Symptom #4
WARNING: This page is about a different car, the 2002 Jaguar XKR and 2002 Jaguar XK8. However, it is still accessible from the selected car via links, so may be relevant.
Noisy system
Possible Source(s):
- Loose or damaged compressor drive belt
Action(s) to take:
- Adjust or renew
Possible Source(s):
- Loose compressor mountings
Action(s) to take:
- Check for damage, tighten to specification if OK
Possible Source(s):
- Compressor oil level low
Action(s) to take:
- Look for evidence of leakage and rectify as required
Possible Source(s):
- Compressor internal damage
Action(s) to take:
- Check for debris, renew compressor and receiver drier
Possible Source(s):
- Blower motor noise
Action(s) to take:
- Renew motor (assuming no fan interference)
Possible Source(s):
- Excessive refrigerant charge
Action(s) to take:
- Check for vibration or 'thumping' in high pressure line; may be witnessed by high pressure on both HIGH and LOW sides. Recover / recharge
Possible Source(s):
- Low refrigerant charge
Action(s) to take:
- Check for 'hissing' at expansion valve; may be witnessed by low HIGH side pressure. Recover / recharge
Possible Source(s):
- Moisture or air in the system
Action(s) to take:
- Check system pressures
Possible Source(s):
- Heater circuit air-lock
Action(s) to take:
- Refer to COOLING SYSTEM DRAINING, FILLING AND BLEEDING - VEHICLES WITHOUT: SUPERCHARGER or COOLING SYSTEM DRAINING, FILLING AND BLEEDING - VEHICLES WITH: SUPERCHARGER for fill / bleed procedure.
Possible Source(s):
- Suction pipe touching bank 1 (A) cylinder head rubber isolator missing)
Action(s) to take:
- Check the pipe cluster for correct fitting