OEM 2002 Cadillac Eldorado Intake Manifold

2002 Cadillac Eldorado Intake Manifold Parts Questions & Experts Answers

• Q: How to replace the intake manifold on 2002 Cadillac Eldorado?

  A: To replace the Intake Manifold, you will first need to remove the 2 nuts from the Intake Manifold sight shield id and remove the sight shield from the engine. Remove the coil module connectors from coil modules in camshaft covers, pcv dirty air tube from the camshaft cover, and for the pcv fresh air tube . Remove the fuel regulator vacuum tube and the vacuum tubes from the air solenoid. Disengage if fitted, the 2 pushnuts securing engine coolant heater wire and save it for later. Carefully move the surge tank pipe away from the Fuel Rail studs and remove the 8 electrical connectors from the 8 fuel injectors . Disconnect the fuel inlet and return quick-connect fittings at the Fuel Rail, by removing the 4 bolts that attach the Fuel Rail to the Intake Manifold. Remove the Fuel Rail bracket from the water crossover and lift the whole Fuel Rail and injector assembly up from the Intake Manifold. Remove the 10 bolts from the Intake Manifold and loose the plenum duk clamp at the rear of the Intake Manifold using an upward motion at the front. Clean and inspect Intake Manifold before lightly greasing the inner edge of rubber plenum duct and clean of debris on Cylinder Head or intake. Install new gaskets to the Intake Manifold by making sure to secure the PCV Valve Hose to the fitting at the front before setting the Intake Manifold into its place by placing the rear into the plenum duct, and lower the front onto the cylinder heads. Loosely tighten the 10 bolts of the Intake Manifold to the cylinder heads and then tighten them in sequence to 10 nm (89 inch lbs). Make sure that the plenum duct is firmly connected to the rear of the Intake Manifold and tighten the plenum duct clamp to 2.25 nm (20 inch lbs.). Lubricate the Intake Manifold Fuel Injector bores with light mineral oil, gm p/n 9981704, clean engine oil or equivalent and press the entire Fuel Rail and injector asssembly into position. Mount the 4 bolts that secure the Fuel Rail to the Intake Manifold and tighten them to 10 nm (89-inch lbs.). Mount Fuel Rail bracket retaining bolt onto the water crossover and tighten to 25 nm (18 ft. Lbs.), then attach the quick connect fitting to the Fuel Rail. Connect the 8 electrical connectors to the 8 fuel injectors, insert the surge tank pipe onto the Fuel Rail studs, and place the engine coolant heater wire onto the fuel rails studs where fitted. Mount the 2 pushnuts, attach the vacuum tubes to the air solenoid, the fuel regulator-vacuum tube, the pcv fresh air tube as well as the pcv dirty air tube to the camshaft cover and connect the coil module connectors to the coil modules on the camshaft covers. In order to inspect for fuel leaks, switch ignition switch to on position for 2 seconds, then switch it off for 10 seconds, then make the switch on again. Lastly, seat the Intake Manifold sight shield onto the engine and bolt the Intake Manifold sight shield nuts, with a torque of 3 nm( 27 inch lbs).