Circuit/System Testing
WARNING: This page is about a different car, the 2009 GMC Sierra and 2009 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Inspect for the following conditions:
- Transmission line pressure low-Refer to Line Pressure Check . If the line pressure is low, refer to Oil Pressure High or Low .
- Transmission fluid flow through cooler and/or auxiliary cooler, if equipped, is restricted due to:
- Transmission fluid level low
- A clogged filter
- A leaking filter or seal-Refer to Automatic Transmission Fluid and Filter Replacement .
- A seized stator in the torque converter-Refer to Torque Converter Diagnosis .
- Air flow through transmission fluid cooler and/or auxiliary cooler, if equipped, is restricted due to:
- Damaged fins
- Debris
- Engine overheating due to:
- Low coolant level-Check coolant temperature, coolant level, and hoses.
- Restricted air flow
- Restricted coolant flow-Refer to Engine Overheating
- If any of the conditions listed are found, repair as necessary.