I would double check that connector.
I don't know which kind is used in 3.0i expansion tank,but the one in 4.4i is sort of fragile and consists of two leads with a resistor of some sort connected to them.Those leads look like they can get bent and touch close to the base.
It's just my guess.
Quote:
Originally Posted by JonbmwX5
Hi do you know whete its is located? There was a sensor at the bottom of the coolant tank? I connected this back in seem to click in ok
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