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 MANUALSMAZDA20105 SPORT, 2.3 L, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 143 (HVAC SYSTEM)REFRIGERANT SYSTEMREFRIGERANT PRESSURE CHECK
2010 Mazda 5 Sport, 2.3 L, Standard
Refrigerant Pressure Check
2010 Mazda 5 Sport, 2.3 L, StandardSECTION Refrigerant Pressure Check
WARNING: This page is about a different car, the 2004 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
- Install the manifold gauge set.
- Warm up the engine and run it at a constant 1,500 rpm.
- Set the fan switch to 4th speed.
- Turn the A/C switch on.
- Set the RECIRCULATE mode.
- Set the temperature control to MAX COLD.
- Set the VENT mode.
- Close all the doors and all the windows.
- Measure the ambient temperature and the high and low-pressure side reading of the manifold gauge.
- Verify that the intersection of the pressure reading of the manifold gauge and ambient temperature is in the shaded zone.
- If not as specified, troubleshoot the refrigerant system. See TROUBLESHOOTING INDEX .
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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.