Low temp gauge [Expired Topic]

Discussion in 'Chevy Suburban Forum (GMC Yukon XL)' started by BigWhite2500, Sep 15, 2006.

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  1. BigWhite2500

    BigWhite2500 New Member

    Hey guys I got a 93 2500 burb with a 5.7 350 The temp gauge is reading very low and I know its not that low. What would you check first? Gauge? sensor? Is there a way to test either of these? or just replace sensor then go from there?
    Another question is this the dash lights in the guage cluster it looks like there is a light out? The top half of the cluster is lit up well the bottom half is dark. Anyone ever replace these bulbs? Need to know how to do this too.
    Thanks in advance for your help.
     
  2. unplugged

    unplugged Epic Member 5+ Years 1000 Posts

    Re: Low temp gauge

    I've got a 93 burb too. (1500) I don't have a temp problem, but awhile back when I had a leaky radiator and the gauge registered low when it didn't have any contact with the coolant. So check to make sure your coolant is topped off, then I'd start with the sender, since it is the easiest to get to.
     
  3. 84fiero123

    84fiero123 Epic Member 5+ Years 1000 Posts Platinum Contributor

    RE: Re: Low temp gauge

    Stop by your local department store.

    Pick up a candy thermometer, they even come in digital now.

    Set the thermometer right on the heater hose until it stops going up. That will give you the real temp. of the engine.

    From there you will know if the thermostat in the dash is reading right.

    Then if it is you need to check fluid levels, all not just antifreeze. Check oil, trans. fluid to.

    There is a way to check the sensors, I just can’t remember how right at the moment. Someone else will remember here I’m sure if not I will look it up tonight.
     
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