GM Service Manual Online
For 1990-2009 cars only

No Engine Braking; Manual Second -- Second Gear

Checks

Causes

Coast Clutch

No apply (Refer to No Engine Braking; All Manual Ranges )

Intermediate or Fourth Band (100)

No apply (Refer to No Fourth Gear, or Slips in Fourth Gear )

Pressure Switch Assembly (13)

Leaking or inoperative

Vehicle Speed Sensor (62)

Reads 0 mph