Question about 2004 Chevrolet Avalanche

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2004 chevy avalanche overheating

Temperature gauge bounces around from normal to moderately hot temperatures, Doesn' look too have any leaks my initial guess is the thermostat. Abyone got an idea of what the problem can be?

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  • audavid Jan 12, 2009

    2004 Tahoe Temp Guage ran up to 260 dgr. mark after very short drive (5min). Stopped vehicle and let sit .... no apparent leaks, hoses in good shape. Coolant at normal levels . Just had radiator flushed . after Sitting for 30min ran truck 10min observed normal temp .. has been normal for past 3 days



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Change thermostat on 2004 chevy trailblazer

Posted on May 05, 2009

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If the coolant is not low it sounds like the thermostat is sticking.

Posted on Nov 29, 2008

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Temperature and depth reading is bouncing around all over. Is that something I can fix???


Popular Mechanics - Jan 1961 - Page 139 - Google Books Result

https://books.google.com/books?id=XNsDAAAAMBAJ
Vol. 115, No. 1 - ‎Magazine
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Engine temperature gauge low


I would suspect the thermostat first.

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Temperature needle stays on the hot , have changed temperature sensor but it still stays on the hot and the engine is not overheating or leaking anything..what is making it stay on the hot


replace the thermostat,, and make sure that the fan engages , just because the fluids don't boil over doesn't mean the temp isn't to high, if your saying that the temp gauge is stuck on the hot setting, and doesn't move even when the car is cold,, thats a different problem,, if thats the case whats the make , model , and year

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My 99 odyssey's temp. gauge randomly bounces from normal to hot while driving or at a stand still. All my fluids are in the normal range and the car doesn't seem to be running rough.I checked under the...


I don't think it's the thermostat, so much, as the circuit for the temperature gauge which includes, wiring to the cts (coolant temperature sender), the cts itself, and the gauge. It's likely a wiring problem if it randomly bounces from normal to hot while driving the vehicle or standing still.

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First of all you have a bad heater core that needs to be replaced. Second you may have a bad temperature sensor. Make sure the radiator if full of water

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2004 chevy avalanche with dual control system problem


this problem is caused in almost all cases by a failed actuator that moves the door insiode the heating/ac duct to change the outlet temperature, it is called the Air Temperature Control Blend Door actuator.

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Problem with No Heat on 2005 Chevy Avalanche - Cooling System?


it is most likey a sticking thermostat it either gets stuck closed or open in your case closed so collant isnt getting to the heater core and all you get is cold air blowing into the truck.
its a simple fix you can either do it your self or take it to a mechanic. now remember there are differnt thermostes so think about the climat you live in and get one according to that

Jan 07, 2009 | 2005 Chevrolet Avalanche

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