Which one would u reccomend getting then?! Pump i mean, got it ages ago, were talkin ermmm may time?! but has only done about 2000miles.

Yea thats what i was aiming at, the matrix being blocked causing the back pressure!! will know tomorrow when i bridge the 2 pipes

For the fan switch and heater not to be working theres an obvious elec prob, are there relays for em both as the fuse for the blower is fine despite it not working and cant see a fuse for fan switch?! Theres loads in the fusebox but none are marked up. For now just need to eliminate this back pressure so fingers crossed its the matrix, wheres neo when u need him