Genuine 1996 Chevrolet Beretta Exhaust Manifold

1996 Chevrolet Beretta Parts Questions & Experts Answers

• Q: How to remove the front and rear exhaust manifold in V6 engine on 1996 Chevrolet Beretta?

  A: To start the front manifold removal, disconnect first the negative battery cable and remove air cleaner assembly, inlet hose and mass air flow sensor. Allow to cool engine off, drain cooling system, and if needed, disconnect coolant bypass tube. Remove cooling fan assembly and oil dipstick tube mounting bolt. For earlier models with tubular steel manifolds, disengage front manifold extension pipe near rear manifold. For later models with cast iron manifolds, unbolt crossover pipe from front manifold. Lift off the manifold heat shield and its attaching bolts then remove the manifold from cylinder head. Clean gasket surfaces; also visually inspect the manifold for warping or cracking; have it machined flat again at an automotive machine shop if required. Install the new gasket into position on the manifold; tighten down screw gradually right from middle as you go towards edges. Begin reassembling other components in a reverse order then check for leakages in exhaust system. When removing the rear manifold begin by disconnecting the negative battery cable and allowing time for engine to cool down. Disconnect EGR tube from exhaust manifold and remove throttle cables as well as TV brackets when necessary. Take out heat shield and undo crossover pipe (or front manifold extension pipe) from rear of engine block Unplug oxygen sensor wire then if replacing manifolds move sensors onto new ones Set parking brake, block rear wheels then raise vehicle's front side on jackstands With vehicle raised up slightly higher than normal working level beneath it-Use penetrating oil in case of difficulties while taking out two exhaust pipe-to-manifold bolts Loosen all nuts including those which hold down exhaust pipes to their flanges under car floor Remove exhaust manifolds Check mating surfaces for perfect alignment; check both for cracks by closely examining them; make machining flat at an auto-machine workshop possible Put new gasket onto place on top of these manifolds finger-tightening fasteners before reasonably tightening from inside out Begin reassembling other components in a reverse order then run engine to check for smoke.