What is the name of a part after the throttle body that work with water and air

It is usually caused by the air leakage in the intake manifold. Check the following:
1. Check all the vacuum hoses from around the throttle body.
2. Under the throttle body there are three rubber hoses. Two pipes are of the same size and are used for the coolant circulation through the idle air control valve and the third one is a bit thicker than the two. It is used as the air release tube for the idle air control valve, (if the valve is separate from the throttle body). If the idle air control valve is separate type, it is attached to the side of the surge tank, other wise it is fixed to under the throttle body with Philips type screws (4 mm) as a single unit.
3. To locate the intake air leaking source, take a vacant mineral water bottle, fill it with tap water, make a small hole on the cap with a bag sewing needle, invert it and spray water by pressing the bottle with little pressure and pointing it towards a suspected area. If there is any air leaking from around the intake manifold it will produce an audible suction noise. Locate the area and fix it.
4. Remove the idle air control valve, clean and free it up and install it back.

Assuming it is a 4-cyl, the intake is the large tube connecting the air cleaner housing to the intake manifold, which is the metal body behind and above the top of the engine. See here, p2, p40. p168
http://www.turboninjas.com/camry/eg1.pdf

The Mass Air Flow sensor if fitted (not all Camrys had one that early) is fitted in the air intake just after the air cleaner and before the throttle body.
If you mean the Manifold Air Pressure sensor (different) that sits on the firewall flange behind the intake manifold. Follow the hose from the air intake chamber, p46
The Idle Air Control Valve is on the throttle body, see p168 and p208.

I don't know of an Idle Stabilizer Valve by that name on this engine, I think it is an alternative name for the IAC valve.

Hello and welcome. sounds like the throttle body may be just dirty. remove hose from air cleaner to the throttle body. clean out the throttle body bore and around the throttle body with some throttle body cleaner. then retest and see if the problem is repaired

follow the water inlet pipe to water pump the thermostat housing connects to water pump this is for 2.4l engine you have to remove exhaust manifold heat shield.you will see the water inlet pipe going to water pump inlet thermostat housing.for the 3.1 engine follow top radiator hose to thermostat housing you have to remove air filter air duct and filter housing , you have to remove throttle body unit with coolant hoses, you have to disconnect accelerator cable, transmission down shift cables at the bracket bolts to throttle body.once you remove throttle body unit then you can see and remove the thermostat housing to replace thermostat.you need to buy new throttle body gasket,and new small coolant hoses connects to the throttle body unit.have extra gallon antifreeze dexcool on hand.

1. Standing in front of the vehicle it's on the left front side of engine kind of low.
2. Be sure to get a gasket as well.
3. Drain the cooling system.
4. Loosen the air cleaner outlet duct clamps at the following locations:
   • Throttle body
   • Mass airflow/intake air temperature (MAF/IAT) sensor
5. Remove the radiator inlet hose clip from the outlet duct.
6. Remove the air cleaner outlet duct.
7. Reposition the outlet hose clamp at the water pump.
8. Remove the outlet hose from the water pump.
9. Remove the water pump inlet bolts.
10. Remove the water pump inlet and thermostat from the water pump. Water pump inlet/thermostat assembly location

To install:

1. Install the thermostat and water pump inlet to the water pump.
2. Install the water pump inlet bolts.
3. Tighten the water pump inlet bolts to 11 ft. lbs. (15 Nm).
4. Install the outlet hose to the water pump.
5. Position the outlet hose clamp at the water pump. NOTE
   Important: Align the arrow at the throttle body end of the duct with the throttle body attaching stud.
6. Install the air cleaner outlet duct.
7. Install the radiator inlet hose clip to the outlet duct.
8. Tighten the air cleaner outlet duct clamps at the following locations:
   • Throttle body
   • Mass airflow/intake air temperature (MAF/IAT) sensor
9. Tighten the air cleaner outlet duct clamp screws to 62 inch lbs. (7 Nm).
10. Fill the cooling system and check for leaks.

Read more: http://wiki.answers.com/Q/Where_is_the_thermostat_located_on_a_2001_chevy_suburban#ixzz1TvIO3kpD

Here is two pictures of the throttle body.....

The problem might be with the Idle Air Control valve. This component is mounted on the throttle body and as its name implies it contols the engine idle speed anytime the accelerator is released.

One thing to try is to have the IAC valve removed and with a throttle body cleaner, clean the IAC valve and the idle air bleed port on the throttle body. If doing this shows no improvement with the idle, then the IAC valve may require replacement.

Idle Air Control Valve Pintle may be bad If you disconnect the IAC and the problem ceases it can point to this being the problem.: Removal & Installation 3.5L Engine To Remove:

1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
2. Remove the fuel injector sight shield.
3. Drain the cooling system.
4. Remove or disconnect the following:
   • The air cleaner intake duct. Figure of IAC and TPS electrical connectors disconnected.
     
