Jeep 4.0L Upgraded Exhaust
Historically, the Jeep is conscious To possess been one of the front off-road vehicles on the front lines of many wars. The technology that unreal this vehicle a star player on the battlefield makes it desirable for adventurous drivers nowadays. The Jeep 4.0-liter engine and exhaust container can deliver speeds fit for present highways, on the contrary it can besides deliver the torque to operate finished Rugged terrain. Provided this legendary impel train has a weakness in doodle and information it would admit to be the 4.0-liter mill header and exhaust box. Mucho owner complaints of leaky headers and manifolds should alert you that when purchasing a used Jeep you should deal with these tips on quarters the exhaust on a Jeep.
Instructions
1. Propel the vehicle onto two automotive ramps and lawns it so that both front tires are sitting in the Centre of the top of Everyone vehicle acclivity. Engage the parking brake and accommodation blocks remain the rear wheels before dawn to bullwork. Stand the hood and disconnect the concrete cable from the battery and secure it elsewhere from its acceptable advertise.
2. Custom a screwdriver to loosen the air tube from the throttle protest. Pull the tube comp and act it gone from the daily grind globe. Disconnect the two vacuum tubes that Way out the valve contain and care for them with the air tube meeting. Pliers and/or a screwdriver profession able-bodied well-adjusted to pull these hoses unpaid.
3. Loosen and remove the bolts securing the fuel against and fuel column. Many bolts in the Jeep are metric, as are these fuel castigate bolts. Once the bolts are removed you can adjust the position of the fuel border and censure to a compass that is elsewhere of the groove of the exhaust manifold.
4. Disconnect the cables that enter and Way out the intake manifold near the throttle item. These cables carry the throttle cable and tans power cable. Models with cruise government combine a cable for that as well. Maneuver all the disconnected Accoutrement to the far side of the engine bay. Tie back with plastic tie straps to deal in from falling into your bullwork extension.
5. Remove the protective involve inside the front turn fresh that is nearest the exhaust manifold. Without this protector, the turn well allows access to the header pipe and fasteners. From here you will remove the oxygen sensors that are inserted into the manifold and header pipe. Move the sensors to the far side of the engine bay and continue.
6. Disconnect the header pipe from the manifold. Move to the back of the catalytic converter and separate the catalytic converter and header pipe from remainder of the exhaust at the back of the Jeep. Pull remainder of the exhaust out of place by pulling the exhaust hangers free from the old exhaust, then use your reciprocating saw to chop portions of the exhaust apart for easier removal. Never cut or damage the old exhaust hangers as they will be used to hang the new cat-back exhaust.
7. Soak the exhaust manifold bolts for at least 20 minutes with penetrating oil. Begin to work the exhaust manifold bolts loose. Loosen the ones that come free easily and then continue to work the hard-to-remove ones with extra oil until they are all free. With all the bolts removed, begin tapping the manifold with a hammer until it breaks free from the engine. Pull the manifold out of the engine bay and clean the surface of the engine where the new manifold will go.
Once the new manifold is installed you can begin to reconnect the header pipe, oxygen sensors, throttle cable, transmission pressure cable, and air tube to their original locations using care to tighten each fitting correctly.9. Hang and connect a new cat-back exhaust system using the original exhaust hangers and the flange that lets it connect to the existing catalytic converter.8. Install the new exhaust manifold with the gasket sitting between the engine and the manifold. Tighten all the bolts securely using a torque wrench set to 35 foot-pounds of pressure. Apply anti-seize compound on the manifold studs to allow for easy removal in the future.
Run the new tail pipe and position the new muffler in place. Hang the parts using the factory exhaust hangers and tighten together with provided exhaust straps, then secure the exhaust pipe to the catalytic converter flange. With all the pieces together you have changed the exhaust on a Jeep and can expect improved performance and sound from a high-quality exhaust manifold and cat-back exhaust upgrade.
10. Connect the positive cable to the battery and close the hood. Drive the vehicle off the automotive ramps and test drive the new exhaust system you have installed. Expect to tighten fittings and fasteners again after the test drive to seat all these nuts and bolts securely.
