How do you remove an upper intake manifold?
Remove the 13 mm studs and 10 mm bolts retaining the upper intake manifold. Lift the back end of the intake manifold closest to the power steering pump like a hinge to provide access to the 3/8-inch cooling lines under the throttle bore. Loosen the clamps on the coolant lines and remove the upper intake manifold from the vehicle.
How do you replace an upper intake gasket?
Plug in the harness into the fuel injectors and coolant temperature sensor. Place new upper intake manifold gaskets into place. Put a new gasket on the EGR tube where it meets the upper intake manifold. Reinstall the upper intake manifold. Reinstall the EGR valve. Reinstall the map sensor and bracket.
What happens if you have an intake manifold leak?
An intake air leak in the manifold will result in poor running conditions, such as an erratic or rough idle, hesitations, or sluggish acceleration. An intake leak will allow for additional unmetered air to enter the manifold.
Why does coolant travel through the intake manifold?
This is due to the fact that engines rely on the intake stroke of the engine to draw the air / fuel mixture into the engine, thus creating negative pressure (vacuum) within the intake manifold. Many vehicles also have coolant passages in the intake manifold, meaning engine coolant travels through the manifold.
Remove the 13 mm studs and 10 mm bolts retaining the upper intake manifold. Lift the back end of the intake manifold closest to the power steering pump like a hinge to provide access to the 3/8-inch cooling lines under the throttle bore. Loosen the clamps on the coolant lines and remove the upper intake manifold from the vehicle.
Plug in the harness into the fuel injectors and coolant temperature sensor. Place new upper intake manifold gaskets into place. Put a new gasket on the EGR tube where it meets the upper intake manifold. Reinstall the upper intake manifold. Reinstall the EGR valve. Reinstall the map sensor and bracket.
What kind of engine does a Pontiac Grand Am have?
General Motors used the 3.4L engine on numerous popular vehicles, including the Pontiac Grand Am, Chevrolet Venture, Pontiac Montana, Chevy Malibu, Olds Silhouette, Oldsmobile Alero and the Buick Rendezvous, just to name a few. Unfortunately, the 3400 engine tends to leak from the lower intake manifold to the cylinder head gasket.
How do you remove an alternator from an intake manifold?
Disconnect the vacuum lines from the upper intake manifold. Remove nut retaining the alternator support strut from the corner of the intake manifold. Remove the 13 mm bolt retaining the alternator to the alternator support strut. Remove the 10mm bolts retaining the EGR valve to the intake manifold by the throttle bore. Remove the EGR valve.