Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSJAGUAR1991XJ-6 L6-4.0LREPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGSERVICE AND REPAIRGENERAL SYSTEM PROCEDURESFLUSHING THE SYSTEM
1991 Jaguar XJ-6 L6-4.0L
Flushing the System
1991 Jaguar XJ-6 L6-4.0LSECTION Flushing the System
Flushing
Flushing the system is an essential function which must be carried out if the system has:
- Suffered component or pipe rupture leading to a refrigerant discharge.
- Suffered component failure leading to the possibility of contamination of the system.
- The system has been left in a uncapped condition for longer than eight hours.
- If the system has remained open for more than eight hours, the dryer bottle must be renewed and a 20 minute evacuation must be carried out in addition to the flushing procedure.
Follow the instructions of the manufacturer of the equipment being used.
Flushing the system is an essential function which must be carried out if the system has:
- Suffered component or pipe rupture leading to a refrigerant discharge.
- Suffered component failure leading to the possibility of contamination of the system.
- The system has been left in a uncapped condition for longer than eight hours.
- If the system has remained open for more than eight hours, the dryer bottle must be renewed and a 20 minute evacuation must be carried out in addition to the flushing procedure.
Follow the instructions of the manufacturer of the equipment being used.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.