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Coolant temperature reading above normal


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#1 Arfreedom

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Posted 24 June 2017 - 10:21 AM

I need help figuring this out. My car temperature is reading above normal near the 3/4 line but it doesn't overheat.
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Did complete flush and it dint even had in a thermostat, anyways a bigger fan 12" ( so I have 2 -12" fans now), new thermostat and it still reading high.
Spoke with the Electrican and he doesn't think it's the sensor cause it would have thrown a error code. He also told me to cold start the car the see if it bubbles in the tank, an nope not that either.
My more pointless reasons???


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#2 surge

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Posted 24 June 2017 - 01:27 PM

Drive the car up a hill, then immediately jump out and look for bubbles in the overflow bottle.

#3 duncanm

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Posted 24 June 2017 - 01:40 PM

is it possible all is normal and its just the gauge/sensor out of whack?

 

Do the fans go on more than they should?

 

I note an aftermarket rad -- is the flow through it ok?  Has it been partially blocked because it wasn't grounded properly?



#4 Robert

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Posted 24 June 2017 - 02:40 PM

You put the theormostat around the correct way yeah ?

In the pic of the old thermostat it's the wrong way around

#5 migoreng

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Posted 25 June 2017 - 10:13 AM

Kong said it's a failing sensor behind the alternator. I haven't had a chance to troubleshoot/change mine yet (3rd gen B4).

No bubbles in my overflow, temp meedle spikes to 3/4 or hot randomly. Sometimes goes up to hot for a minute when i already turned the engine off. I pull out the key for a second turn to ON then needle is back to normal.

Once at a drive thru i saw the needle rapily go hot, normal, hot a few times. Lol

#6 Arfreedom

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Posted 06 January 2018 - 01:34 PM

The solution was actually the gauge in the instrument cluster. When I change it. Everything is working now. Had to buy an entire instrument cluster. Thanks guy. That problem solved


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