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.
2001 Mazda MPV ESFACTORY OEM SERVICE PROCEDURE
Spring Inspection: Specifications
CONTROL VALVE BODY SPRING SPECIFICATIONS
| Spring | Outer Diameter (mm {in}) | Free Length (mm {in}) | No. Of Coils | Wire Diameter (mm {in}) |
|---|---|---|---|---|
| Pressure Modifier Accumulator Spring | 8.2 {0.32} | 38.2 {1.50} | 16.5 | 1.2 {0.047} |
| 3-2 Timing Spring | 8.25 {0.325} | 35.4 {1.394} | 12.5 | 0.85 {0.033} |
| Cut Back Spring | 8.2 {0.32} | 29.8 {1.17} | 7.4 | 0.6 {0.02} |
| Bypass Spring | 6.3 {0.25} | 29.5 {1.16} | 11.7 | 0.6 {0.02} |
| Small 1-2 Accumulator Spring | 14.8 {0.583} | 81.6 {3.21} | 17.7 | 1.7 {0.067} |
| Large 1-2 Accumulator Spring | 20.2 {0.795} | 81.6 {3.21} | 12.5 | 2.3 {0.091} |
| N-D Accumulator Spring | 9.8 {0.39} | 52.9 {2.08} | 12.0 | 1.0 {0.039} |
| Small N-R Accumulator Spring | 7.2 {0.28} | 60.1 {2.37} | 26.2 | 1.0 {0.039} |
| Large N-R Accumulator Spring | 11.2 {0.441} | 56.0 {2.20} | 15.2 | 1.6 {0.063} |
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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