.

However, you can customize your cart to get 8V batteries installed, by using a separate rack. That way, you can get rid of the nagging overheating problem this car has.

If your car has had a lift, it can cause overheating problems since the tyres become taller than the stock. You should only use 18 inch tall tyres on your EZGO RXV.

I would recommend that you prefer only OEM brakes which are best suited for the RXV.


EZGO PDS engine overheating troubleshooting

A lot of slow moving around while playing a round of golf can overheat your cart engine. In this case, the motor as well as the controller are highly likely to get very hot.

The EZGO PDS has a stock controller which is equipped with a thermally activated shut down feature.  This enables the cart to automatically slow down or shut down when it overheats.

Furthermore, the EZGO PDS cart engine is configured in such a way that it makes use of a regenerative brake system. It is also called a ‘motor brake’ in casual terms.

Conventionally, a cart with a regenerative braking system will get more heated compared to a non-regen motor.

The controller can be configured either as more regen or less regen. For running high speeds you require to configure it to less regen setting, which will ultimately result in less heating. 

Apart from this, climbing uphill will automatically heat things up, so you can’t really help it. With the help of a jumper, you can change the resistance and alter the settings of a controller without the help of a mechanic.


Ernie loves documenting interesting facts about golf.

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