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Can I change the electronic idler motor on my 1998 camry or does it require
Remove the air intake tube where it connects to the throttle body and inspect for any black sutty build up aroung throttle plate.
Where is the intake tube located...
.#2 a faulty Idle Air Control motor. This part is an electronic idle adjuster to alow air through the throttle body even when you are not pushing down on the gas pedal.
Can I change this motor or does it require a technician...
Re: Can I change the electronic idler motor on my 1998...
The air intake tube is the plastic or rubber hose that connects the air filter box to the throttle body. It should be about 3-4 inches in thickness..... The motor is relitivly easy to change. Although, you will need to remove the throttle body to change because it is located on the botton of the throttle body. Let me know if you have any problems.
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WARNING Release fuel system pressure before servicing fuel system components. Service vehicles in well ventilated areas and avoid ignition sources. Never smoke while servicing the vehicle. This may result in personal injury or *****.
Release fuel system pressure.
Remove the air cleaner lid, disconnect the inlet air temperature sensor and makeup air hose.
Remove the negative battery cable.
Remove the engine cover or throttle control shield if equipped.
NOTE Wrap shop towels around hose to catch any gasoline spillage.
Disconnect fuel supply tube from rail.
Remove the Intake Manifold, refer to the Engine section.
Disconnect electrical connectors from fuel injectors.
Remove bolts holding fuel rail.
Remove the fuel rail and injectors.
Remove the injectors from the fuel rail.
To install:
Install injectors to the fuel rail.
Apply a light coating of clean engine oil to the O-ring on the nozzle end of each injector.
Insert fuel injector nozzles into openings in intake manifold. Seat the injectors in place. Tighten fuel rail bolts to 170-230 inch lbs. (19.5-25.5 Nm).
Attach electrical connectors to fuel injectors.
Connect fuel supply tube to fuel rail. Refer to Quick Connect Fittings in the Fuel Delivery section
Install Intake Manifold, refer to the Engine section.
Install the engine cover or throttle control shield if equipped.
Install the negative battery cable.
Install the air cleaner lid, connect the inlet air temperature sensor and makeup air hose. Tighten air inlet tube clamps to 20-30 inch lbs. (2-4 Nm).
Turbocharged Models
WARNING Release fuel system pressure before servicing fuel system components. Service vehicles in well ventilated areas and avoid ignition sources. Never smoke while servicing the vehicle. This may result in personal injury or *****.
Release the fuel system pressure.
Disconnect the negative battery cable.
Disconnect the throttle body inlet hose and remove from throttle body.
Disconnect the purge hose from the throttle body.
Unlock and disconnect the electrical connection at the throttle body.
Remove the throttle control shield .
Remove the throttle and speed control cables from the throttle body.
Remove the cables from the throttle body bracket.
Unlock and disconnect the MAP sensor electrical connector.
Remove the vacuum lines from the rear of the intake manifold.
Remove the 5 bolts from the front of the intake manifold.
Remove the 2 bolts from the rear of the intake manifold.
Remove the intake manifold. Cover the lower intake manifold openings.
Drain the Coolant system.
Move the upper radiator hose clamp, so that the hose can be rotated up and out of the way.
Remove the 2 small hoses from the thermostat housing.
Remove the 2 bolts from the thermostat housing and rotate the assembly up and out of the way.
NOTE Wrap shop towels around hose to catch any gasoline spillage.
Disconnect the fuel line from the fuel rail.
Unlock and disconnect the electrical connectors from the fuel injectors.
Remove the wiring harness from the fuel rail.
Remove the 2 bolts from the fuel rail.
Remove the fuel rail and injectors from the intake manifold.
To install:
Install the fuel injectors to the fuel rail.
Apply a light coating of clean engine oil to the O-ring on the nozzle end of each injector.
Insert fuel injector nozzles into openings in intake manifold. Seat the injectors in place.
Install the 2 bolts to the fuel rail. Tighten fuel rail bolts to 170-230 inch lbs. (19.5-25.5 Nm).
