ok so I can ground out the sending unit and it pegs the temp guage to HOT... but when engine running and warm dosent register anything...<br /><br />I have replaced the sending unit and same results... <br /><br />guage seems to be working... <br /><br />engine is mercruiser 470 in a 88' four winns<br /><br />any ideas?
<br /><br />thanks <br />kid