Question about 2006 Chevrolet Impala
Had the same problem with my 2006 Impala with the 3.5 engine blowing cold air at idle. There is an air pocket in the heater core. With the engine cold, remove the upper heater hose (to the left of the brake fluid reservoir) and add water to the hose until coolant comes out of the metal cross-over tube then reconnect the hose. Fix takes 5 minutes…all you need is a pair of pliers and a funnel.
Posted on Mar 19, 2009
These cars easily get air trapped in the coolant system. Park the car somewhere so that you car get the right front of the car as high as possible. Take the coolant filler cap off and start the car. You should see air bubbles appear as it bleeds it self. Once coolant starts to overflow put the cap back on. It should be fine now but if not repeat again.
Posted on Jan 05, 2009
Gm Has a TSB to reflash the PCM that will fix this.
Posted on Dec 20, 2008
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