Hey people, The other week (last thursday) my mams car suddently started to run real bad, it had a REAL bad tapping sound, and was spluttering VERY badly, even when just ticking over... She put it in the garage, and they changed some cables on it, saying that it was miss firing, but as soon as she got it home, it was worse... Its started to over heat, just ticking over, like, VERY rapidly! Withing just picking me up from louises house, it was in the red on the temperature guage... We're baffled about whats happening... Does anyone know whats happening?