Dreaded Glow Plug Light

[emlynkide]

hi all, iv;e been having intermiten glow plug light flashing and then gowing into limp mode, so took my mondeo down to a garage where my two sons work as mechs. to put the car on a Bosch code reader, but the only fault that came up was for : pressure boost solenoid: as i dont like to hang around the garage for to long incase it upsets there boss, i left it at that, has anywhone had this problem if so where is it, and could it bring up the glow plug light, also i inspected the egr and it was absolutly chocker with gunge so have cleaned it up and i,ll see how things go from there, any clues i would be gratefull for