Compressor failure

Tiny
BLESSING EWOBOR
  • MEMBER
  • 2012 LEXUS ES 350
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 175,434 MILES
Good morning, the vehicle was equipped with "compressor without magnetic clutch" now replaced to "compressor with magnetic clutch". The compressor was replaced not quite long after few days it failed (seeing some black substance in system) and there was refrigerant in the system. What could be the cause of these? What is the effect of replacing the compressor without magnetic clutch to compressor with magnetic clutch? Does it affect the vehicle overall performance?
Saturday, October 10th, 2020 AT 8:55 PM

7 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good morning,

The black substance is from the original failure.

https://www.2carpros.com/articles/how-a-car-air-conditioner-works

The system has to be completely flush out of all that debris. The dryer and expansion valve must be replaced as they are contaminated. The dryer is part of the condenser and the condenser must be replaced as well. They are one unit. I attached a YouTube video for you to view for this replacement.

https://www.youtube.com/watch?v=DuiFCUtjGMQ

The compressor needs to be replaced with the original compressor in order for the system to work correctly.

https://www.2carpros.com/articles/replace-air-conditioner-compressor

https://www.2carpros.com/articles/re-charge-an-air-conditioner-system

Roy

AIR CONDITIONING: COMPRESSOR: REMOVAL

1. Recover refrigerant from refrigeration system see: heating and air conditioning > removal and replacement > refrigerant

2. Disconnect cable from negative battery terminal

3. Remove front wheel rh

4. Remove front fender apron seal rh

5. Remove cool air intake duct seal see: front bumper > removal and replacement removal

6. Remove engine room side cover lh see: wiper motor > removal and replacement removal

7. Remove engine room side cover rh see: wiper motor > removal and replacement removal

8. Remove v-bank cover sub-assembly see: engine > removal and replacement > removal

9. Remove front wheel opening extension pad lh

10. Remove front wheel opening extension pad rh

11. Remove engine under cover lh

12. Remove engine under cover rh

13. Drain engine coolant see: coolant > component tests and general diagnostics

14. Remove air cleaner cap sub-assembly see: throttle body > removal and replacement > removal

15. Remove no. 2 air cleaner inlet

16. Remove no. 1 air cleaner inlet

17. Remove radiator grille protector see: front bumper > removal and replacement > removal

18. Remove front bumper assembly see: front bumper > removal and replacement > removal

19. Remove front bumper energy absorber

20. Remove millimeter wave radar sensor assembly (w/ dynamic radar cruise control system) see: distance sensor, cruise control > removal and replacement > removal

21. Separate radiator reserve tank hose see: radiator > removal and replacement removal

22. Disconnect radiator hose inlet see: radiator > removal and replacement > removal

23. Disconnect radiator hose outlet see: radiator > removal and replacement > removal

24. Disconnect no. 1 oil cooler inlet hose see: radiator > removal and replacement > removal

25. Disconnect no. 1 oil cooler outlet hose see: radiator > removal and replacement > removal

26. Remove radiator support upper see: radiator > removal and replacement > removal

27. Remove fan shroud see: radiator > removal and replacement > removal

28. Remove radiator assembly see: radiator > removal and replacement > removal

29. Remove v-ribbed belt see: drive belt > removal and replacement > removal

30. Remove generator assembly see: alternator > removal and replacement > removal

31. Disconnect no. 1 cooler refrigerant discharge hose

Remove the bolt and disconnect the No. 1 cooler refrigerant discharge hose from the compressor and pulley.

imageOpen In New TabZoom/Print

Remove the O-ring from the No. 1 cooler refrigerant discharge hose.

NOTICE:
Seal the openings of the disconnected parts using vinyl tape to prevent entry of moisture and foreign matter.

32. DISCONNECT NO. 1 COOLER REFRIGERANT SUCTION HOSE

Remove the bolt and disconnect the No. 1 cooler refrigerant suction hose from the compressor and pulley.

imageOpen In New TabZoom/Print

Remove the O-ring from the No. 1 cooler refrigerant suction hose.

NOTICE:
Seal the openings of the disconnected parts using vinyl tape to prevent entry of moisture and foreign matter.

33. REMOVE COMPRESSOR AND MAGNETIC CLUTCH

Disconnect the magnetic clutch connector.

Remove the 4 bolts.

imageOpen In New TabZoom/Print

Remove the compressor and magnetic clutch.

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Sunday, October 11th, 2020 AT 4:45 AM
Tiny
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  • 662 POSTS
Good morning, if the condenser, expansion valve, compressor and dryer are be replaced. What is left to be flushed? LoL
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Monday, October 12th, 2020 AT 5:51 PM
Tiny
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What should be used to flush the system?
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Monday, October 12th, 2020 AT 6:09 PM
Tiny
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If the black substance is from the original failure, does it mean that the replaced compressor is still good condition?
Is there any test for compressor?
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Monday, October 12th, 2020 AT 6:15 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
The evaporator and the lines are left.

The black stuff has contaminated the new compressor and it needs to be replaced as well.

As far as flusing, they make flush kits for cleaning the lines and the evaporator. If you do not get all that stuff out, you will contaminate the new parts as well.

Roy
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Tuesday, October 13th, 2020 AT 4:36 AM
Tiny
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Thank you.
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Wednesday, October 14th, 2020 AT 7:36 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
You are welcome.

Always glad to help.

Roy
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Thursday, October 15th, 2020 AT 1:19 AM

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