How to Remove the Xterra Exhaust Manifold
The exhaust manifold on a Nissan Xterra is mounted to the cylinder head of the engine. The manifold takes the gases created internally in the engine and sends them out through the exhaust system on the truck. You need to remove the manifold if you want to install an aftermarket model that increases horsepower, or if you want to change the cylinder head gasket. In either case, the first step is to remove the exhaust manifold.
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Things You'll Need
- Flat-head screwdriver
- 3/8-inch ratchet and socket set
- Open-end wrench set
- Nissan tool J-44626
Instructions
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1
Open the gas cap on the car. Pop the hood. Remove the air intake tubing from the engine, using the flat-head screwdriver. Pull the tubing to the side.
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2
Unbolt the throttle control actuator and gasket from the front of the throttle body using the 3/8-inch ratchet and socket. Unplug the harness to the air fuel ratio sensor on the top of the engine using your hands. Remove the sensor using Nissan tool J-44626.
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3
Unbolt the exhaust tube from the exhaust manifold using the 3/8-inch ratchet and socket. Unbolt the exhaust manifold cover from the exhaust manifold with the ratchet.
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4
Unbolt the brackets on the exhaust manifold with an open-end wrench. Unbolt the exhaust manifold from the cylinder head with the ratchet and a wrench. Remove the exhaust manifold from the vehicle.
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Tips & Warnings
If you can't find Nissan tool J-44626 at your local dealer, you should be able to rent it from a local auto parts store.
