Hummer H3. Manual

2007 TRANSMISSION

Automatic Transmission - 4L60-E/4L65-E/4L70-E - H3

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

Refer to Drives in Neutral.

Refer to No Park.

Refer to No Reverse or Slips in
Reverse.

Refer to No Drive in All Ranges.

2007 Hummer H3

2007 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - H3

2007 Hummer H3

2007 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - H3

Hummer H3. Manual - part 716