Clean the intake manifold-(1) matingsurfaces.Inspect the intake manifold for damage.Inspect the intake manifold for cracks near metallicinserts.Clean and inspect the intake manifoldinsulator-(2) for damage.
Inspect the crankcase ventilation passages-(1) inthe intake manifold face for blockage.
Warning:Refer toSafety Glasses Warning.
Clean the crankcase ventilation passages with compressed airif necessary. Use a maximum of 172-kPa(25-psi) of air pressure.Replace the intake manifold as necessary.Park Brake and P (Park) Mechanism Check Automatic Transmission Unit Parking Lock Mechanism
Warning:When you are doing this check, the vehicle could begin tomove. You or others could be injured and property could be damaged.Make sure there is room in front of the vehicle in case it beginsto roll. Be ready to apply the regular brake at once should thevehicle begin to move.Park on a fairly s ...