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Thread: 1989 Chevy k1500 temp gauge issue

  1. #1
    thirdeye
    Guest thirdeye's Avatar

    Default 1989 Chevy k1500 temp gauge issue

    I have a 1989 chevrolet k1500 with the 4.3 L engine. My truck has the
    old style gauges (doesnt have the needles, not sure what they are
    called). anyways, my temperature gauge only seems to work once in
    awhile. it will bounce all over the place, sometimes not work at all,
    and then work fine. any ideas what could be wrong with this?

  2. #2
    curmudgeon
    Guest curmudgeon's Avatar

    Default 1989 Chevy k1500 temp gauge issue

    Thermostat and/or sensor going bad. Bad ground.

    "thirdeye" <Illsley1983@..........> wrote in message
    news:50293e44-daa8-4f1d-b05e-f75ccec151dd@t54g2000hsg..............com...
    >I have a 1989 chevrolet k1500 with the 4.3 L engine. My truck has the
    > old style gauges (doesnt have the needles, not sure what they are
    > called). anyways, my temperature gauge only seems to work once in
    > awhile. it will bounce all over the place, sometimes not work at all,
    > and then work fine. any ideas what could be wrong with this?

  3. #3
    thirdeye
    Guest thirdeye's Avatar

    Default 1989 Chevy k1500 temp gauge issue

    Thermostat is brand new. I did replace the sensor before but it was
    probably 5 years now. if it is a bad ground, where should I start
    checking?

    On Jun 9, 10:32.am, "curmudgeon" <curmudg...@buzzoff.net> wrote:
    > Thermostat and/or sensor going bad. .Bad ground.
    >
    > "thirdeye" <Illsley1...@..........> wrote in message
    >
    > news:50293e44-daa8-4f1d-b05e-f75ccec151dd@t54g2000hsg..............com...
    >
    >
    >
    > >I have a 1989 chevrolet k1500 with the 4.3 L engine. .My truck has the
    > > old style gauges (doesnt have the needles, not sure what they are
    > > called). .anyways, my temperature gauge only seems to work once in
    > > awhile. .it will bounce all over the place, sometimes not work at all,
    > > and then work fine. .any ideas what could be wrong with this?- Hide quoted text -

    >
    > - Show quoted text -

  4. #4
    curmudgeon
    Guest curmudgeon's Avatar

    Default 1989 Chevy k1500 temp gauge issue

    Sorry to say even new thermostats can be bad right out of the box. Think
    about what it cost, and you'll understand how that can be so.
    But if you want to assume it's good - and the upper radiator hose gets very
    hot after running awhile - then it has to be either the sensor, the guage or
    the wiring between the two.
    If you don't know how to test circuits and electrical items with a volt-ohm
    meter, you'll need to find someone who does.

    "thirdeye" <Illsley1983@..........> wrote in message
    news:ce837bba-f1a9-4975-8907-2fd2b41f9407@2g2000hsn..............com...
    Thermostat is brand new. I did replace the sensor before but it was
    probably 5 years now. if it is a bad ground, where should I start
    checking?

    On Jun 9, 10:32 am, "curmudgeon" <curmudg...@buzzoff.net> wrote:
    > Thermostat and/or sensor going bad. Bad ground.
    >
    > "thirdeye" <Illsley1...@..........> wrote in message
    >
    > news:50293e44-daa8-4f1d-b05e-f75ccec151dd@t54g2000hsg..............com...
    >
    >
    >
    > >I have a 1989 chevrolet k1500 with the 4.3 L engine. My truck has the
    > > old style gauges (doesnt have the needles, not sure what they are
    > > called). anyways, my temperature gauge only seems to work once in
    > > awhile. it will bounce all over the place, sometimes not work at all,
    > > and then work fine. any ideas what could be wrong with this?- Hide
    > > quoted text -

    >
    > - Show quoted text -

  5. #5
    thirdeye
    Guest thirdeye's Avatar

    Default 1989 Chevy k1500 temp gauge issue

    On Jun 9, 5:00.pm, "curmudgeon" <curmudg...@buzzoff.net> wrote:
    > Sorry to say even new thermostats can be bad right out of the box. .Think
    > about what it cost, and you'll understand how that can be so.
    > But if you want to assume it's good - and the upper radiator hose gets very
    > hot after running awhile - then it has to be either the sensor, the guage or
    > the wiring between the two.
    > If you don't know how to test circuits and electrical items with a volt-ohm
    > meter, .you'll need to .find someone who does.
    >
    > "thirdeye" <Illsley1...@..........> wrote in message
    >
    > news:ce837bba-f1a9-4975-8907-2fd2b41f9407@2g2000hsn..............com...
    > Thermostat is brand new. .I did replace the sensor before but it was
    > probably 5 years now. .if it is a bad ground, where should I start
    > checking?
    >
    > On Jun 9, 10:32 am, "curmudgeon" <curmudg...@buzzoff.net> wrote:
    >
    > > Thermostat and/or sensor going bad. Bad ground.

    >
    > > "thirdeye" <Illsley1...@..........> wrote in message

    >
    > >news:50293e44-daa8-4f1d-b05e-f75ccec151dd@t54g2000hsg..............com...

    >
    > > >I have a 1989 chevrolet k1500 with the 4.3 L engine. My truck has the
    > > > old style gauges (doesnt have the needles, not sure what they are
    > > > called). anyways, my temperature gauge only seems to work once in
    > > > awhile. it will bounce all over the place, sometimes not work at all,
    > > > and then work fine. any ideas what could be wrong with this?- Hide
    > > > quoted text -

    >
    > > - Show quoted text -


    say if there is a bad ground/connection between the sensor and the
    gauge. seems like it would be a difficult undertaking to get that
    working again.

  6. #6
    Big Al
    Guest Big Al's Avatar

    Default 1989 Chevy k1500 temp gauge issue

    > Sorry to say even new thermostats can be bad right out of the box.

    Could you please explain how a bad thermostat could case this:

    >> anyways, my temperature gauge only seems to work once in
    >> > awhile. it will bounce all over the place, sometimes not work at all,
    >> > and then work fine. any ideas what could be wrong with this?-


    Al

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