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(DIY) How to Replace the A/C Compressor in a '01 TL

Old 09-07-2011, 01:01 PM
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Default (DIY) How to Replace the A/C Compressor in a '01 TL

Hey guys,

The A/C compressor is one of the most crucial components in your TL's A/C system. Therefore, it is imperative that you promptly replace the part should it become dysfunctional. The following is a tasty write-up on replacing the A/C compressor on a '00-'03 TL:

1) If the compressor is marginally operable, run the engine at idle speed, and let the air conditioning work for a few minutes, then shut the engine off.

2) Make sure you have the anti-theft code for the radio, and the navigation system, then write down the frequencies for the radio's preset buttons.

3) Disconnect the negative cable from the battery.

4) Recover the refrigerant with a recovery/recycling/charging station.

5) Remove the intake manifold cover.

6) Remove the alternator.

7) For 200103 models, remove the compressor clutch connector (A) from the condenser fan shroud (B), then disconnect the compressor clutch connector. Disconnect the condenser fan connector (C), then remove the wire harness clips (D) from the condenser fan shroud. Remove the cruise control actuator cable (E) from the clamp.

8) Loosen the lower mounting bolt, then remove the upper mounting bolts and the condenser fan shroud. Be careful not to damage the radiator fins when removing the condenser fan shroud.

9) Detach the compressor electrical connector. Remove the bolt and the nut, then disconnect the suction line and discharge line from the compressor. Plug or cap the lines immediately after disconnecting them to avoid moisture and dust contamination.

10) Remove the mounting bolts and the compressor. Be careful not to damage the radiator fins when removing the compressor.

11) If necessary, remove the mounting bolts and the compressor bracket.

12) Installation of the compressor is the reverse of the removal procedure. Note the following:

Refer to the tightening specifications shown in the accompanying illustrations.
If you're installing a new compressor, you must calculate the amount of refrigerant oil to be removed from it.
Replace the O-rings with new ones at each fitting, and apply a thin coat of refrigerant oil before installing them. Be sure to use the right O-rings for HFC-134a (R-134a) to avoid leakage.
Use refrigerant oil (DENSO ND-OIL 8) for HFC-134a DENSO piston type compressor only.
To avoid contamination, do not return the oil to the container once dispensed, and never mix it with other refrigerant oils.
Immediately after using the oil, reinstall the cap on the container, and seal it to avoid moisture absorption.
Do not spill the refrigerant oil on the vehicle; it may damage the paint; if the refrigerant oil contacts the paint, wash it off immediately.
Be careful not to damage the radiator fins when installing the compressor and the condenser fan shroud.
Evacuate the system.

13) Charge the system.

14) Enter the anti-theft code for the radio, and the radio presets.

**Additional diagrams**

TL A/C Compressor diagram
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