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.
1983 Mazda GLC BaseFACTORY OEM SERVICE PROCEDURE
Check & Cut Valve
- Remove check and cut valve from lines. Connect a pressure gauge with "T" on nipple leading to fuel tank. Hold finger over opposite nipple. See Fig 1 .
- Blow through open end of "T" fitting. When pressure gauge reads .78-1.0 psi (.06-.07 kg/cm2 ), valve should open.
- Remove "T" fitting and gauge from fuel tank nipple and connect to nipple at bottom of valve (atmosphere vent). Valve should be located horizontally.
- Repeat test. Valve should open when pressure gauge reads .14-.71 psi (.01-.05 kg/cm2 ). If valve does not operate as described, replace check and cut valve.
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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