Intake Rocker Arm Oil Control Valve Components

Some 2014-2015 Impala (VIN 1) and Malibu models equipped with the 2.5L engine (RPO LKW) may have several driveability conditions, such as a surge, rough idle, or misfire. The engine may misfire on cylinders 1 and 2 or cylinders 3 and 4. DTCs P0101 (MAF Sensor Performance), P0106 (MAP Sensor Performance), P0171 (Fuel Trim System Lean) or P0300 (Engine Misfire Detected) also may be set.

 

If these conditions are found, follow the appropriate diagnostic procedures in the Service Information. If the concern is not resolved, inspect the intake rocker arm oil control valve for missing components. (Fig. 9)

 

Fig. 9

 

If any intake rocker arm oil control valve components are missing, replace the intake rocker arm oil control valve and the camshaft cover. The camshaft cover must be replaced because some components may have become lodged in the camshaft cover oil passages.

 

If the intake rocker arm oil control valve is not missing any components (Fig. 10), only replace the intake rocker arm oil control valve.

 

Fig. 10

 

– Thanks to David Rutkowski

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2 Comments

  1. If the intake rocker arm oil control valve was missing any components, the camshaft cover should also be replaced because some components may have become lodged in the camshaft cover oil passages.

    Also, if an aftermarket oil control valve was used, order GM PN 19419980.

  2. I’m working on 2014 Malibu lt the other mechanic changed the rocker arm valve and light is off now but car jerks on freeway not