what should my dash gauge read for normal opp temp on my 97 Chevy 5.7 liter vortec
0.06 FOR 2.2 Gauge will show .060 or 1.52mm for 2.2Litre 4 cylinder
take it to a local shop that reads codes for free... could be a sensor is out
I am willing to bet that you have had someting inside your gas tank or dash worked on recently. The issue is that the plug for your sending unit is on backwards or the wires to your gauge are reversed.
one of gm's many flaws. was recalled 4 times a few years ago, but never fixed.
There are a couple of reasons this could occur.One could be that the temperature sender is defective and needs to replaced this is what makes the gauge on the dash show a reading.Two is if the temp sender is not defective then it could be a faulty gauge meaning the gauge needs to be replaced.Also a short in the wiring or bad connection can cause this.As long as you have normal heat temps when in the vehicle I would not think it is ur thermostat being bad.The only thing that may cause the needle to not be in the normal position is extreme cold but the gauge should show a reading.If the gauge does not move at all, I say it's more than likely the temp sender is bad in most cases.I would not rule out other issues but,most typical is the sending unit,and not the gauge or short or bad connection.I could elaborate on checking lots more but,this is alot to begin with.
That's a classic symptom of a sticking thermostat.
With a gas gauge. The line should show no less than a quarter of a tank to be safe.
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More than likely the gauge is NOT the problem.Just make a jumper wire and disconnect the sending unit wire from the water temperature sender and place one end in the connector and ground it to the block and the gauge should work or show say hot.If it does show the gauge show the needle in the hot it is the sender is faulty and should be replaced.If the gauge does show the needle move to hot and moves to the cold it will be the gauge is bad(not likely in most cases).Have a helper in the truck to turn the key to the ON position not running when you ground the sending wiring to the block to note wether it moves up to hot or down to cold when you do this to simplify the issue.I will bet the sending unit for the water temperature is just worn out most of the time.
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