Question about 2005 Chevrolet Tahoe
For a few months my Tahoe will not blow hot air, even after running car for a while. Then, yesterday I noticed that the engine was heating up at high speeds. When I slowed down or stopped, it would cool back down just under half-way on the gage.
If your radiator is full of water, then its probably the thermostat sticking. The thermostat is located on top of the engine, under the housing that the radiator hose goes to
Posted on Feb 10, 2012
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Posted on Jan 02, 2017
Have you checked yoour heater core? I agree it is possible that your evap might have sprung a leak. Have you physically checked your A/C compressor to see if your cluth is coming on?
Posted on Jul 05, 2009
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Try stopping on a steep incline--does the heater stay warm? If yes, what you have is an air bubble that hangs at the heater hose until pressure from the water pump blows thru it as the engine speeds up. Park on an incline, open the radiator cap, run the engine until the thermostat is open, turn the heater on, crack open any/all bleed ports to release any trapped air, and fill the radiator to the neck. Wait until the level stops dropping and make sure bubbles don't continue to come up. If they do, you may have a blown head gasket that will keep forming these bubbles until you change the gasket.
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