I have spent 4 days tinkering with an old F Reg ford transit i bought its a
2.0 Litre petrol and all i get out the heaters is luke warm air sometimes cold, ive changed the thermastat, flushed the whole system with radfluch twice, cleaned and checked all the pips but still luke warm air, it defies reason, the engine temp sits half way at normal, the water in the radiator is very hot, all the pipes feel hot can anyone work this out, im at my wits end, i think its the same as a sierra type engine? but theres just no hot air comming out the blowers even when on full blast and sitting on idle for an hour.Any ideas
Signed Baffled.