Control Valve Body Diagnostic Inspection

Control Valve Body Diagnostic Inspection

The purpose of this inspection procedure is to determine if the control valve body assembly is the cause of a transmission DTC or symptom concern. The table will assist you in identifying which component within the control valve body is associated with a particular DTC or symptom. The components within the control valve body are not serviced separately.

Component Testing

Warning

Valve springs can be tightly compressed. Use care when removing retainers and plugs. Personal injury could result.

Caution:
After cleaning the transmission components, allow to air dry. Do not use cloth or paper towels in order to dry any transmission components. Lint from the towels can cause component failure.

Caution:
Do not reuse cleaning solvents. Previously used solvents may deposit sediment which may damage the component.

1. Remove the control valve body assembly. Refer to Control Valve Body Replacement Control Valve Body Replacement.

2. Clean and inspect all control valve body assembly components for the following conditions listed below:

* Stuck or scored control valve

* Scored or damaged control valve body bore

* Broken, weak, or damaged control valve return spring

* Missing, damaged, or stuck check ball

* Missing, restricted, or out of position modulated fluid pressure orifice

* Missing or damaged control valve retainer

* Debris or sediment

• If a condition is found, and cannot be repaired by cleaning, replace the control valve body assembly.












Repair Instructions

Control Valve Body Replacement Control Valve Body Replacement