What is your question?
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What is your question?
My heater works on settings 1-4 only and blows cold air it will shut down if out on setting 4-5
Be WISE to replace the wiring connector / pigtail as well ! All available at most auto parts stores ... NAPA for sure. Believe it or not > GM dealer also has very reasonable pricing - probably best route. Not a difficult repair - YouTube should have how to video(s). Good luck!
Now - this has no effect on heater output *TEMPERATURE* - only the blower SPEED.