GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
GMC_Truck
🢒
2007
🢒
Sierra - 2WD
🢒
Transmission/Transaxle
🢒
Automatic Transmission - 4L60-E/4L65-E/4L70-E
🢒 1-2 Accumulator Assemble
Inspect the 1-2 accumulator piston (56) for the following conditions:
•
Porosity
•
Cracks
•
Scoring
•
Nicks and Scratches
Install a 1-2 accumulator piston oil seal ring (55) on the 1-2 accumulator piston (56).
Inspect the 1-2 accumulator housing for the following conditions:
•
Porosity
•
Cracks
•
Scoring
•
Nicks and Scratches
•
Debris or blocked passages
Important:
Some models may not use an outer 1-2 accumulator spring (54).
Install the 1-2 inner (104) and outer (54) accumulator springs.
Install the 1-2 accumulator piston (56).