Many drivers have experienced the clutch pedal sticking when a 2011 Mustang is paired with the MT-82 manual transmission. Between gears, the pedal is slow to return to the top position; as you can imagine this is quite inconvenient. Why does this happen? Well, a lot of people find that removing the assist spring is a “quick fix” for the issue. Because of this, logic would suggest the issue to be in the pedal assembly itself. After many complained about the issue, Ford issued a fix, which was a revised pedal assembly and bracket.
There are, in fact, a few fixes out there for this problem. First and foremost, as previously mentioned, Ford issued a technical service bulletin regarding this issue. In their TSB, their service procedure to rectify this issue is to replace the pedal assembly and bracket with revised versions, carried out by an authorized Ford dealer. Aftermarket vendors are saying to replace the stock assembly with that from a GT500, and all should be good. In fact, the ‘revised’ part by Ford is most likely a GT500-style assembly (which uses a different spring-assist technique).
There is also the do-it-yourselfer option of removing the helper spring altogether. Many owners have done this and reported it has solved the problem. However, doing this will change the pedal feel, making it stiffer and requires more effort. It is not known what Ford’s stance is on this method. It may or may not void the warranty.
Though this does address the issue, it doesn’t fix the actual problem. The issue makes itself apparent when the engine nears its redline. Seeing as a popular modification is to raise the rev limiter, drivers are able to dance around with higher RPMs than stock settings would allow. The real issue is the stock pressure plate. It’s only designed to keep up with so much engine speed. Higher speeds keep the clutch from fully disengaging as quickly as it within moderate driving conditions. Mustang owners with a lead foot facing this issue shouldn’t look to the pedal assembly for a fix. Instead, they should invest in a proper clutch pressure plate better suited for their aggressive driving styles.