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 MANUALSMAZDA1991PROTEGE 4WD, AUTOMATICREPAIR AND DIAGNOSISTRANSMISSIONAUTOMATIC TRANSDIAGNOSIS - F4A-EL, FA4A-L & G4AX-ELMECHANICAL TESTINGTIME LAG TESTTESTING
1991 Mazda Protege 4WD, Automatic
Time Lag Test: Testing
1991 Mazda Protege 4WD, AutomaticSECTION Testing
Start engine and shift from "N" to "D" and "N" to "R". Measure the time interval from moving the shift lever to when the shift shock is felt. Refer to the TIME LAG TEST SPECIFICATIONS table and the TIME LAG TEST EVALUATION table.
TIME LAG TEST SPECIFICATIONS
| Application Range | Time - Seconds |
|---|---|
| "N"-"D" | 0.5-0.6 |
| "N"-"R" | 0.6-0.7 |
TIME LAG TEST EVALUATION
| Application & Shift | Time | Possible Cause |
|---|---|---|
| "N"-"D" | More | Insufficient Line Pressure Forward Clutch Slipping One-Way Clutch No. 1 Slipping One-Way Clutch No. 2 Slipping |
| ..... | Less | "N"-"D" Accumulator Not Operating Properly Excessive Line Pressure |
| "N"-"D" HOLD | More | Insufficient Line Pressure Forward Clutch Slipping 2-4 Brake Band Slipping One-Way Clutch No. 1 Slipping |
| ..... | Less | 1-2 Accumulator Not Operating Properly Excessive Line Pressure |
| "N"-"R" | More | Insufficient Line Pressure Low-Reverse Brake Slipping Reverse Clutch Slipping |
| ..... | Less | "N"-"R" Accumulator Not Operating Properly Excessive Line Pressure |
RENDER: 1.0x
NO RELATED
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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.