Ok here's the deal, last year I bought my SHO in the summer time and had no problems with it. But when winter hits and starts to get in the 50's again like it is the stupid speedo bounces and the ABS light comes on time to time. But this ONLY happens when it's cold never when it's hot like in the summer. So do you guys think it's the wheel sensors or what? I would take it to Ford but I bet they'll charge me $100 just to dignose whats wrong 
