check a/f and check it isn't froze up
if ok
check the water pump drive belt (does the p/s work?)
if ok
thermostate
if it don't cure it
water pump drive, this will require a new water pump and p/s pump
as the p/s pump drives the water pump
you won't get away with just a water pump
if the drives ok is the impellar still on the water pump?
also check that the heater matrix isn't blocked and the electronic water valve for the heaters is working
and clear any snow away fron the air intake
water loss
hose/rad/heater matrix/oil cooler:-heat exhanger leaking
water pump seal leaking
or it could be just due to overheating the pressure build up will push it out of the cap's pressure valve
if you end up changing the water pump and you damage the p/s pump pipe union you can get the union as a spare (the spares dept will try to sell you a complete pipe)
if ok
check the water pump drive belt (does the p/s work?)
if ok
thermostate
if it don't cure it
water pump drive, this will require a new water pump and p/s pump
as the p/s pump drives the water pump
you won't get away with just a water pump
if the drives ok is the impellar still on the water pump?
also check that the heater matrix isn't blocked and the electronic water valve for the heaters is working
and clear any snow away fron the air intake
water loss
hose/rad/heater matrix/oil cooler:-heat exhanger leaking
water pump seal leaking
or it could be just due to overheating the pressure build up will push it out of the cap's pressure valve
if you end up changing the water pump and you damage the p/s pump pipe union you can get the union as a spare (the spares dept will try to sell you a complete pipe)
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