Sierra 1500 4WD V8-6.0L (2007)
7. If the fluid level is low, add only enough fluid to bring the level into the HOT band. It does not take much fluid, generally less than one pint
(0.5L). Do not overfill. Also, if the fluid level is low, inspect the transmission for leaks. Refer to Fluid Leak Diagnosis. See: Transmission and
Drivetrain/Automatic Transmission/Transaxle/Testing and Inspection/Component Tests and General Diagnostics/4L60-E/4L65-E/4L70-E -
Automatic Transmission/Fluid Leak Diagnosis
8. If the fluid level is in the acceptable range, push the dipstick back into the dipstick tube all the way, and then flip the handle down to lock the
dipstick in place.
9. If applicable and if the vehicle is equipped, reset the transmission oil life monitor only if the fluid was changed.
Fluid Condition Inspection
Inspect the fluid color. The fluid should be red or dark brown.
*
If the fluid color is very dark or black and has a burnt odor, inspect the fluid and inside of the bottom pan for excessive metal particles or other
debris. A small amount of "friction" material in the bottom pan is a "normal" condition. If large pieces and/or metal particles are noted in the fluid
or bottom pan, flush the oil cooler and cooler lines and overhaul the transmission. If there are no signs of transmission internal damage noted,
replace the fluid filter assembly, repair the oil cooler, and flush the cooler lines.
*
Fluid that is cloudy or milky or appears to be contaminated with water indicates engine coolant or water contamination. Refer to Engine
Coolant/Water in Transmission. See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Testing and Inspection/Symptom Related
Diagnostic Procedures/4L60-E/4L65-E/4L70-E - Automatic Transmission/Engine Coolant/Water in Transmission
