i gettin pretty annoyed lately with my cars overheating problem. and what makes it wierder is the temps only rise when driving up hill. just drawn a blank.

 

my old combi van did that 12 years ago, the rad was knackered, the old mans range rover bmw 2.5 dti did it aswell and that turned out to be headgasket after sniff test. both were fine cruising but high loads would overheat.

i assume youve checked/changed the stat ?

ive had a tractor do it aswell and stat was rusted solid half open, so would run super cool then slowly get hotter and hotter under heavy load.

 

iv a new stat to go in. was thinkin bout water pump as well to be on safe side.

 

is your fan kicking in,when it get's hot put the heaters on full problem solved

 

iv got my fans on an override switch in the car. and heaters in the car dont really make a difference.

 

have you checked the radiator hose is getting hot.

 

no not done that one. which hose (top or bottom)

i dont even have to be flooring it up hill even stationary on a hill it creeps up

 

my 07 astra van sits at around 83 but on a hill it goes to 90,is it actually over heating or is the temprature just rising.

do you have hot air out of the heaters?

 

the needle sits on the 'N' either when driving or sat on a hill