Quote:
Originally Posted by Ferdman
How did you determine that the radiator has good flow and isn't clogged? The fact that the engine overheats without the thermostat implies a blockage somewhere. The auxiliary water pump circulates water through the heater core so it provides heat faster than cars without one. It's not meant to increase engine cooling per se.
|
My 300 sd was like that the old rad was plugged, I can use my hand to feel around inside of the core, is stone cold on certain area, soon as I bought a good used one, all the night mare was over.
u need to backward flush the rad.