To remove the exhaust manifold, first disconnect the cable from the negative terminal of the battery, then raise the front of the vehicle and support it securely on jack stands. Apply penetrating oil to the bolts and springs retaining the exhaust pipe to the manifold, and after allowing the bolts to soak, remove them to separate the front exhaust pipe from the manifold, taking care not to damage the oxygen sensor. It may be necessary to remove the inner heat shield from above the right drive axle to access one of the bolts. Next, unbolt the lower exhaust manifold brace and remove it from the engine, then in the engine compartment, take off the heat shield from the manifold. Detach the manifold and gasket by removing the nuts and bolts. For installation, use a scraper to clean all old gasket material and carbon deposits from the mating surfaces of the manifold and
Cylinder Head. If the gasket was leaking, have the manifold checked for warpage and resurfaced if needed. If replacing the manifold with a new one, remove the lower heat shield and attach it to the new manifold. Position a new gasket over the cylinder head studs, ensuring any directional marks or arrows are noted. Install the manifold and thread the mounting nuts into place, then tighten the nuts and bolts from the center out in three or four equal steps. Finally, reinstall the remaining parts in reverse order and run the engine to check for exhaust leaks.