Where is water pump and drive belt located on 2003 corolla ? Dealer recommended it needs changing along with timing chain tensioner which they say is leaking oil . I usually fix my own cars after doing my research so any help you provide will help , thank you !

Remove the water pump assembly to the timing chain housing bolts (2).

2. Remove the water pump.

3. Remove the water pump O-ring.

IMPORTANT:

The drive belt tensioner must be unloaded and the drive belt removed

before the water pump is removed.

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this vehicle has NO timing belt!! It uses timing chain instead, which do not need servicing unless damaged or worn. Hopefully this helps!!

Kia Sorento 2003-05
Water Pump - Removal & Installation

1. Before servicing the vehicle, refer to the precautions at the beginning of this section.
2. Drain the cooling system.
3. Disconnect the negative battery cable.
4. Remove the drive belt and the water pump pulley.
5. Remove the timing belt cover, timing belt, auto tensioner and idler pulley.
6. Remove the water outlet fitting, the thermostat case and the water pump fitting.
7. Remove the water pump mounting bolts.
8. Remove the water pump.
   



Fig. Water pump and timing belt assembly-exploded view

To install:



Fig. Water pump bolt locations

1. Clean the gasket surfaces of the water pump body and the cylinder block.
2. Install the new water pump gasket and pump assembly. Tighten the bolts to 12-16 ft. lbs. (17-22 Nm).
3. Install the water pump fitting, the thermostat case and the water outlet fitting.
4. Install the auto tensioner and timing belt. Adjust the timing belt tension, then install the timing belt cover.
5. Install the drive belt, water pump pulley and then adjust the auto tensioner.
6. Refill the coolant.
7. Run the engine and check for leaks.

1. Before servicing the vehicle, refer to the Precautions Section.
2. Drain the cooling system.
3. Disconnect the negative battery cable.
4. Remove the drive belt and the water pump pulley.
5. Remove the timing belt cover, timing belt, auto tensioner and idler pulley.
6. Remove the water outlet fitting, the thermostat case and the water pump fitting.
7. Remove the water pump mounting bolts.
8. Remove the water pump.

To install:




Fig. Water pump bolt locations



Fig. Water pump O-ring installation

1. Clean the gasket surfaces of the water pump body and the cylinder block.
2. Install the new water pump gasket and pump assembly. Tighten the bolts to 12-16 ft. lbs. (17-22 Nm).
3. Install the water pump fitting, the thermostat case and the water outlet fitting.
4. Install the auto tensioner and timing belt. Adjust the timing belt tension, then install the timing belt cover.
5. Install the drive belt, water pump pulley and then adjust the auto tensioner.
6. To adjust the drive belt tension, hang the belt on the pulley of the tensioner and install the tensioner.
   NOTE If the tensioner is already installed, loosen its mounting bolts to allow belt installation
   
7. Install the drive belt.
8. Adjust the belt tension to specification by turning the adjusting bolt clockwise or counterclockwise.
9. Air conditioning belt tension should be 0.28-0.039 inch. Alternator belt tension should be 0.39-0.051 inch. Power steering belt tension should be 0.31-0.051 inch.
10. Torque the tensioner assembly bolt to 33-36 ft. lbs. (45-50 Nm).
11. Refill the coolant.
12. Run the engine and check for leaks.

TY for using Fixya; remember comment and rated this.

If it's anything like the six cylinder engines from Audi, which I'm very familiar with, and from what I remember of the V8, you have a timing belt that drives the water pump, crank, and exhaust cams, and also includes a tensioner and an idler roller. The timing chains come into play in the cylinder heads. What Audi did was to only drive the exhaust cams off of the crank, using the timing belt, and inside each cylinder head there is a timing chain assembly that is used to drive the intake cams off the exhaust cams. On a periodic service (like the timing service) you only need to do the timing belt. The timing chains are only replaced if the tensioners fail - you'll know this by a diesel-like clatter from the cylinder heads. Failure of the chain drive assemblies is very rare, which is good because they're incredibly expensive (on the V6 engines they're upwards of $700 each). If you're doing this job because it's due based on mileage, don't touch the timing chains in the cylinder heads - only change the timing belt, tensioner roller, relay arm, hydraulic tensioner, idler pulley, water pump, and serpentine belt. You can leave the chains alone.

your engine has a timing belt not a chain and the water pump is run by the timing belt,and when the pump is changed the belt should be too,it should run you about $300 if the job is done right with the pump,belt,idlers and tensioner if needed,hope this helps

Hello and thank you for using FixYa!

To replace the water pump, you will need to remove all the drive belts. Then there are 2 black covers on the front timing cover. One cover is for the chain tensioner, the other is for access to the water pump. I would recommend you replace the tensioner the same time you do the water pump. The reason is, you need to remove that tensioner so the chain has slack. When the chain has slack, you can then unbolt and pull the water pump out. It could get stuck, so there are bolts that you need that you would use to run in to pop the pump free.

Hope this helps , Thanks Jay!

You 98 Corolla has a timing chain that it internal and need no normal maintenance. It uses a hydraulic/spring tensioner to keep things tight and as long as its quiet, everything is fine.
Your drive belt (not to be confused with a t. belt) is the external belt you see on the passenger side of the engine. It drives you alt, water pump, A/C and power steering. It uses a spring loaded tensioner to keep the belt tight. These can weaken over time and cause a rattle noise and belt slippage.

I would recommend buying a shop manual from any auto store.

If you are asking than chances are you do not have the required tools to remove the crankshaft bolt.

Remove the valve cover and verify engine is TDC
Remove all accessory belts
Remove the engine mount on the side of your accessory belts
Remove upper and lower timing chaing covers
Using a 24" 1/2" extension along with a breaker bar and crank shaft holder remove the crankshaft bolt
Remove the timing chain tensioner and remove the timing chain
It is a good idea to replace the water pump and all oil seals while doing this job.

Align all marks (balance shaft, crank, cram, and water pump if it has one) and install in reverse order.

By hand this should take 2-3 hours with the right tools
With air tools this should take 1 hour for the average joe or at least it only takes me 45 min to an hour.

Well, waterpump on your car is internal inside the timing chain area, being driven by the timing chain. You need to remove drive belts, the small black side covers, that are screwed into the front engine cover. The left on has the chain tensioner, the right one has the water pump behind it. Once the covers are removed, you need to push the timing chain tensioner inside and put a pin inside of it (tensioner ) to hold it in. Once you have done that, you need to rotate the engine counterclockwise (until you feel tension) to loosen the chain around the water pump. Then you will use 2 bolts (6mm and about 2 inches long) and screw those into the water pump body. This will pull the pump out of the engine, so pretty much the bolts are going to be acting as puller device to remove pump out of engine. reverse install procedure. This is not the easiest of repairs and not for a novice or someone, that doesn't really work on cars. Good luck.

Adrian,

Until 2002 Toyota's had a timing belt. After 2002, Toyota's have a timing chain. Manufacturer/dealers recommend replacement of the timing chain at about 90,000 miles. I've talked to several mechanics - including the dealer - about the cost of changing out the chain. The lowest price I found from a very reputable mechanic is $260-270. He told me that if I brought in the part, he'd reduce the cost. The dealership was almost double!

Re: water pump: I haven't found anything that stated it must be changed at 70K miles. Hope this was helpful.

Lady V