     
   • The idle air control (IAC) valve and throttle position (TP) sensor electrical connectors. Figure of cruise control and throttle control cables removed from throttle lever.
     
     
   • The cruise control cable and throttle control cable from the throttle body lever.
   • The fuel pressure regulator vacuum hose, positive crankcase ventilation (PCV) hose and the throttle body vacuum port hose.
   • The throttle body coolant hoses.
   • The throttle control cable bracket, leaving the throttle and cruise cables connected.
   • The upper nut holding the throttle body to the intake manifold.
   • The throttle body assembly.
5. Clean the gasket mating surfaces.

To Install:

1. Install a new gasket and new studs if necessary.
2. Install or connect the following:
   • The throttle body assembly.
   • Start the top nut by hand.
   • The throttle body coolant hoses.
   • Position the throttle control cable bracket and hand start the retaining nuts and bolt.
   • Torque the three throttle body retaining nuts to 89 in.lbs. (10 Nm). And the bracket retaining bolt to 115 in.lbs. (13 Nm).
   • The throttle body vacuum port hose, PCV valve hose and the fuel pressure regulator hose.
   • The throttle control and cruise control cables to the throttle body lever.
   • The IAC valve and TP sensor electrical connectors.
   • The air intake duct.
3. Refill the cooling system.
4. Install the fuel injector sight shield.

4.0L Engine To Remove:

1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
2. Relieve the fuel system pressure.
3. Remove or disconnect the following:
   • Negative battery cable.
   • The Mass Air Flow (MAF) sensor electrical connector.
   • The air cleaner intake duct.
   • The PCV valve fresh air tube. Figure of cruise control cable removed from throttle cable bracket.
     
     
   • The cruise control cable and throttle control cable from the bracket.
   • The cruise control cable and throttle control cable from throttle body lever. Figure of IAC valve and TPS connectors removed.
     
     
   • The idle air control (IAC) valve and throttle position (TP) sensor electrical connectors. Figure of fuel lines removed from retainer on throttle cable bracket.
     
     
   • The fuel feed and return lines from the retainer on the throttle control cable bracket.
   • The transaxle shift cable clip from the throttle control cable bracket. Figure of throttle body removed from water crossover.
     
     
   • The throttle body from the water crossover.

To Install:
NOTE: The Mass Air Flow (MAF) sensor inlet and the outlet of the air cleaner assembly must line up when installed. Misalignment may cause MIL illumination or driveability concerns.

1. Install or connect the following.
   • The throttle body to the water crossover. Torque the bolts to 106 in.lbs. (12 Nm).
   • The IAC valve and TP sensor electrical connectors.
   • The throttle and cruise control cables to the throttle body lever.
   • The throttle and cruise control cables to the throttle control cable bracket. The transaxle shift cable clip to the throttle control cable bracket.
   • The fuel feed and return line retainer to the throttle control cable bracket.
   • The MAF sensor electrical connector.
   • The air cleaner intake duct clamp. Torque the clamp to 27 in.lbs. (3Nm).
   • The PCV valve fresh air tube.
   • The fuel injector sight shield. Torque the nuts to 20 in.lbs. (2.3 Nm).
2. Install the negative battery cable.
3. Pressurize the fuel system and verify no leaks.

When you ran it without the intake on, did you get a Check Engine Light ? You removed the MAFS ( Mass Air Flow Sensor ) which tells the truck how much air is flowing into the throttle body ( for Air / Fuel ratio with pulse width on the injectors ). This is in the body of the air filter element

You can clean this with MAFS safe spray cleaner ( not all throttle body cleaners are MAFS safe, it will say on the can if it is. If it does not say MAFS safe, it is not.

The other is the IAT ( Incoming Air Temperature ) sensor. This indicates the air temperature, so coupled with the Air Flow, this gives the density of the air, to make a correct A/F ratio adjustment.

This is the one after the air filter and the MAFS, before the throttle body.
You can clean this as well, it is a bulb sensor, be careful with cleaning it.

If the RPM are jumping around at idle, this would be a function of the IAC ( Idle Air Control ) on the back of the throttle body. When the butterfly is closed, this is what lets air in.
It is under the plastic throttle body cover, held on to the back of the throttle body with 2 8mm ( 9mm ? ) bolts.


This could be gummed up, and slow to open, so the truck opens it too much, causing the rev up, and then closes it too much to make up for it.
It is a motor operating a piston to let air into the back of the throttle body.
Removing this and cleaning it with throttle body cleaner might be a good idea. Also check the vac line to the back of the throttle body for cracks, the rubber 90* elbow is prone to cracking over time.

Follow your air intake hose to where it's attached to engine, that's your throttle body.