Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
To Remove
- Remove the engine covers.
- Remove the seven nuts securing the upper half of the intake manifold.
- Undo the hose clips on the rubber duct. Also disconnect the IAC valve's hose and unplug the rear knock sensor's connector from the duct.
Remove the rubber duct.
- Unhook the two cables (accelerator and Cruise Control) from the throttle lever and bracket.
- Undo the intake manifold's retaining stay by removing the upper bolt and slackening the lower bolt.
- Remove the cable conduit and disconnect the vacuum hose from the nipple on the left-hand side underneath the manifold.
Lift up the upper half of the intake manifold and rest it on one of the studs in the lower half or else support it with a rubber mallet or the like.
- Remove the four retaining nuts for the main throttle and the TCS throttle.
Withdraw the main throttle and disconnect the hoses.
- Fit a new gasket on the TCS throttle body. Make sure that the holes match up.
- Fit the throttle body in place and tighten the four retaining nuts.
Tightening torque: 8 Nm (6 lbf ft).
- Reconnect all hoses to the throttle body.
- Fit a new gasket on the mating surface of the intake manifold and place the upper half of the intake manifold accurately in position.
- Tighten all the nuts securing the upper half of the intake manifold. Start with the nuts in the middle and continue alternately towards the outer ends of the manifold.
Tightening torque: 20 Nm (15 lbf ft).
- Tighten the retaining stay at the rear of the intake manifold.
Tightening torque: 20 Nm (15 lbf ft).
- Connect the vacuum hose to the nipple underneath the intake manifold on the left-hand side and tighten the clip.
Refit the cable conduit.
- Hook the cables back onto the bracket and throttle lever.
- Fit the rubber duct and tighten the hose clip. Connect the IAC hose and plug the rear knock sensor's connector into the duct.
- Refit the engine covers.
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.