Install the wiring harness to the fuel rail.
Connect and lock the electrical connectors to the fuel injectors.
Connect the fuel line to the fuel rail.
Rotate the assembly back into place and install the 2 bolts to the thermostat housing tighten to 110 inch lbs. (12.5 Nm).
Move the upper radiator house clamp back into place.
Install the 2 small hoses to the thermostat housing.
Fill the Coolant system.
Install the intake manifold.
Install the 2 bolts to the rear of the intake manifold tighten to 250 inch lbs. (28 Nm).
Install the 5 bolts to the front of the intake manifold and tighten to 250 inch lbs. (28 Nm).
Install the vacuum lines to the rear of the intake manifold.
Connect and lock the MAP sensor electrical connector.
Install the cables to the throttle body bracket.
Install the throttle and speed control cables to the throttle body.
Install the throttle control shield.
Connect and lock the electrical connections at the throttle body.
Connect the purge hose to the throttle body.
Connect the throttle body inlet hose to the throttle body and tighten clamps to 20-30 inch lbs. (2-4 Nm).
Connect the negative battery cable.
Use the DRB® scan tool ASD Fuel System Test to pressurize the fuel system. Check for leaks.
It is below the egr valve close to the intake manifold below the intake air sensor, there is a tube running to it from the engine to recirculate exhaust air with fresh air, there is a clamp holding it to the air intake that you need pliers to remove, then you need to turn counter-clockwise 90 degrees to remove, do the reverse to install. to make it easier to access remove the upper intake. The pcv valve is not visible, however, you can identify it by the 3" inch long rubber hose that connects to the steel line running into the bottom of the intake. I have the part and am going to replace it soon, although Ford really makes it difficult to remove it - pcv valve is located just under the throttle body. remove air cleaner assembly from throttle body and you will see a u shaped hose running horizontally.
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.
Usually you wouldn't connect a vacuum hose to the air filter, but if its a DIY job your after you would need to get the male connectors and some other hardware to do a custom job (drilling required) otherwise to have the same effect you could just connect a vacuum hose to the Intake Manifold or throttle body.
The Intake manifold usually has some spare slots for small vacuum hoses.
To locate follow the air filter box tube back to the throttle body, the throttle body, the intake is directly off this and connects to the engine. see diagram
To do a "Tune-up" you will need 6 spark plugs, a throttle body gasket, an air filter, an air compressor, a blow gun, a magnetic pick-up tool and a socket set with ratchet and extensions.
You must remove the intake air resonator, the #3 timing belt cover, the accelerator cable, the throttle control motor connector, the throttle position sensor connector, the accelerator pedal position sensor connector, the throttle body bracket and the throttle body. Then remove the spark plug cables and the ignition coils. You will then crack the spark plugs loose 1/4 turn and use the air compressor and blow gun to blow the debris out of the spark plug tubes so it does not enter the combustion chamber when the spark plugs are removed. Then remove the spark plugs. You will need the magnetic pick-up tool to fish the plugs out of the tubes once they are completely unscrewed.
Install new spark plugs and torque them to 13 ft.lbs (18 Nm)
Install throttle body with nw gasket. Install all other parts removed and connect all connectors.
Install intake resonator and new air filter.
The Idle Air Control valve is located on the throttle body. If you follow the intake tube from your air filter all the way back to the intake manifold, where the intake tube connects to is the throttle body. Remove the intake tubing and you can see the throttle body.
There are two sensors on the throttle body and a vacuum line. You'll see two harnesses going to the throttle body, one is the IAC.
However, a quick diagnostic check can be done without touching the throttle body to confirm your problem. If the car has a normal idle when initially started but then rises to a higher idle and stays there BUT then if you were to shut the car off and restart it and it comes back to normal that is the Throttle Position Sensor (TPS). This is also located on the throttle body (the other sensor to the IAC). If it is the IAC it will be high and maybe fluctuate a bit.
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