Tag: gas pedal
One of the lingering concerns over the Toyota recall is whether Toyota’s “precision steel” shim fix to the recalled CTS gas pedal assembly will be a reliable long-term solution. Our analysis indicates that these questions might be well-founded, and we’re not the only ones concerned about the viability of Toyota’s proposed fix. In an interview with Toyota’s Jim Lentz yesterday evening, NPR asked why Toyota was using a redesigned pedal for new production, but only offering the shim fix to existing customers. Lentz insisted that the repaired pedals would be as good as the redesigned pedal, that the costs of repair and replacement were about the same, and that the main reason Toyota was repairing rather than replacing recalled pedals was the desire to “get customers back on the road… as quickly as we possibly can.” That’s when NPR went for the jugular.
Update: To see all of TTAC’s related articles on the subject of Toyota gas pedals, go here:
In yesterday’s post , we offered a bounty for anyone to open up both the CTS (bottom) and Denso (top) Toyota gas pedal assemblies. No one took us up, and no one anywhere else has done it, so we took it upon ourselves . Here they are, both e-pedal assemblies taken apart and examined, in our quest to understand if and what the significant differences are, and how Toyota’s possible “shim” fix would work. On initial observation, it appears that the CTS may be perceived as being the more solidly engineered/built unit, in that the pedal pivots on a traditional and solid steel axle whose bearings are brass or bronze sleeves. The Denso’s whole pivot and bearing surfaces are relatively flimsy-feeling plastic. But that can be deceptive, and we’re not qualified to judge properly if it is indeed inferior or superior. So the question that goes beyond the analysis of these e-pedals is this: are these units really the full source of the problem, or are they scape goats for an electronics and/or software glitch? Pictures and tear down examination and analysis follows:
Update #2: It’s clear to me now that the CTS unit I took apart already had the side cover plates (sheet metal) removed before I examined it. One can see where they fit, and are obviously intended to protect the exposed axle pivot and bushing seen above and below: