heat blow cold air. I have already fluid the heater cord

you have already fluid the heater cord? are both heater CORE hoses very hot to touch/hold em in hands?

You are going to find it to be nearly impossible to diagnose this on your own. the Acura has an automatic climate control system on most models, and even when there is a heater control valve that is cable operated, that valve is under the dash and is inaccessible. Low heat/no heat concerns can be caused by thermostat issues, water pump issues, head gaskets, leaks, clogged heater cores, control system issues- the list goes on and on. Unless you actually know how the system works AND have access to manufacturer and vehicle specific information, it is very difficult to diagnose the system. The above poster is correct in that you need to check each heater pipe and make sure that it is hot. there is an inlet and an outlet. A correctly functioning heater that blows hot air will have an inlet temperature about 40-50 degrees warmer than the outlet. If both pipes are cool or cold, then you have a cooling system issue. If both are hot, you likely have a flow issue like a clogged core or a stuck valve or inoperative control system. You're probably best off paying for a diagnosis (we charge 90$) because even guessing wrong one time will cost you nearly that much in unneeded parts not to mention the time and frustration of making a needless repair. Call us if you need us to diagnose that for you. Professional Auto- 643-2259