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.

2007 Mazda B4000 Base, AutomaticFACTORY OEM SERVICE PROCEDURE

Cooling System Specifications

COOLING SYSTEM SPECIFICATIONS

Item	Specification
Cooling System Capacity
2.3L Manual Transmission	10.6L (11.2 quarts)
2.3L Automatic Transmission	10.3L (10.9 quarts)
3.0L Manual Transmission	14.4L (15.2 quarts)
3.0L Automatic Transmission	14.1L (14.8 quarts)
4.0L Manual Transmission	12.8L (13.5 quarts)
4.0L Automatic Transmission	12.5L (13.2 quarts)
Pressure Test
Cooling System	138kPa(20psi)
Cap	89-124 kPa (13-18 psi)
Thermostat Opening Temperature
Starts to Open	92°C (198°F)
Fully Open	106°C(223°F)

Factory Service Tools

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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.

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