The temp sensor and the temp sensor connector should be blue. If you
have a new sensor and new o-ring ready just leave the harness connector
on the old one while you pull the old sensor out and put in the new
sensor right away to reduce coolant loss. Then fiddle with getting the
connector off the old one while it is in your hand. If the connector
doesn't have the raised metal wire release that gets pushed in to
release then you may have to pry the ends of the metal wire piece out to
release the connector. Again, doing this while you have it out where you
can see it is the way to go.

I hope you are not just swapping parts as a shot in the dark. The
quality of some new parts is so low that you are much better off leaving
a working original part unless you have a good reason to change it.
There are still new genuine Bosch versions of the sensors around but a
certain other brands may be questionable.

Mark

David M wrote:
> Anyone got any tips on how to remove the electrical connector? Is there some secret trick? Mine refuses to budge. I desperately need to replace this thing so I can get my van through emissions.
>
>
>
> ________________________________
>