Some owners of 2019-2020 Mazda3 and CX-5 vehicles may complain about a surging at low speeds and during acceleration. This surging is in the longitudinal direction, felt about 2 cycles per second and occurs in the locked-up 1st gear.
Some owners of 2019-2020 Mazda3 and CX-5 vehicles may complain about a surging at low speeds and during acceleration. This surging is in the longitudinal direction, felt about 2 cycles per second and occurs in the locked-up 1st gear.
This may be caused by the torque fluctuation and the torsional resonance in the torque converter.
To correct this concern, the PCM software has been modified to reduce the torque fluctuation.
Reprogram the PCM using the Mazda Diagnostic and Repair Software (MDARS), refer to MDARS ECU reprogramming procedures.
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Information for Technical Service Bulletins comes from ProDemand, Mitchell 1's auto repair information software for domestic and import vehicles. Headquartered in San Diego, Mitchell 1 has provided quality repair information solutions to the automotive industry since 1918.
Mike Mavrigian has written thousands of automotive technical magazine articles involving a variety ofspecialties, from engine building to wheel alignment, and has authored more than a dozen books that crisscross the automotive spectrum. Mike operates Birchwood Automotive, an Ohio shop that builds custom engines and performs vintage vehicle restorations. The shop also features a professional photo studio to document projects and to create images for articles and books.
