After ECT swap and replacing some coolant...heater sometimes blows cool air...(more)

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Mar 13, 2005 | 08:19 AM

fourwheelslide

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After ECT swap and replacing some coolant...heater sometimes blows cool air...(more)

Lost a fair amount of coolant when I replaced my ECT sensor and it popped off...replaced the coolant and redid the sensor, now when I use the heat, it doesn't seem as hot as it used to and sometimes will even blow cool air, especially on the passenger side. Thoughts? Do I maybe have air in the coolant system? I noticed the expansion tank bubbling a little, but VAG has coolant temp at about 205 degres Fahrenheit (96 celsius). I know that excess air in the system can cause an early boil, but i did a 60/40 solution per the manual, so it should be good to 250+ fahrenheit.

Mar 13, 2005 | 12:22 PM

Ultrasport-Sal

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Yes, it sounds like possible air in coolant.

Mar 13, 2005 | 01:14 PM

fourwheelslide

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I bled the line at the bleeder valve under the engine cover...

...still cold...do I need to do more than one bleed...I ran the engine until coolant began to come out of the bleeder hole and then capped it. Anything else I should know or try?