Contents: 31 Switching to the desired range… ↧ 32 The transfer case makes noise in… ↧ 33 On all-wheel drive vehicles, the… ↧ 34 Transmission oil leaks from the… ↧
31 Switching to the desired range does not occur
1. Failure of the selector switch (see chapter 7B).
2. Failure of the control unit (see chapter 7B).
3. Lack of or inappropriate type of lubricant. Replace or top up the transmission oil according to the required type (chapter 1).
4. Excessive wear or damage to transfer case components. The case may need to be removed and repaired by contacting a service station with the appropriate level of qualification.
5. Malfunction in the front axle electrical system or automatic transfer case. Check diagnostic trouble codes (chapter 6).
32 The transfer case makes noise in all gears
Insufficient level or incorrect type of transmission oil. Add or change oil (chapter 1).
33 On all-wheel drive vehicles, the downshift occurs or noise appears when it is engaged
1. Fork splitting, bearing wear, or fork jamming in the guide.
2. Malfunction in the front axle electrical system or automatic transfer case. Check diagnostic trouble codes (chapter 6).
34 Transmission oil leaks from the outlet or leaks through the output shaft seals
1. Overfilling the box. Drain the required amount of oil (chapter 1).
2. The bypass hose is clogged or kinked. Clean or replace the hose.
3. Incorrect installation or failure of the secondary shaft seal. Replace the seal and ensure that there are no grooves or chips on the sealing surface.
[The article is based on data from the website «ChevyMan.ru»]