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 MANUALSMAZDA1993MX-3 V6-1844CC 1.8L DOHCREPAIR AND DIAGNOSISTRANSMISSION AND DRIVETRAINAUTOMATIC TRANSMISSION/TRANSAXLETESTING AND INSPECTIONINITIAL INSPECTION AND DIAGNOSTIC OVERVIEWROAD TESTL RANGE TEST
1993 Mazda MX-3 V6-1844cc 1.8L DOHC
L Range Test
1993 Mazda MX-3 V6-1844cc 1.8L DOHCSECTION L Range Test
Shift Pattern
1. Shift the selector lever to L range.
2. Accelerate the vehicle and verify that the 1-2 upshifts and downshifts are obtained and that no 3rd gear, O/D, or lockup is obtained.
3. Check the upshifts for shift shock and slippage in the same manner.
4. Decelerate the vehicle and verify that engine braking effect is felt in 2nd gear.
5. Select the hold mode.
6. While driving in S range (Hold) 2nd gear, shift the selector lever to L range and verify that 2nd gear is held until the 2-1 downshift point, as shown in the L range (Hold) shift diagram, is achieved.
7. Accelerate the vehicle in L range (Hold) and verify that 1st gear is held.
8. Decelerate the vehicle and verify that engine braking effect is felt.
Noise and vibration
NOTE: Abnormal noise and vibration can also be caused by the torque converter, drive shaft, or differential. Therefore, check for the cause thoroughly.
Drive the vehicle in 1st gear (Hold) and check for abnormal noise and vibration.
1. Shift the selector lever to L range.
2. Accelerate the vehicle and verify that the 1-2 upshifts and downshifts are obtained and that no 3rd gear, O/D, or lockup is obtained.
3. Check the upshifts for shift shock and slippage in the same manner.
L Range Shift Diagram (B6 SOHC Engine):
L Range Shift Diagram (K8 DOHC Engine):
4. Decelerate the vehicle and verify that engine braking effect is felt in 2nd gear.
5. Select the hold mode.
6. While driving in S range (Hold) 2nd gear, shift the selector lever to L range and verify that 2nd gear is held until the 2-1 downshift point, as shown in the L range (Hold) shift diagram, is achieved.
7. Accelerate the vehicle in L range (Hold) and verify that 1st gear is held.
L Range (Hold) Shift Diagram (B6 SOHC Engine):
L Range (Hold) Shift Diagram (K8 DOHC Engine):
8. Decelerate the vehicle and verify that engine braking effect is felt.
Noise and vibration
NOTE: Abnormal noise and vibration can also be caused by the torque converter, drive shaft, or differential. Therefore, check for the cause thoroughly.
Drive the vehicle in 1st gear (Hold) and check for abnormal noise and vibration.
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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.