Skip the auto shop - Our mechanics make house calls

Q: Timing belt and water pump replacement

asked by on

I asked Toyota dealership to replace timing belt and water pump. They replaced timing belt and said that they did not replace water pump because it was not leaky and they don't recommend to replace water pump on 4runners because they don't leak. It seems like they forgot to replace water pump and trying to find an excuse why they did not replace it. Any thoghts?

My car has 110000 miles.
My car has an automatic transmission.

Hello. I am sorry to hear of this. The seriousness and inconvenience of the circumstance you are writing in about is an excellent example of why dealing direct with a professional and cutting out the bureaucracy of what are becoming ever larger "repair centers" is good for real people. If you had an agreement with the Dealership, oral or written (it doesn’t matter insofar as consumer law in the U.S.), to replace the water pump IN CONJUNCTION WITH the replacement of the timing belt and they did not perform as promised, legally they are on the hook for remedying their failure.

In this case, the remedy is assuming the EXTRA cost of removing the belt (i.e., regaining access) and installing the pump. You were smart and proactive in requesting that the pump be replaced. It should be replaced and that’s WHY aftermarket timing kits include the pump! And, your supposition that their "after the fact" MTBF (mean time before failure) "statistics" are too good to be true is correct.

If it is true that water pumps on your specific year, make and model, have a "low" rate of failure, all they need do is show you the data but they do not have such data. The bottom line is you certainly should insist that they install the pump and also remind them that a new OEM Toyota thermostat should be installed as well. As far as the timing belt is concerned, I hope they installed new pulley bearings (the aftermarket kits include them as well for a very good reason: the grease in those bearings oxidizes due to the heat and then the pulleys eventually get noisy. Please let us know if you have further needs or concerns regarding this or any other repair on your vehicle.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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

Q: Car is overheating

A problem with either one of those components could certainly cause an overheating concern. However there are several others as well. Your vehicle is known to have leaking head gaskets and well as intake manifold gaskets. I would ask for...

Q: Car bouncing and wobbling

Movement from side-to-side could mean many things. Loose steering components are a common cause. Inner or outer tie rod ends that are loose will make the vehicle to wobble or shake. These need to be inspected regularly. If one were...

Q: My car works only in reverse not in drive

Hi there. The forward clutch seems to be not applying in the transmission. The forward clutch drives all of the forward gears in the transmission. The forward clutch could be slipping, the seals on the forward clutch could be damaged,...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.