Question about 2009 Chevrolet Silverado 1500
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Posted on Jan 02, 2017
SOURCE: cooling system
maybe the ECM got deprogrammed. did you disconnect the battery / if you did disconnect the battery negative terminal and leave it for a few minutes the re install it. It should reprogram the computer Module.If not check you coolant level or themostat.
Posted on Nov 16, 2008
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
Posted on Jan 29, 2009
it sounds like a possible head gasket problem,you can get the fluctuation from combustion gases getting pumped into your cooling system and creating gas pockets,i would suggest taking it to a shop and have them do a block test to look for combustion in the cooling system to confirm the problem,that way you will know for sure,if it comes up negative they can also perform a flow test to make sure there is no restriction in the cooling system such as a plugged radiator or a bad thermostat,hope this sheds a little light on it
Posted on Sep 12, 2009
Testimonial: "I bet you've hit on the problem ! Car has been "using " antifreeze for a couple years now, with no leaking anywhere. Lost through the head gasket ?"
First thing you need to do obviously, is check your coolant level. If coolant level has been checked and all is well, then I'd look at replacing the thermostat.
Posted on Sep 12, 2009
yes sounds like a stuck thermostat or the temperature plug if faulty could also you need the radiator fluid tested fro proper mixture
but sounds like thermostat stuck and most likely going bad
Posted on Jan 06, 2010
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