Chevrolet Silverado / GMC Sierra. Manual — part 1009
J 44528
Output Carrier Bearing Race Remover
J 44529
Stator Shaft Bushing Remover
J 44530
Clutch Piston Spring Compressor
J 44587
Main Shaft Holder
J 44723
Transmission/Stand Adapter Plate
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &
Silverado
J 45023
Control Main Filter Wrench
J 46409
Torque Converter Lifting Handles
J 47339-1
Piston Return Spring Compressor
J 47339-2
Seal Area Protector
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &
Silverado
2008 TRANSMISSION
Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis
Silverado, Sierra & Silverado
SYMPTOMS - AUTOMATIC TRANSMISSION
Symptom Diagnosis
Diagnostic Category
Diagnostic Information
DEFINITION: This table consists of 9 diagnostic categories that are located in the left
column. Using this column, choose the appropriate category based on the operating
conditions of the vehicle or transmission. After selecting a category, use the right column to
locate the specific symptom diagnostic information.
Fluid Diagnosis:
This category contains the following topics:
Fluid condition: appearance,
contaminants, smell, overheating
Line pressure: high or low
Fluid leaks
Refer to Transmission Fluid Check.
Refer to Oil Pressure High or Low.
Refer to Fluid Leak Diagnosis.
Refer to Oil Out the Vent.
Noise and Vibration Diagnosis:
This category contains the following topics:
Ratcheting noise
Noise: drive gear, final drive, whine,
growl, rattle, buzz, popping
Vibration
Refer to Ratcheting Noise.
Refer to Ticking Noise in Reverse.
Refer to Vibration in Reverse and
Whining Noise in Park.
Refer to Popping Noise.
Refer to Whine Noise Varying with
RPM or Fluid Pressure.
Refer to Buzz Noise or High
Frequency Rattle Sound.
Refer to Noise in Random Ranges.
Range Performance Diagnosis:
This category contains the following topics:
Drives in Neutral
No Park
No Reverse
No Drive
Refer to Drives in Neutral.
Refer to No Park.
Refer to No Reverse or Slips in
Reverse.
Refer to No Drive in All Ranges.
Refer to No Drive in Drive Range.
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis
Silverado, Sierra & Silverado
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis
Silverado, Sierra & Silverado
No engine braking
Shift selector indicator does not match
transmission gear range
Lack of power or hesitation
Refer to No Overrun Braking -
Manual 3-2-1.
Refer to Range Selector Displays
Incorrect Range.
Refer to Lack of Power or Hesitation.
Shift Quality (Feel) Diagnosis:
This category contains the following topic:
Harsh, soft or slipping shifts
Harsh, soft or delayed engagement
Shift shudder, flare or tie-up
Refer to Harsh Shifts.
Refer to Slipping or Harsh 1-2 Shift.
Refer to No 2-3 Shift or 2-3 Shift
Slips, Rough or Hunting.
Refer to No 3-4 Shift, Slips or Rough
3-4 Shift.
Refer to Harsh Garage Shift.
Refer to Delay in Drive and Reverse.
Refer to 3-2 Flare or Tie-Up.
Shift Pattern:
This category contains the following topics:
One forward gear only
Two forward gears only
Gear missing or slipping
No upshift or slipping upshift
No downshifts
Non-First gear start
Refer to First Gear Range Only - No
Upshift.
Refer to Third Gear Only.
Refer to Second/Third Gear Only or
First/Fourth Gears Only.
Refer to Slips in First Gear.
Refer to Slipping or Harsh 1-2 Shift.
Refer to No 2-3 Shift or 2-3 Shift
Slips, Rough or Hunting.
Refer to No 3-4 Shift, Slips or Rough
3-4 Shift.
Refer to No Part Throttle or Delayed
Downshifts.
Refer to Second Gear Start.
Shift Speed Diagnosis:
This category contains the following topic:
Inaccurate or inconsistent shift points
Refer to Inaccurate Shift Points.
Torque Converter Diagnosis:
This category contains the following topics:
Refer to Torque Converter Diagnosis.
Refer to No Torque Converter Clutch
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis
Silverado, Sierra & Silverado
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