2004 Chevrolet Trailblazer LS 6 Cyl 4.20L
How much does it cost to replace acuator, relay sensor and fan blower?
Heating and cooling does not work
The parts are inexpensive to replace - as compared with the labor cost. Unless you are performing the parts replacement yourself, it is recommended to obtain 2-3 written estimates for the same work from local auto repair shops.