Astra 1.8 thermostat?

SLITHER99

Hi

This is my parents car. It's a 1.8 Astra SRi Petrol, 2003, 100k miles.

I just noticed that when driving, the temperature gauge is flat zero. If you leave the car sit, the temp gauge rises steadily. This would usually suggest to me a bad thermostat.

Only thing is, the heaters are still hot whether you are sat or if you are driving. Is my diagnosis of a bad thermostat still right?

GAZ237

SLITHER99 wrote: »

Hi

This is my parents car. It's a 1.8 Astra SRi Petrol, 2003, 100k miles.

I just noticed that when driving, the temperature gauge is flat zero. If you leave the car sit, the temp gauge rises steadily. This would usually suggest to me a bad thermostat.

Only thing is, the heaters are still hot whether you are sat or if you are driving. Is my diagnosis of a bad thermostat still right?

Sounds like the thermostat is stuck open.

Quite common to happen on this engine.

Take it out and put it in boiling water.

Either way replace it as its the cheapest option.

Strider590

Yes thermostat for sure, I need to do mine...... Only problem is getting the coolant out, apparently theres a valve (which I can't find) and I don't want to remove the hose clips because it's been about 10 years since I came across a decent jubilee clip (one that doesn't tear itself up and spring open).

Flying-High_2

Should be a Z18XE engine... Easy enough to do with minimum coolant loss... ZX18 stats usually come as a unit with the Housing....2 Bolts to undo , off gasket on ad 2 bolts...Really straightforward.

SLITHER99

Grand, I just wanted to make sure. It was the fact the heaters didn't cold up that threw me. The last few cars I've had which have needed new Thermostats all had cold heaters.

closed

any signs of coolant loss, dirty coolant, gunk on oil filler cap, steamy exhaust

is the radiator getting hot, after a journey, or after a standstill with engine running

GAZ237

closed wrote: »

any signs of coolant loss, dirty coolant, gunk on oil filler cap, steamy exhaust

is the radiator getting hot, after a journey, or after a standstill with engine running

Are you always late to the party?

Also in your 9000+ posts, do you actually read what the OP posts or any replies?.

mum2one

Mine has done the same I.ve got 02 astra sxi - would it be a garage job ?
x

closed

GAZ237 wrote: »

Also in your 9000+ posts, do you actually read what the OP posts or any replies?.

If you're so interested, read them

SLITHER99

mum2one wrote: »

Mine has done the same I.ve got 02 astra sxi - would it be a garage job ?
x

Normally, if it was my own car, I'd order one from Euro Car Parts and get going.

But, this one needs the cambelt kit done as well as it's due and it's my parents car and I'd rather not mess with it as their reliant on it and I'm a hack! So this will be a garage job methinks!

If you're a bit handy, have a go yourself

OddballJamie

You're lucky, the next shape Astra doesn't even come with a temperature gauge. Although I do have an app for that.