A/C system efficiency not so great. flush? electric fan?

Yes, we did.

There are all sorts of vids on flushing components of an a/c system. You wouldn't take the time to learn. In my opinion, you just gave us permission to go open season on your ass.

Nothing will piss off people on the net faster than not educating yourself. There are some pretty smart people here, and they do want to share their knowledge, but you are making it very difficult.

 

Besides hosing off the condenser and changing the cab filter, the a/c system shouldn't require any "maintenance" unless there is a problem. The whole idea of refrigerant seeping out went away with R12. People buying those cans and adding is the worst thing a person can do without properly diagnosing the system. Many have dyes and oil added, no way to actually monitor pressures(the stupid little gauge only works in ideal situation, which hardly ever exist). Too much dye and/or oil can cause major problems. You need to hook up a gauge set and make sure the compressor hasn't failed from being overcharged. The little cans with gauges are very easy to overcharge since you don't really know the pressure on both sides of the system. IF, you insist on using that gauge, always stay on the low side of the green. It's much easier to add a little more rather than overcharge and destroy a very expensive compressor.
To properly flush the system, you don't need to remove the condenser. You remove the lines and blast the flush under air pressure through the condenser to remove excess oil(most likely the case from adding those stupid little cans that often have oil in them, which should never be added unless a new compressor is installed that doesn't have it in it). You need to makes sure all the flush is out before putting the system back together as the flush is mainly to break down and remove the excess oil from adding too much oil, putting oil in the wrong side of the system, or receiver/dryer failure. In this case, you will most likely need a new orifice/expansion valve, receiver/dryer. I'd disconnect every hose and blow air through them before putting everything back together with all new proper O-rings/seals. you'll need to run a vacuum, the longer the better. make sure the system holds the vacuum, shouldn't drop more than 1 inch of mercury per minute for maybe 10 minutes(if you let it sit too long, you'll eventually lose vacuum through the gauge set as they are not completely air tight, depending on the set). Not sure on the Tacoma without looking it up, but most newer vehicles actually hold around just a pound or so of refrigerant. The system is made to work most efficiently while driving down the road, so if you have no understanding/experience of a working a/c system and the correct pressure and take into account it is not moving, you never get the charge correct.
If you take it somewhere and explain that you've let the refrigerant out and been charging with those little cans, they will probably tell you a new compressor, orifice/expansion valve, receiver/dryer, and a flush. Big bucks$$. service techs worst nightmare are those little cans and people adding them to the system without proper diagnosing.
Also, even if you have a little leak and need to add refrigerant every year or so, like on a dodge, you don't need to release what is left in the system. by doing that you just introduced the system to outside air and will need a vacuum. If you have done this often with no problems, consider yourself very lucky and go out and buy lottery tickets.

 

wow, all I can say since I was last here is

im with "k" and moving on too lol

 

Wow this got hostile pretty quick...
Im not sure what you are talking about by a "flush". If you are just trying to rinse the condenser, then you should be fine with a garden hose and moderate pressure. Be sure not to bend the fins. This will help if there is dirt really caked in there, otherwise, you probably wont notice a difference. Your AC is working so doing an internal flush wont really help. I know there are some places that advertise this service but I dont know whats involved here. As others have said, the quickfill top off cans with the gauge on them arent the best way to go. You are taking a risk at damaging your system each time you use them. Sadly, there is no way to know for sure exactly how much refrigerant is in a system without evacuating the system and weighing the contents. I know there are plenty of little gauges but the pressure of the AC system will change as the ambient temperature changes (car on or off).

If it works (cools at least 40°F from ambient outside temp), then I wouldn't worry about it. If you are concerned about a slight leak, check your Low and High pressure caps. Make sure they still have the oring and its not damaged. Replacing the o ring on the plastic caps is cheap and may solve your leak (if you have one). Most leaks are near the low and high pressure ports so if you want to try and find it, start there. Watch those videos when you have a chance, even if you decide not to do the work yourself.