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Gas Gage problem

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by 1STK5, Oct 15, 2002.

  1. 1STK5

    1STK5 Registered Member

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    Gas Gage won't register completely full, what can I do to correct the problem?
     
  2. Tweetysuarus

    Tweetysuarus 1/2 ton status

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    Check the sending unit, It might be worn on the variable resister that sends the signal to the guage.
    Bill
     
  3. Muddytazz

    Muddytazz 1 ton status

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    You can also check the nuts that hold the gauge to the circuit tape behind the dash. If they become a little lose, can make the gauge read funny.
     
  4. dyeager535

    dyeager535 1 ton status Premium Member

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    If you've ever let it get really low, does it read the same amount under "E" that it does under "F"? (don't forget, GM typically put some "reserve" into the gauge reading)

    If someones monkeyed with the gauge, or the gauge itself is just "off" it can do that too.

    Mine never goes quite to "F", but I've never let it get so far down to tell where "E" really is.
     
  5. Chris87K5

    Chris87K5 1/2 ton status

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    The baffle could be loose inside your tank causing the float to not work properly. I had this problem.
     
  6. mattyblazer

    mattyblazer 1/2 ton status

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    The guage in my 87' reads full until there is 5 gallons left, so I have to watch it and top off the tank all the time.

    Matt
     
  7. Chris87K5

    Chris87K5 1/2 ton status

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    </font><blockquote><font class="small">In reply to:</font><hr />
    The guage in my 87' reads full until there is 5 gallons left, so I have to watch it and top off the tank all the time.


    [/ QUOTE ]

    That is exactaly what mine did until I put a new sender in it and fixed the baffle.....I would say that the baffle is causing your problem.
     
  8. TXsizeK5

    TXsizeK5 1/2 ton status

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    I put in a new sender and its still not reading over half!
    /forums/images/graemlins/angryfire.gif duno what it is... possibly the gauge but somtimes it reads past full!? I dont know beats me
     

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