Service Cautions: Dynamometer

2010 Mazda 5 Sport, 2.3 L, StandardSECTION Dynamometer
WARNING: This page is about a different car, the 2004 Mazda MPV. However, it is still accessible from the selected car via links, so may be relevant.
  • When inspecting and servicing the power train on the dynamometer or speed meter tester, pay attention to the following:
    • Place a fan, preferably a vehicle-speed proportional type, in front of the vehicle.
    • Make sure the vehicle is in a facility with an exhaust gas ventilation system.
    • Since the rear bumper might deform from the heat, cool the rear with a fan. (Surface of the bumper must be below 70 degreesΒ  .)
    • Keep the area around the vehicle uncluttered so that heat does not build up.
    • Watch the water temperature gauge and don't overheat the engine.
    • Avoid added load to the engine and maintain normal driving conditions as much as possible.
    NOTE:
    • When only the front wheels are being rotated on the dynamometer, the ABS warning light could illuminate. If the ABS warning light illuminates, turn the ignition switch to the LOCK position, then turn it back to the ON position, run the vehicle at 10km/h and check that the ABS warning light goes off. (In this case, a DTC will be stored in the memory. To delete this data from the memory, follow the procedure for deleting DTCs (ABS) from memory.) (See PRECAUTION to turn off the warning light.)
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.