My 2004 tahoe speedometer stop working along with gas gage why is this

Your problem is like my friends.
He and his wife looked all over the vehicle untill they found the wires that were broken.
There wireing harness had a spot that had rubbed on the truck and shorted out the gas gage and speedometer.

If the odometer is analogue then it could be a broken speedo cable!

natural for engine temp to rise in Traffic - Until Themostat opens ) cooling fan sensor kicks on fan . But Antifreeze is not just a Cold weather item . Coolant is Absolutely Necessary for Hot Days . You must be full to recovery bottle setting of cold when checked prior to start up . Coolant for your make / model is Reddish - Pink colour and should have a reading of -25 thats negative 25 degrees the Lower the Better even - 50 .. Why ?? - 50 is 50 %% antifreeze / Coolant Concentrate MIX Gives Hot weather cooling Ability or very cold weather starting / winter HEAT .

Check the fuse panel to see if you have a fuse labeled instrument cluster or gauges, if not on the side of the dashboard (or underneath) check under the hood the relay box and look for your problem there. If none of these, then take it to an electrician to have them check it out.

There is a special policy on these clusters up to about 70,000 miles. But whether you're under 70k or over, your cluster needs to be replaced.

all chevy made in that year have a speedometer issue i have a 2004 chevy that has the same issue the only way to fix it is to replace the dash insturment panel some of them the speedometer goes and the rest of the gages work fine or try replace the speed sensor located at the front of the transmission on the bottom

That is a known guage cluster problem that GM will fix under warranty. Had the same problem with mine.

sounds like you have a bad fuel gauge sending unit common problem it is located inside the the fuel tank with the fuel pump Auto Zone should be able to pull codes to verify this it should say you have a bad fuel level sensor code

The speedometer in newer cars are electronic, so check your speed sensor.

you need to check your fuses

sounds like a popped fuse to the cluster

if that don't work dis-connect the battery for a sec

good luck