Special Tools
EN 23951Valve Manometer
Remove the oil level indicator. Install aEN 23951valve manometeror equivalent.Start the engine.Check for slight vacuum. The vacuum level should be less than3.377-kPa (1-in-Hg).If vacuum is higher, inspect and verify that the clean airhose from cam cover to air intake is not blocked or kinked.If vacuum is in the normal range, block or pinch off theclean air hose. The clean air hose is the hose between the camcover and air intake system. Vacuum should increase on themanometer. If held too long, vacuum will be drawn through thecrankshaft seals creating a sucking sound.If vacuum does not increase, the orifice in the intakemanifold could be plugged.If there is zero vacuum or pressure, verify compression ofthe engine.If compression is normal, check for a blocked orifice at theintake manifold. Clean the orifice.Heated Oxygen Sensor Replacement - Sensor 2 Engine Control Engine Control Sensors O2 Sensors
Heated Oxygen Sensor Replacement - Sensor 2CalloutComponent NamePreliminary ProcedureRaise and support the vehicle. Refer toLifting and Jacking the Vehicle.1Heated Oxygen SensorCaution:Do not remove the pigtail from either the heated oxygensensor (HO2S) or the oxygen sensor (O2S). Removing the pigta ...