2 or 3 pins CTS diff?
from our local carparts shop I have found out that for my Vectra X16xel they have 2 CTS on stock, on with 2 pins and one with 3 pins. I think mine is with 2 pins but what's the difference between these 2?
The X16XE in the Corsa uses a two pin CTS, so its a safe bet to assume that the XEL does too.
The three pin variety probably has a grounded shield like the crank sensor cable.
any things to consider when replacing a CTS?
or is just as simple as 1-2-3
Do it quickly to minimise coolant loss. You may have to bleed a bit of air from the system afterwards, although unlikely.
If you do, just run the engine with the expansion tank cap off (do not do this on a hot engine) for a few minutes to let the water circulate.
I thought the black 3 pin one is for cars with air con?
Aha....good point, never thought about that!!!