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Volkswagen Water Pump Troubleshooting

Are you wondering if your overheating problems are caused by the water pump? If so, what repairs are required? Cooling system problems can cause serious engine damage. The guidance of verified mechanical Experts will provide you with the assistance you need to get your problems fixed.

Given below are a few of the Volkswagen water pump questions that Experts have answered.

Can a replacement water pump with a metal impeller be installed on a 2003 Volkswagen Beetle when the original pump has a plastic impeller?

Both plastic and metal impeller are okay. It will have no effect on the performance of the pump.

Could a massive coolant leak on a 2002 Volkswagen Golf MK IV 1.6 that results in water dripping down the left side of the engine be from the water pump?

The leak is likely to be from one of the plastic tanks on the side of the radiator core. These can become loose over time due to the regular expansion and contraction they undergo. To check if this is the case the radiator will have to be removed. It should be inspected to see if there is any crystallization buildup on any of the pipes, tanks or core matter. If so, this will confirm the cause. A leak from the water pump is unlikely as the leak would then be from the bottom of the engine or from one of the pipes at the side of the engine block.

When the timing belt on a Volkswagen 2009 Volkswagen Jetta TDI with 70,000 miles is being changed, should the water pump also be replaced?

It is a common practice to replace the water pump, tensioners and rollers along with the timing belt as they tend to wear out along with the belt and doing the replacement at the same time may save on duplicating the labor costs in the near future.

What could cause the coolant level on a Volkswagen Passat GLX to drop from MAX to MIN every couple of days and how urgent is the repair?

This appears to be a slow leak. Since the vehicle has a closed cooling system, there should not be any drop in the coolant level. The best way to locate the leak is to have a shop do a cooling system pressure test. That being said, leaks from the water pump and the thermostat are the most common. A sign of this will be signs of coolant seepage appearing near the front of the oil pan on the passenger side of the vehicle. The leak will probably continue to get worse so the sooner it is fixed the better.

What could cause the coolant leak to still be present after the thermostat has been replaced on a 2002 Volkswagen Jetta 2.0?

One reason could be that O ring of the thermostat was not fitted properly and the seal is defective, resulting is a slow leak. The other common cause could be a leak from the water pump. It is not common for the cooling system to develop two leaks at the same time, but it can happen. A pressure test will be the best way to locate the source of the continuing leak.

Does a P2181 code on a 2009 Volkswagen Passat 2.0T indicate a thermostat problem and if so does the water pump also have to be replaced since that is where the thermostat is housed?  

The P2181 code is for a thermostat issue. It means that the engine is not warming up fast enough. The thermostat will need to be replaced. There is no need to change the water pump. The thermostat can be replaced separately.

If the radiator on a 1999 Volkswagen Passat 2.8 non-turbo with over 100,000 miles is being changed before starting a long road trip, would it be a good idea to also replace the water pump?

If the water pump has not been changed as of yet, it should be nearing the end of its life-cycle at this mileage. Since a long road trip is planned, it makes sense to replace it along with the radiator to avoid possible problem en route.

Is there any simple way of checking if the water pump on a 2004 Volkswagen Jetta 1.8T is working properly?

A simple test will be to pull the small hose off the coolant reservoir and rev the engine. If coolant emerges from the hose in a steady stream, the pump would appear to be working properly.

What could cause a P0118 code and steam to come from the small hose going to the coolant reservoir on a Volkswagen Jetta?

The code indicates a hot coolant condition. This is commonly caused by either a faulty thermostat or a water pump issue. The fact that steam is emerging from the small hose to the coolant tank indicates that the water pump is not working.

What is the labor time for replacing the water pump on a 2004 Volkswagen Beetle 2.0 non-turbo?

The book time for water pump replacement on this model is 2.9 hours.

What could cause a 2002 Volkswagen Cabrio to overheat in less than five minutes?

Case Details: There are no leaks or coolant loss and the fans are working.

With a full coolant tank, no leaks and the engine overheating in five minutes, the likelihood is that there is an issue with the water pump. A common cause is that the plastic impeller in the pump is cracked or broken and is unable to circulate the coolant. In such cases there will be no leak or coolant loss. It remains in the system but cannot circulate to cool the engine.

This article illustrates a few of the water pump problems you could be faced with. Timely repairs are essential to safe driving and protecting the vehicle for serious engine damage. The insights of verified mechanical Experts will tell you what you need to know to get repairs done the right way. Experts are available online to answer all your questions quickly, clearly and economically.

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