Hi, somewhere early this year, around January or February, a friend borrowed the van to Auckland about 6 hours drive from my place, Hawera. He on the air condition , the van overheating, he brought to the near by mechanic and they changed the thermostat, at that time there was no leaking with the water pump. Thank you !
The impellors in the water pump are prone to corrosion,especially if no or incorrect radiator additives have been used .this will cause water to stay in motor & boil whilst the water in the radiator stays cold because it cannot circulate.try flushing radiator ,installing a new thermostat (which is more than likely not opening )& radiator cap,refil with correct additive,.if the car still over heats then you will need to replace the water pump.bugger!!
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Hi, I have replaced new water pump, replace new thermostat,found out there was no thermostat,guess the mechanic in Auckland let it run without thermostat. Radiator flushed, filled up with green (ready to add) coolant,problem still not solve. Next thing to check or replace is radiator cap and the fan. Thank You !
hi i hope the head is not damaged
first remove themostat and try without this will eliminate air locks in engine drive car for a while and see if any changes in temp
also check oil on dip stick and under oil cap to see if its creamy looking do these things first and get back to me
Also know as steamers .... Rads Block very quickly because of no Antifreeze in the water cooling circuit only needs a one to five tubes blocked in the rad core to induce over heating .... Glycol in the coolant also make the cooling more efficient and stops bi metal corrosion which in turn blocks the rad .... You only have to see the blocked rads at Smash Palace LOL 20 over heats plus per week in peak winter and summer over heats season .. the issue is more the rad design enough to cool when every thing is good but not when blocked .... Same action on the silica Terraces in thermal areas i.e. cooling fluid deposits solution chemicals in the rad tubes
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