water temp gauge help please!!

Discussion in 'Forum Questions & Suggestions' started by 70 chev, Jun 6, 2011.

  1. 70 chev

    70 chev Member

    Joined:
    Jun 6, 2011
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    2
    Hi everyone I am new here and i have to say what a great forum.

    I am hoping someone out there can help me out.... my dad picked up a 1970 chev pickup 3/4 ton i believe(8 lug nuts) . Here is my problem..... the engine temp gauge is not working. Let me tell you what we have done so far. Replaced the temp sending unit on drivers side of engine. unhooked the green wire and grounded it out to the engine... temp gauge did not move, yes the key was turned on :rolleyes: hooked up a hotwire from the green wire that connects to the sending unit and checked see if we had power at the other end of the wire.(test light) test light lit up so we replaced the temp gauge with a new oem one. still not working. checked out the printed circut board on back of the ?????? gauges:confused: hooked up a hot wire from the battery and put it on the circut board where the green wire from the sending unit makes contact. checked with test light. has power to temp gauge through circut board:confused: Can any one help?????:eek: resistor maybe??
     

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