Dismiss Notice

Welcome To CK5!

Registering is free and easy! Hope to see you on the forums soon.

Score a FREE t-shirt and membership sticker when you sign up for a Premium Membership and choose the recurring plan.

does your gas gauge work??

Discussion in 'The Garage' started by copedrake, Jul 9, 2006.

  1. copedrake

    copedrake Registered Member

    Joined:
    Jul 18, 2005
    Posts:
    27
    Likes Received:
    0
    Location:
    san jose ca
    On my 85 sierra, it has two tanks and when either one of them are full( all 16 gallons each) the gas gauge only reads 1/2 way. the switch seems to work fine so it isnt getting stuck in between.

    I was going to check the senders, a bit expensive, but since they both seem to have the same problem, i am thinking it is the gauge.

    Ive had many old trucks, and they all seem to have problems with the gauges, especailly when we lift them. simular problems anybody? whats it like to change out the old gauge or put a different one in?
     
  2. readymix

    readymix 3/4 ton status

    Joined:
    May 30, 2004
    Posts:
    6,706
    Likes Received:
    26
    Location:
    Murrieta, California
    google "fix-a-gauge"
     
  3. copedrake

    copedrake Registered Member

    Joined:
    Jul 18, 2005
    Posts:
    27
    Likes Received:
    0
    Location:
    san jose ca
    i just ordered one and we will see how it works, have you ever used it?
     
  4. readymix

    readymix 3/4 ton status

    Joined:
    May 30, 2004
    Posts:
    6,706
    Likes Received:
    26
    Location:
    Murrieta, California
    No, but I have replaced the crystals from a donor gauge before.
    Last time I did it I just installed a whole gauge from a 79 into my 87. The color is different but I don't care....

    Be carefull when emoving the two nuts on the back of the gauge.
     
  5. oneofthefewbmx

    oneofthefewbmx 1/2 ton status

    Joined:
    Oct 6, 2004
    Posts:
    579
    Likes Received:
    0
    Location:
    Copperas Cove, TX
    i got a guage and sending unit from jc whitney for like 22 dollars...workes pretty good....
     
  6. copedrake

    copedrake Registered Member

    Joined:
    Jul 18, 2005
    Posts:
    27
    Likes Received:
    0
    Location:
    san jose ca
    i thought the sending unit was way more, from LMC truck.
    be careful with the nuts as to not drop them in the dash?
     
  7. thfonz98

    thfonz98 1/2 ton status

    Joined:
    Feb 19, 2005
    Posts:
    319
    Likes Received:
    0
    Location:
    Salinas, ca
    mine CONSISTANTLY is full about .5 inch past the full line and half tank is just right of the 1/2 line.

    91 k5
     
  8. Jishory

    Jishory 1/2 ton status

    Joined:
    Jan 8, 2002
    Posts:
    1,367
    Likes Received:
    0
    Location:
    Palmdale, CA
    mine works but it dances as the gas sloshes around
     
  9. hank14

    hank14 Registered Member

    Joined:
    May 2, 2005
    Posts:
    15
    Likes Received:
    0
    Location:
    Granbury, TX
    When my tank is full, the gauge reads way past full. When it is on 1/4 tank, it is nearly empty. I'm used to it, but would like for it to read more accurately.

    Also, when I'm low on fuel and turn corners or start uphill, it tries to stall and has died a couple of times. I assume the gas tank is not baffled properly, or do you think my fuel pump is malfunctioning?
     
  10. jimmy'sjimmy

    jimmy'sjimmy 1/2 ton status

    Joined:
    Dec 22, 2001
    Posts:
    130
    Likes Received:
    0
    Location:
    Greenwood Village, CO
    mine reads full and works great until it gets to 1/2 then i have to guess:crazy: my method is to turn a corner and goose it, if it putters and almost stalls its time for gas:wink1:
     
  11. longbedder

    longbedder 1/2 ton status Premium Member

    Joined:
    Oct 26, 2005
    Posts:
    4,195
    Likes Received:
    361
    Location:
    Ridgecrest, CA
    I've fixed a few of these, and those cases it was a corrosion thing. Test the resistance between the leads at the guage - it should be a max of 90 ohms and should hold pretty steady. I was able to fix a couple of them by running a new lead from the guage to the tank, grinding/drillling the frame near the tank, running a new ground lead from the tank to the fresh hole, and then sealing (painting) over the new ground attach point.
     
  12. chalet2506

    chalet2506 1/2 ton status Premium Member

    Joined:
    May 9, 2006
    Posts:
    4,931
    Likes Received:
    0
    Location:
    Skeddadlin
    Mine's kind of like that. When I fill it up, it shows full til it gets about 1/2 tank left, then it drops like a rock to empty.
     
  13. hank14

    hank14 Registered Member

    Joined:
    May 2, 2005
    Posts:
    15
    Likes Received:
    0
    Location:
    Granbury, TX
    I bought and installed the fix-a-gauge fuel and oil pressure gauges today. It was a very easy project, just the usual difficulty getting the instrument cluster off.

    It didn't fix my erroneous fuel reading, though. Maybe it's the fuel tank side (sending unit). I think I'll leave it alone.
     
  14. broncoman6524

    broncoman6524 1/2 ton status

    Joined:
    Oct 31, 2005
    Posts:
    2,469
    Likes Received:
    0
    Location:
    chuluota Fl
    thats how mine works i drive maybe 200ish miles a week first 4-5 days i lose *maybe* a 1/4 tank the the next 2-3 is drops sooo fast.
     

Share This Page