Question about 2004 GMC Yukon

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Temp gauge is all the way over to the right past the temp numbers,replaced sending unit two weeks ago and then it did this again, bad sending unit?

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  • 141 Answers

Most likely a bad connection or bad connector try wiggling it and see if it comes back to life if so use a small pick or awl to close the pin in the connector shell a little and reseat the connector

Posted on Jan 04, 2013

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Posted on Jan 02, 2017

  • 14036 Answers

SOURCE: TEMP GAUGE NOT WORKING ON 95 SONOMA 2.2

check the wiring insrument cluster to the temp sensor. check the ground wire.

Posted on Apr 07, 2009

wracefans24
  • 1985 Answers

SOURCE: Have 06 sierra with 5.3L temp. gauge not working

you have covered all the bases,
you need to go to a chev dealer and ask someone in service if there are any TSB's on your problem,
Technical Service Bulletins,come from the manufacturer,
when they get alot of complaints,they send there people out to find the exact problem,then they send bulletins out to dealers so they can repair there customers cars.

Posted on Dec 26, 2009

csmock132
  • 4669 Answers

SOURCE: The temp gauge does not indicate any temp info.

Did you replace the sending unit on the drivers side head between the number 1 and 3 spark plugs? That is the one for the gauge

Posted on Apr 17, 2010

skychief2001
  • 21873 Answers

SOURCE: 1990 gmc K1500 5.7L, temp. gauge not working:

To review, you have two temp sensors, one for the gauge on the dash and one for the computer. If you unplug the sensor for the computer the reading will be minus 30 degrees or over 300 which will make it very hard to start. Unplugging the sensor for the gauge would have no effect on the computer.
According to the wiring diagram, the wire for the temp gauge is green, and the wires for the temp sensor for the computer are yellow and black.

Posted on Aug 24, 2012

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2 Answers

Looking for the temperature sensor on my 1999 honda Odyssey because the temp gauge has been stuck on high since I bought it 4 months ago. What else could be the problem?


USA answer, not in usa , ignore my post or post country?
it can only be 3 problems, alldata.com covers the simple tests.
1: bad sender (if scan tool shows ECT reads right, its not this)
2: bad wires (conns) ECU/pcm to gauge.
3:bad gauge.
see:
factory FSM or alldata.com.

here is your type system, its no longer independent like in older years
quote:
The coolant temperature information is conveyed to the instrument panel, through the PCM, from the Engine Coolant Temperature (ECT) gauge sending unit. To test the gauge sending unit, first test the gauge operation to make sure the problem is not in the gauge or gauge wiring.
end quote.

my guess ? bad connection to I/P gauge cluster (rear)
do this only after scanning (any scan tool works) the ECU OBD2 port to see if temperature is normal at the ECT but Guage lies.
that is it. only testing wires an gauge, works from this point.

Oct 16, 2013 | Cars & Trucks

1 Answer

I had my Alternator changed yesterday on a Ford escort gti. The battery light was on and temp gauge was stuck past hot. Once changed all was fine but today I started it up and temp gauge is stuck past hot...


The temp gauge and battery light issues may not have been related.
The gauge reads high when the circuit to the temp sending unit is grounded. It could be the gauge on the dash, or a wiring problem, or the temp sending unit on the engine.

Jun 20, 2013 | Cars & Trucks

1 Answer

Oil Gauge Marking Way Past 80


Check your dipstick for antifreeze in the oil. You mad need to replace the oil pressure sensor/sending unit. If there's no antifreeze in engine oil, replace sending unit. Should be a round silver sending unit at the left rear place on the intake with a plastic black wiring connector with 2-3 wires going into it.

Jan 25, 2013 | 2005 Chevrolet Silverado 1500 2WD

1 Answer

Engine cooling fan will not opperate


check that you have a thermal switch to switch on the fan and not a temp sender unit. One completes the curcuit when a set temp is reached ,the other is a resistance unit that lowers the voltage which in turn reads hotter on the gauge.

Jan 17, 2013 | 1996 Ford Thunderbird LX

1 Answer

2004 Jeep Grand Cherokee temp gauge high when heat is on


If your "check engine" light is turn on, I suggest scanned the PCM to know exactly what fault code is stored there. Additionally, could be some problem with the "temp sending unit".

Keep us updated.

Jan 23, 2012 | 2004 Jeep Grand Cherokee

1 Answer

1984 FIERO 4 CYL STICK. had a aftermarket elec temp gauge mounted on console, replaced with a mech temp gauge. after replacing temp gauge is when the fuel gauge messed up. now when you turn on the key or...


I assume you replaced the temperature sending unit when you installed the aftermarket gauge? You need to put the proper sending unit back in for the OEM gauge to work.

You can find a sending unit here (and a gauge if needed):

http://www.fierostore.com/

Hope this helps

Nov 06, 2010 | 1984 Pontiac Fiero

1 Answer

My Speedometer and temp gauge are failing.They get stuck. Can you tell me how to fix it? Some people are saying that you have to remove the entire dashboard to get to it. I was also told that this is an...


Maybe I can help a little they are right it is one unit. How ever each one has a sendding unit and are fused. Your temp gauge has a sendding unit your speedodomder works off a cable. I'm resorring my first car 87' camaro none of the gauge work ex. the speed. No gas, no temp or oil replaced sending units they work now but they not cheap. I got tried of running uot of gas I'm a bad guesser.

Hope I answered your proplem.

Oct 06, 2009 | Chevrolet Impala Cars & Trucks

1 Answer

91 Town Car - How can I tell if my temp gauge is bad. Right now


The best way to test it is to replace th sending unit.Reove the wire off the sending unit,and see if the gauge pegs out,or falls down.Then ground it,it should have the same effect.It should peg out if you ground the sening unit.When removed,it should fall.This is with the key on.If thi gauge does these things,then replace the sending unit.

Oct 06, 2009 | 1991 Lincoln Town Car

1 Answer

Temp gauge off charts


Are you mistaking the engine temp sensor for the engine temp sending unit? The temp sensor is for the fuel injection system and the temp sending unit is for the gauge. If you asked for a sensor thats what they sold you. You need to ask for a sending unit.

Dec 18, 2008 | 2005 Chevrolet Cavalier

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