THERMOSTAT 1.8vvt sri?

[Mart2823]

Anyone replaced the thermostat on the 1.8vvt? If so where did you get new one? Was speaking to vauxhall today and was told it comes in two parts at quite a cost. Not sure if its thermostat - temp goes up in traffic but on open roads it drops quickly and usually doesnt go back up.

[dannyjpuk]

Anyone replaced the thermostat on the 1.8vvt? If so where did you get new one? Was speaking to vauxhall today and was told it comes in two parts at quite a cost. Not sure if its thermostat - temp goes up in traffic but on open roads it drops quickly and usually doesnt go back up.

Lol check out my previouse posts lol I want to find out too

[wallace78]

i changed mine when i had a 1.8 vectra got it of ebay easy enough job i think theres a how 2

[Mart2823]

Found the how2 for the z18xe engine. Was it the electronic thermostat on your engine?

[vectra ste]

hi ive got a 1.8 ls 04reg the temperature gauge would only go to 75.but when you are stuck in traffic it would rise to 90. when you are out of traffic and on a run the needle would drop back to 80. what made it worse when you put the heater button on 2 or 3 the needle would drop down to a flat 70.you still get heat but not hot.i fixed it by getting a new thermostat and now the needle rises up between 87 and 89 and stays there.also the heater is a major improvement and so is the mpg . my mileage in on 53654 i hope this helps

[Mart2823]

I am getting really good mpg and heater seems fine. Its just the gauge reading that doesnt seem right sometimes.

[vectra ste]

I am getting really good mpg and heater seems fine. Its just the gauge reading that doesnt seem right sometimes.

does your gauge take ages to rise to 87-89

[Mart2823]

Not 100% sure. Pretty sure it isnt the same any day but in traffic it doesnt take long, and on long distance trips it varies.

[vectra ste]

[QUOTE=vectra ste;1662981]does your gauge take ages to rise to 87-89[/QUOTE

when you start your car from cold tomorrow turn the heater off if the gauge has not reached 87 to 89 in 3 minues
the needle should stay there and hardly move
if the needle lies flat its faulty the garage changed my thermostat and is fine now
whats your mileage on?

[Mart2823]

Its at the 68000 mark. Was your engine the 1.8vvt z18xer? It seems to be electronic thermostat and costs around £70 in this engine.