Car overheats with AC or heat on while le at idle in park! Also fan comes on with AC on but will cool down moving down the road

Hello, if you have overheating when idling, it's most often due to a cooling fan not working as needed - either not at all, or not at a high enough speed. Focus on this area when diagnostic testing is underway. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops