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Well basically, you remove the intake plenum and replace the gasket and reinstall the plenum. Here are the steps:
1. Disconnect the negative battery cable from the remote jumper terminal located at the right strut tower. 2. Remove the air inlet resonator and tube. 3. Remove the throttle actuator cables from the throttle arm and bracket. 4. Disconnect Secondary Runner Valve (SRV), Manifold Tuning Valve (MTV), Throttle Position Sensor (TPS), Idle Air Control (IAC) motor electrical connectors. 5. Remove the electrical connector and the Intake Air Temperature/Manifold Absolute Pressure (TMAP) sensor. 6. Disconnect vacuum hoses from the Secondary Runner Valve (SRV) reservoir, Speed Control reservoir, and PCV. 7. Remove right and left intake manifold supports. 8. Remove support brackets at the intake manifold front corners and MTV. 9. Loosen upper fastener attaching throttle body to support bracket. 10. Remove clips attaching EGR tubes to intake manifold. 11. Remove intake manifold bolts and manifold 12. Remove old gaskets, Clean gasket surfaces, and install new gaskets. 13. Reverse steps to reinstall manifold
first you have to diconnect throttle cable and trans kick down from throttle body. than disconnect wires and vacuum hoses and remove upper intake manifold plenum. that should give you access to valve covers . Remove bolts from covers and change gaskets. also replace the gasket on the upper intake plenum. install items in reverse order of removal. keep track of vacuum lines where the go when you remove . mark with tape their location.
If I Remember Correctly, Those Have A Black Plastic Plenum On Top Of Alluminum Intake. Just Remove All Wiring Hooked To Area Of Consern, Remove Fuel Lines From Fuel Rail, Remove Fuel Rail, Remove All Bolts From Plenum, Drain Coolant, And Remove Intake. Just Remember, It's Not As Hard As It Looks. It's Just Nuts And Bolts. Remove Anything That You See Can Stop You From Removing What You Need. Good Luck
Sounds like you may have an upper intake manifold leak. Typically the gasket between the Plenum and the lower intake dries up and gets sucked into the intake a little causing a leak and a high idle issue. The repair requires the removal of the plenum and replacement of the gasket. NOTE: there is a torx bolt hidden between the center plenum runners and can only be seen by looking straight down at the top of the plenum and it may be covered in dirt. If you have to use a bar to pry off the plenum you probably have missed a bolt. Typically it is the one noted above. Best of luck.
The best way to remove the rear valve cover is to remove the intake plenum. There is really no other way to do it. It is not a hard job, removing the intake plenum, but, trying to tackle the rear cover without taking off the plenum is almost impossible. If he does remove the plenum, make sure he replaces the plenum gasket. Hope this helps.
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Removal of the plenum is pretty straight forward. You will need to replace the plenum gasket after you remove it; the gasket is not reusable. Personally, if I was going to take the trouble to remove the plenum, I would replace the plugs and wires back there, also.
I know, I have a 93 Camry V6, and it is a real pain to do the plugs and wires with the plenum on. There are no secrets or great tips on the plenum removal, just take your time. Remember that there are different size bolts, and where they go. Please get back to me if you need any more info...Hope this helps, and thanks for choosing FixYa to resolve your issue.
The graciousness of a FixYa rating for my assistance would be greatly appreciated.