I ordered a new ECT sensor for my 1990 740GL regina non-turbo
(the on board diagnostics had told me it was bad plus the temperature takes awhile to get up to operating temperature of late - I also order the thermostat, but figured I'd fix the sensor first),
but before I take out the old one I need to know if I am suppose to put some type of silicon or resin on the new one before you put it back in the block? Also, do you have to drain some of the coolant?
Hopefully you can give me a break on some of the things that most mechanics know because it's my first car I've worked on, but I've had success with the help of the brickboard members and the FAQs.
Thanks in advance,
Paul
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1990 740 GL 293.2k miles
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