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temperature guage fluctuates

 
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Old 10-15-2010, 12:30 AM
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temperature guage fluctuates

I noticed my temp reading going to the fourth line (one past half way mark). It only stays like that for less than a minute. Did some research and singled it down to a thermostat that I just replaced...but it still does it. Not as much but still.

Any suggestions?
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Old 10-15-2010, 01:18 PM
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Re: temperature guage fluctuates

Well my suggestion would of been a thermostat but considering you already replaced it im not sure.
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Old 10-15-2010, 01:32 PM
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Re: temperature guage fluctuates

hmmm could be faulty thermostat (ive had it happen) could be a sensor, is the gauge staying on fourth mark for extended periods?
check your radiator hoses to see if there is pressure in them when the engine is running
squeeze them to check for pressure (careful its hot)..is there enough coolent? (stupid i know but hey it happens to all of us) we need a lil more info than just a gauge fluctuation and thermostat replacement
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Old 10-15-2010, 01:51 PM
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Re: temperature guage fluctuates

I'm gonna try another thermostat. But I flushed out the fluids and put new coolant and water. Both hoses coming from the radiator are pumping cuz there is pressure and they get hot.
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Old 10-15-2010, 03:12 PM
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Re: temperature guage fluctuates

Then its probably a bad sensor
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Old 10-15-2010, 03:32 PM
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Re: temperature guage fluctuates

alright thanks for the help. Do you know where to get a sensor from..or where its located in the engine?

also, what if I get a front mount intercooler. Would it help with the problem?
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Old 10-15-2010, 04:28 PM
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Re: temperature guage fluctuates

dont get a front mount intercooler, are you turboed? you have a bad sensor just so you know :)
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Old 10-15-2010, 09:05 PM
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Re: temperature guage fluctuates

hahah yea after I posted about the front mount...I realized im not turbo'd lol

And thanks a lot for the help. Im gonna replace the sensor asap.

So just to be sure...the car is not overheating...it just thinks it is?
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Old 10-20-2010, 02:04 PM
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Re: temperature guage fluctuates

Yep, thats pretty much the issue.
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Old 10-20-2010, 03:07 PM
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Re: temperature guage fluctuates

I've been having the same issue since March and have replaced everything I can think of, so if whatever you do to your car helps it, please post what you did!
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Old 10-23-2010, 02:46 PM
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Re: temperature guage fluctuates

Did you replace the sensor itself?
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Old 10-23-2010, 09:30 PM
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Re: temperature guage fluctuates

I just replaced the thermostat, but it still showed as overheating. But after a few days it went back to normal. It does not show overheating anymore. Thanks for all the help!
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