My 03 Chrysler 300 temp gauge on my cluster goes up and sown but never gets hot all the way

Asked by Feb 10, 2016 at 02:07 PM about the 2003 Chrysler 300M

Question type: Maintenance & Repair

So I can drive 100 miles and it still act's the same it
only gets like 3/4s of the way up. And goes down
like notch by notch it's driving me crazy. Fans are
coming on and off like normal its good green
coolant I've blew all the air out of the top threw the
bleeder valve it's driving me nuts please help.

5 Answers

330

Maybe the temp goes up until the thermostat opens then starts going back down. That sounds normal to me. If you say it isn't acting normal, I believe you. Just to name some systems that can have an effect on your temp gage, thermostat--coolant temp sensor--pcm--bcm--instrument cluster not to mention wiring circuits. There could be other issues? Unless you can give me a code or something that points in the right direction, it's like hunting a needle in a haystack.

Well I don't have a code. No check engine light is on. Its going up and down and it's never done that. I did and oil change and bam it started. Its so confusing because there is no code or leaks it's running good its just saying its getting warm it might be a heater core valve. But idk I've tryed it all

Try checking all your vacime hoses. Also check your water pump

Inspect your coolent reservoir for leaks

No one ever posts what the fix finally was? I am having the same issue, everything was replaced. and still get to 3/4 mark at idle but if you raise the rpms then the temp goes down.

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