How to Replace the Alternator on a Chevy S

Step-by-Step Guide

1. 1

   Step 1: Verify whether your Chevy S10 has a faulty alternator.

   Assume that the alternator is not properly charging if the reading is below 14, or higher than
   14.3. , Recheck the reading on the voltmeter.
   
   The charge shouldn't drop below a reading of
   13. , Recheck the reading on the voltmeter.
   
   With the electric devices running and the engine running at 2000 RPM, the voltage should read
   14. ,,,, Assume that there is a problem with the wiring or circuitry system if the readings differ by more than
   0.3. ,,,,,,,,,,,,,,,,,,,,,,
2. 2

   Step 2: Access a voltmeter and start the truck.

3. 3

   Step 3: Make contact to the battery with the voltmeter and look for a reading of 14.2.

4. 4

   Step 4: Turn on the lights and the radio.

5. 5

   Step 5: Depress the gas pedal until the tachometer reads 2000 RPM.

6. 6

   Step 6: Test the wiring if the charges aren't in the proper range

7. 7

   Step 7: as the voltage reading alone doesn't fully diagnose a faulty alternator.

8. 8

   Step 8: Assure that the vehicle is still running.

9. 9

   Step 9: Make contact between the rear of the alternator and the voltmeter and check the reading.

10. 10

    Step 10: Connect the voltmeter to the positive battery anode and check the reading.

11. 11

    Step 11: Proceed with the following steps when you have confidently diagnosed a bad alternator.

12. 12

    Step 12: Detach the vehicle's negative battery line.

13. 13

    Step 13: Assure that the battery cable remains completely separate from the battery throughout the repair procedure.

14. 14

    Step 14: Disengage the serpentine belt from all applicable components.

15. 15

    Step 15: Rotate the belt tensioner counter-clockwise

16. 16

    Step 16: using an appropriately sized socket wrench.

17. 17

    Step 17: Pull the belt from the pulley when the tensioner is sufficiently loose.

18. 18

    Step 18: Access the wiring harness

19. 19

    Step 19: which is attached to the back of the alternator.

20. 20

    Step 20: Dislodge the clamp portion of the primary connector by pressing on the tab.

21. 21

    Step 21: Pull the primary wire away from the alternator.

22. 22

    Step 22: Remove the nut from the secondary connector.

23. 23

    Step 23: Pull the secondary wire away from the alternator.

24. 24

    Step 24: Use appropriately sized socket wrenches to dislodge the 3 mounting bolts from the alternator.

25. 25

    Step 25: Lift the alternator away from the engine bay.

26. 26

    Step 26: Position the new alternator into the support clamp.

27. 27

    Step 27: Tighten the mounting bolts to the proper torque.

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    Step 28: Reconnect the secondary cable to the alternator by reengaging the nut.

29. 29

    Step 29: Pull back the tab from the primary cable

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    Step 30: and then reconnect that wire.

31. 31

    Step 31: Push the wire in until the tab locks.

32. 32

    Step 32: Rotate the belt tensioner counter-clockwise once again.

33. 33

    Step 33: Replace the serpentine belt

34. 34

    Step 34: referring to the routing guide

35. 35

    Step 35: which is affixed near the radiator.

36. 36

    Step 36: Reconnect the negative battery line.

37. 37

    Step 37: Start the truck to confirm proper installation.

Detailed Guide

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