[SSSIERA]

on my wt sierra am i gona have to drain the radiator inorder to change the temperature sender on the water pump.

[BlueSuzy]

Can't just quickly swap it over?

Temp sender in water pump??

[SSSIERA]

im prety sure its the water pump lol im still learning about cars lol. im used to dirtbikes hahah.

its on the front left side of the engine (1.3litre) when ur standing infront of the car looking at the engine about 10-15 cms behind the left edge of the radiator. im thinking i should probably just be able to jack that side of the car up. hopfully and quickly change like u said. i just filled it up with coolant

[zooky08]

Temp sender is screwed into thermostat housing

[SSSIERA]

dose this mean when i pull it out coolant isnt gona piss out everywere all over my parents driveway

[zooky08]

Won't be much pressure in the lines and the sender is pretty much neally the highest point so it might drible out.
Nothing a finger can fix

[SSSIERA]

awsome thanks for that.

[madmacca]

take your radiator cap off to release any pressure then put it back on before you remove the sender .
(putting it back on will slow the coolant down being released)
also put a bit of thread tape on the new sender

[SSSIERA]

ok awsome thanks for the help guys shall do it tomorrow

[SuziBlu]

Do it when cold, you will lose bugger all, be quick, and a few drops, no more will leak out.

There will be no pressure inside the water column, and also the whole thing is sealed, so a 1/4bsp ( I think) hole should be able to stay open an hour without any significant leakage.

[christover1]

I did mine that way, only prob was an air lock formed in cooling system. Running engine with rad cap off for a while fixed that.

[SSSIERA]

how did u tell that an air lock had formed

[christover1]

SSSIERA wrote:

how did u tell that an air lock had formed

Mines a Vitara EFI, it had erractic idle and missing.
Probably never happen in a sierra, different set up.
Should be fine.