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Old 11-17-2008, 02:46 AM
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temperature problem

Alright well...still havin this problem with my car....my temp gauge runs all the way to red. but the engine itself doesnt feel hot. i got a new thermostat from advanced auto parts...when driving around for a bit the upper rad hose is hot, but not to the point i cant hold it or touch it, and the lower rad hose is cold (im guessing maybe because its snowing outside?) my temp gauge says its normal most fo the time unless i turn the heat on, then the gauge starts climbing up, and when i shut it off it goes back to normal....any ideas on whats goin on here?
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Old 11-17-2008, 03:15 AM
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Re: temperature problem

I would say its a sensor. because when the t-stat opens, its goes through and the coolant temp is read from another sensor. May be it worn out? I think its the one on the left of the head, thats next to the heater hose.
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Old 11-17-2008, 03:59 AM
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Re: temperature problem

My car does the same thing once in awhile, I replaced the T-stat and the temp sensor next to it and it still does it. I think that it is the gauge because I checked the top radiator hose with an infared thermo and it was within normal operating temp while the gauge was all the way up. Turn the car off and re-start and the temp gauge reads normal again.
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Old 11-17-2008, 10:46 AM
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Re: temperature problem

sounds like you have a clog somewhere. it seems that by turning on your heat you are bypassing the clog and the hot coolant is able to flow over a tstat. you'll have to flush it real good.

its either that or your water pump is going. im betting on a clog though

Last edited by hojemwod; 11-17-2008 at 10:52 AM.
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Old 11-17-2008, 01:16 PM
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Re: temperature problem

If your bottom radiator hose isn't even warm, it sounds like coolant isn't even passing through it. Do a flush and check for a clog somewhere.
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Old 11-17-2008, 01:37 PM
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Re: temperature problem

Could be an air bubble.

Could be a temp sensor.

I had the same problem...it didn't feel hot at all until about 240 degrees (I have an am w.temp gauge) and finally realized it was hot. Turns out it was a bad radiator. Check the bottom of your radiator for corrosion and missing fins.
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Old 11-17-2008, 02:13 PM
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Re: temperature problem

So I'm not the only one these days. lol
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Old 11-18-2008, 01:52 PM
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Re: temperature problem

yeah exactly my car does the same thing, ill turn it off and turn it back on and the temp reads normal....i was thinkin there was a clog somewhere too but i just dont see how turning my heater on would cause any changes in wether its clogged or not...the valve for my heater core is messed up so i had to manually open it and it stays open all the time now so, turning on the fan doesnt change anything in the flow of the coolant...all it should do is pull heat from the coolant...which is why it baffles me that when i turn to fan on it actually says its getting hotter lol


i have to agree that it seems like its probably more related to that temp gauge itself since the engine including all the sensors are from my friends car and it never read hot like this in his car....
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Old 11-18-2008, 02:12 PM
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Re: temperature problem

Quote:
Originally Posted by ragnarok0mega View Post
yeah exactly my car does the same thing, ill turn it off and turn it back on and the temp reads normal....i was thinkin there was a clog somewhere too but i just dont see how turning my heater on would cause any changes in wether its clogged or not...the valve for my heater core is messed up so i had to manually open it and it stays open all the time now so, turning on the fan doesnt change anything in the flow of the coolant...all it should do is pull heat from the coolant...which is why it baffles me that when i turn to fan on it actually says its getting hotter lol


i have to agree that it seems like its probably more related to that temp gauge itself since the engine including all the sensors are from my friends car and it never read hot like this in his car....
ah, true that...cept i was thinking along the lines of, when you move the slider from cold to hot it lets the coolant flow
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Old 11-22-2008, 12:03 AM
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Re: temperature problem

FELLAS I'VE GOT THE SAME PROBLEM...MY TEMP READS NORMAL UNTIL THE RAD FANS KICK IN...WHEN THIS HAPPENS,THE TEMP CLIMBS ALL THE WAY TO THE RED ZONE AND NORMALISES WHEN THE FAN SHUTS OFF...THE ONLY THING I'M MONITORING IS WHEN MY FANS KICK IN....LOL.....CAN SOMEONE SHED SOME SOLUTIONS TO MY PROBLEM???
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