Question about 2008 Chrysler Aspen

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Thermostat location hemi

My temp gage is going all over the place. normal run temp for the last 4 yrs 2 lines below 1/2 just started yesterday it went to 3/4 turned off a/c it dropped to 1/2 then started to climb again then dropped to 4 lines below 1/2 and this morning in outside temp of 65 it started the same thing. turned on heater dropped temp for a little bit then gauge started to climb again then dropped to 3 lines below 1/2 I don't get a notification that anything is wrong with the system like when you need an oil change. Any ideas?I have 46,600 miles everything is original including the antifreeze. have not done a flush of the radiator either.

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  • Chrysler Master
  • 378 Answers

When the temp fluctuates it is because the thermostat is doing it's job it closes to allow heat and opens to cool the coolant so depending what temp the thermostat is 180, 190 etc. will determine when the thermostat opens and closes.when it closes the temp will go up until the thermostat opens at the designated temperature. It could be it has been doing the same thing all along and you just noticed the fluctuation.

Posted on Apr 10, 2017

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  • Chrysler Master
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Dear Lisa,
There are several things that can cause your temperature fluctuation problem. Please know that none of these are unimportant, all are so important you could permanently damage your engine if you ignore it.
I am not listing these according to any plan.
1) Your thermostat is probably located at the connection where the lower radiator hose attaches to the engine block. You may or may not be able to see it , even with a flashlight. That location has a metal housing that the thermostat fits inside of.
2) You may have a leak somewhere causing you to lose radiator coolant, and causing the temperature gauge fluctuation.
You need the cooling system pressure tested to see if there is leak. Low coolant level can cause this, but you must not be losing coolant, that is bad, must be fixed quickly.
3) You have an electric fan near your radiator that maybe malfunctioning.
You will need to have this checked.
It could be the fan motor, or the engine block sensor, or the fan motor relay.
Any of these can cause this problem.
God bless your efforts.

Posted on Apr 10, 2017

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  • Expert
  • 110 Answers

Find the large rad. hose at the top of the rad. follow that to where it connects to the block . there is your thermostat.

Posted on Apr 10, 2017

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SOURCE: 1992 Chrysler LeBaron 3.0 L.

the owner probably rerouted the fuel line because like my 92 chrysler lebaron v6 3.0 the fuel lines keep seeming to come off and the clamps always break. I have replaced the clamps 5 times in a month and replaced filters 2 times in 2 months. The only thing i could think of is that your fuel is being cut off possibly because there is no filter to clean all the junk out. Try putting a fuel filter on and see if that will work

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Could be bad thermostat, but unusual. If the engine isnt getting warm enough, thats where I would start.

Posted on Nov 23, 2010

jturcotte
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SOURCE: Our temp gauge in 2000 town and country van is

yes, thermostat is most likely the problem.

Please see my tip at http://www.fixya.com/cars/r5929960-s_thermostat . These are generic instructions. If you get stuck or need specific instructions for your car, please get back to me with model, year and engine info.

Posted on Nov 26, 2010

c1apton15
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SOURCE: At 28,066 dealer oil change.

First dealer was NOT doing you any justice. Next oil change run a can of GUNK engine flush let idle 5-10 mins then change Oil & Filter and use a good oil like Castrol or Valvoline 10w-30. You won't have "supposed" sludge build up.

Posted on Mar 02, 2011

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SOURCE: 2005 sebring 2.7 V6 Coolant boiling out. Temp

I HAVE A 2001 CHRYSLER CONCORD AND THE OVERFLOW IS BOILING BUT THE TEMP GAUGE IS NOT SHOWING RUNNING HOT. DO YOU THINK THAT THE TERMOSTAT IS STUCK

Posted on Jul 29, 2013

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