Water Pump/Thermostat

The dealer told me they needed the VIN number to give a price for these parts.Why do they need this? Do I need to give the VIN if I buy the parts at another parts supplier? Isn't the car information enough?

Thanks

My car has 81000 miles.
My car has an automatic transmission.

Experienced mechanics share their insights in answering this question :
Hi There,
In some cases it is necessary to supply the VIN number in order for the dealer to determine your exact specific model. The VIN number denotes several key characteristics about the car all the way down to the specific paint color, interior package, engine, transmission and many other things. There is nothing to worry about in terms of security when giving the dealer your VIN number as this is just a more precise way for them to correctly locate the parts necessary for your car.

How to Identify and Fix Common car Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced mechanics :

The water pump is the heart of your car`s cooling system. It pumps coolant through the engine to keep it from overheating. A water pump doesn`t move water alone; it controls the coolant flow through your engine. The coolant is usually a blend of water and antifreeze.
Unusual Noises: In addition to coolant leaks and engine overheating, another common symptom of water pump failure is strange noises coming from your vehicle`s engine. More specifically, a high-pitched sound coming from the pump may indicate that a water pump pulley has loosened or a bearing has started to wear down.
It is a common practice to also replace the vehicle`s thermostat when doing a water pump replacement. It is not always needed, but if you suspect that your engine got hot when the water pump failed, it`s a good idea to take care of it.
The water pump moves the coolant through the system and the thermostat regulates this flow to maintain operating temperature. If the water pump has failed, the coolant will not flow through the system so the temperature will rise quickly and the heat will be concentrated on the engine.
In most cars the thermostat is placed under a housing near the water pump on the cylinder head ; the housing is connected directly to the top radiator hose . In a few cars the thermostat is housed near the bottom hose. Test the thermostat quickly by starting the engine from cold.
With the engine off, open your hood and locate the water pump pulley. With gloves on, grab it and wiggle it back and forth. There should be no movement, if there is, this along with the noise is a good indication you may have a water pump problem.
Wear and Tear

The most common cause of water pump failure in BMW cars is simply from age and heavy use of the vehicle. Over time, most parts in a car start to break down through constant wear and tear. Since the water pump is made of plastic, it will slowly degrade over the lifetime of your vehicle.

When a water pump completely fails, it is no longer able to move coolant through the engine; this causes it to overheat. If you see steam, pull over immediately and call your mechanic for assistance — continuing to drive with an overheated engine can damage it to the point that it will need to be completely replaced.
When a water pump completely fails, it is no longer able to move coolant through the engine; this causes it to overheat. If you see steam, pull over immediately and call your mechanic for assistance — continuing to drive with an overheated engine can damage it to the point that it will need to be completely replaced.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Can a jeep run and drive without a water pump??
ANSWER : Driving or running the engine without the water pump working to circulate the coolant through the motor will cause the motor to overheat and may damage the engine costing thousands of dollars versus using a tow truck to take the vehicle to the shop that will cost a lot less. I would not recommend running the engine more than a few minutes at a time or you will overheat it.

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My water pump is leaking but I replaced timing belt and pump a year ago. Can I just replace the water pump this time?
ANSWER : Hello. You can just replace the water pump in this case. Although, the cost of just the timing belt is fairly negligible in comparison to the total labor of the job. My estimator says the water pump is a 6.5 hour job. Multiply that by whatever the shop rate is and you have the total labor without parts. You end up saving about $100 or less on parts if you only replace the pump.

The deciding factor will be the condition of the timing belt. If it has problems, you won’t be saving yourself any money by reusing it. In addition, there are seals and pulleys that may need to be replaced as well.

Assuming all the related parts were replaced the first time around, there isn’t a reason you can’t reuse them. I would say you should weigh the savings of reusing them against the actual condition of the parts. This is best determined after a complete disassembly. Keep in mind, time estimates will vary a bit depending on many factors. Either way, the labor is the largest cost.

If you would like to have the water pump replaced, a certified professional from YourMechanic can come to your car’s location to perform this service at your convenience.

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I have a 00 deville I just changed the water pump housing and water pump the thermostat and radiator the upper and lower radiator 2000 Cadillac De Ville
ANSWER : Hi there – I suspect your radiator is clogged or otherwise corroded so that it is not shedding heat as efficiently as it should. Idling with the heater on was getting rid of heat without loading the radiator. When you’re driving, the engine is generating more heat than both the heater and radiator can get rid of. Checking the difference between hot coolant going to the radiator (top hose), and going back into the engine (bottom hose) may show that there is very little temperature difference. This means the radiator is not doing it’s job, and need to be professionally cleaned or replaced. Good diagnostic effort on your part to avoid the obvious "it’s another Northstar head gasket" diagnosis! For confirmation, I would recommend an overheating inspection by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for repairs.

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Is leaking water but the thermostat the water pump and the heater core is good but it’s slowly dripping water onto the ground
ANSWER : Based on your description, you may have a small leak somewhere in the connections to your radiator, water pump or to your engine. Often times water leaks start out small and develop over time increasing and decreasing depending on the temperature of the water. I would recommend having an expert from YourMechanic come to your home to diagnose and repair your cooling system.

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My car still overheats, I replaced water pump and thermostat, and now after water pump install it knocks bad
ANSWER : Hi there:

Trying to diagnose an overheating issue remotely is incredibly difficult. However, there are three things you can do to attempt to solve this issue. First, remove the water pump, verify it’s the right replacement part and reinstall with new gaskets. Second, flush the radiator coolant fully, as the issue could be caused by an obstruction inside the heater core or other coolant lines. Third, make sure to check all electrical connections to the radiator sensors and components. If you check and complete all three of those tasks, and you still have overheating problems, contact a professional mobile mechanic to complete a car is overheating inspection.

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Intake manifold came off replaced gaskets new water pump thermostat and put in barred leak still overheats
ANSWER : Hi there. Have you checked to see if the fans are coming on? Do they achieve both normal and high speed? Is there any noise or abnormal operation? There could also be an air pocket in the cooling system, or the thermostat installed backwards (it does happen). Does the engine boil over? Check the actual temperature of the engine with an infrared thermometer temperature gun and compare the readings to the combination meter gauge. The gauge or sensor could be inaccurate. I strongly suggest having a qualified technician perform an inspection to avoid replacing unnecessary parts. Your Mechanic has several technicians available that can assist you with a car is overheating inspection.

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Does the water pump need to be replaced if the water pump belt is showing signs of wear? Or just the belt?
ANSWER : Hi, thanks for writing in. There is no reason to replace the water pump every time the belt is changed, unless the pump itself is damaged or not working properly. The belt may show signs of wear which is fairly common between 80k-100k miles. I would not recommend putting the belt service off as this can cause major damage if the belt were to snap. I would recommend having an expert from YourMechanic come to your home to inspect your belts to determine when and if they would need to be replaced, while at the same time inspecting your water pump and cooling system to be sure there are no issues with it.

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My water pump just dumped all its fluid. Is it safe to drive my truck if I fill it back up with water without a new pump?
ANSWER : Anytime there is no or low coolant in a vehicle, it can be very harmful to the engine. Low coolant can cause a seized engine or a blown head gasket.

It is recommended that you have the vehicle towed to a location to have the cooling system repaired. If you can, refill the engine with coolant, and if the fluid does not run out as quickly as you put it in, then you may be able to drive a short distance to a safe location, but it is not recommended.

If you need assistance, get a mobile mechanic, such as one from YourMechanic, to inspect and determine the source of the leak, and replace the water pump, if needed.

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