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Home >> Chevrolet >> 2006 >> Cobalt LTZ >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 (Manual Transaxle - Mu3 - Service & Diagnosis) >> Description and Operation >> Transmission System Description and Operation >> Power Flow

Power Flow

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Neutral

In neutral, with the engine running and the clutch engaged, the input shaft will turn. With the 1st/2nd, 3rd/4th, and 5th/Rev synchronizers in a neutral position, power will not flow to the output shaft.

1st Gear

In 1st gear range, the 3rd/4th and 5th/Rev synchronizers are in neutral and the 1st/2nd synchronizer sleeve is moved toward the 1st gear blocking ring and 1st gear on the counter shaft. Because the 1st/2nd synchronizer hub is splined to the counter shaft, torque is transmitted from the input shaft 1st gear through the counter shaft 1st gear, synchronizer sleeve and hub, counter shaft 3rd gear, output shaft 3rd gear, and into the differential (final drive) assembly.

2nd Gear

In 2nd gear range, the 3rd/4th and 5th/Rev synchronizers are in neutral and the 1st/2nd synchronizer sleeve is moved toward the 2nd gear blocking ring and 2nd gear on the counter shaft. Since the 1st/2nd synchronizer hub is splined to the counter shaft, torque is transmitted from the input shaft 2nd gear through the counter shaft 2nd gear, synchronizer sleeve and hub, counter shaft 3rd gear, output shaft 3rd gear, and into the differential (final drive) assembly.

3rd Gear

In 3rd gear range, the 1st/2nd and 5th/Rev synchronizers are in a neutral, and the 3rd/4th synchronizer sleeve is moved toward the 3rd gear blocking ring and 3rd gear on the input shaft. Since the 3rd/4th synchronizer hub is splined to the input shaft, torque is transmitted from the input shaft through the synchronizer hub and sleeve, 3rd drive gear, 3rd driven gear, output shaft, and into the differential (final drive) assembly.

4th Gear

In 4th gear range, the 1st/2nd and 5th/Rev synchronizers are in neutral and the 3rd/4th synchronizer sleeve is moved toward the 4th gear blocking ring and 4th gear on the input shaft. Since the 3rd/4th synchronizer hub is splined to the input shaft, torque is transmitted from the input shaft through the synchronizer hub and sleeve, 4th drive gear, 4th driven gear, output shaft, and into the differential (final drive) assembly.

5th Gear

In 5th gear range, the 1st/2nd and 3rd/4th synchronizers are in a neutral position and the 5th/Rev synchronizer sleeve is moved toward the 5th gear blocking ring and 5th gear on the output shaft. Since the 5th/Rev synchronizer hub is splined to the output shaft, torque is transmitted from the input shaft through the 5th drive gear, 5th driven gear, synchronizer sleeve and hub, output shaft, and into the differential (final drive) assembly.

Reverse

In reverse gear range, the 1st/2nd and 3rd/4th synchronizers are in neutral and the 5th/Rev synchronizer sleeve is moved toward the reverse gear blocking ring and the reverse gear on the output shaft. Since the 5th/Rev synchronizer hub is splined to the output shaft, torque is transmitted from the input shaft through the input shaft 1st drive gear, counter shaft 1st gear, reverse driven gear, synchronizer sleeve and hub, output shaft, and into the differential (final drive) assembly.