Heater core flush L322

[agbuckle98]

Just put a new radiator in my Mom's '04 Range Rover. I cannot get any heat at all from the heater. I was going to flush the heater core and it looks like 3 lines going to it. I looked in RAVE, sure enough, there are 3 lines off that heater core. Whats the deal? Anyone familiar with this system?

 

[carlosz]

you need a vaccum lift pump to fill that cooling system and avoid air pockets, other than that I cannot think of different way to assure proper results.

 

[ptschram]

I'm sure there is an appropriate way to do this, but there is an auxiliary water pump (just like similar BMWs) that runs the fluid through the heater core, it is near the frame rail, left side of engine compartment. If one were to jumper power to the pump, you'd be sure of having coolant flowing through the heater core.

 

[MontrealRR90]

you need a vaccum lift pump to fill that cooling system and avoid air pockets, other than that I cannot think of different way to assure proper results.

i know this is a little simple but just let the truck run without the coolant cap and the air will evevtually come out no ? i have done that hundres of times we have a lub shop and do coolant flushes and sometimes a little air gets in and we do that and 99% of the time it works. By the way the 03 RR with the a supposelively blown engine is exactly like that that we cured it ?

 

[ptschram]

Refill
1. Close radiator drain tap and remove tube.
2. Using a new sealing washer, fit cylinder block
drain plug and tighten to 25 Nm (18 lbf.ft).
3. Connect battery earth lead.
4. Connect exhaust extractor to tail pipes.
5. Remove bleed screw from expansion tank.
6. Fill cooling system, keeping coolant to neck of
expansion tank until a steady stream of coolant
is emitted from bleed screw hole. Fit and tighten
bleed screw.
7. Fit coolant expansion tank cap.
8. Run engine until normal operating temperature
is reached.
9. Switch off engine and allow to cool.
10. Check for leaks and fill expansion tank to 'MAX'
mark.
11. Clean coolant from body and surrounding area.
12. Fit undertray.
+ EXTERIOR FITTINGS, REPAIRS,
Undertray - front.