Temp gage gone bad?

[haydenlloyd88]

I mentioned that my truck had Alittle over heating issue it a previous post. So I flushed the radiator and put a new thermostat in but it didn't help according to the gage. And today when I was driving the truck after it sat all day, the gage got to 260 degrees after a few minutes of driving 30 mph. So I pulled over and popped the hood but there was no signs of over heating. The radiator cap wasn't even hot. Could my gage be bad?

[Jjay78]

going through the same thing man, that's my last guess too

[haydenlloyd88]

going through the same thing man, that's my last guess too

I mean that's gotta be it right? A motor can't get to 260 degrees with out making it known right?

[Jjay78]

at that temp your coolent would let ya know real quick

[haydenlloyd88]

at that temp your coolent would let ya know real quick

Exactly, but the radiator cap wasn't even hot, you could
Hold your hand on it no problem

[RIP_K52007]

System building pressure in the hoses?

I had a temp gauge problem with a s10 blazer... gauge would jump up 40 degrees whenever I turned on the headlights.

[jbeery78]

If the rad cap was cool to the touch then the coolant wasnt even hot enough for the stat to open. Id say bad gauge or bad sender. Make sure all the air is out of thw system. Air pocketa cause hot spots.

[MR. Horsepower]

we had a guage 2 times that was stuck and ran right up amd pinned the guage

[haydenlloyd88]

If the rad cap was cool to the touch then the coolant wasnt even hot enough for the stat to open. Id say bad gauge or bad sender. Make sure all the air is out of thw system. Air pocketa cause hot spots.

How do I work out air bubbles

[KORNBREAD]

Run up to auto zone, grab one of their $20 special temp gauges and hook that up. that will clear it up.