A/C in 2007 Toyota Tacoma not working good LOTS OF HEADACHES!!!

I've been getting a lot of problems with my truck and now I want to tackle the a/c problem in this truck as it is just too hot. Will it's unusual because my drivers side a/c vent closest to the door runs cold at like 55 degrees fahrenheit and the last 3 vents on the right side of that all the way towards the passenger side runs hot at around 80-91 degrees or so. Also want to mention that there is no dual zone on this truck. After going to the autoparts store seeking the answer to my problem I was told that it's probably and actuator problem. So I went to the dealer and spent a pretty hefty price on an OEM actuator. I received it today and installed it under my glove compartment and actually I was kind of doubting myself because the actuator that I bought was for the recirculation button where that screen panel opens and closes. There is atleast 2 actuators that I know of inside of the dash one is the airdoor actuator and I think the other is called the climate control one on the left towards the drivers side. I then went to go add some refrigerant to the truck to see if that would work but it ended up spiking to 70PSI in the red so I stopped after seeing that to prevent any damage from being done. The guy originally told me to check the pressure reading before I added anything in but I wasn't sure wether to check the gauge with the engine off or on, so I did both. I added the refrigerant in with the truck turned on a little bit after pulling the trigger it immediately spikes into the red zone. It's kind of sad because like for the first min or so I thought I was adding in refrigerant but I wasn't pushing hard enough so nothing was coming out. But I did notice that the coldest vent in the truck got colder which was the vent that was at a temp of 55 F originally it was 65 F before I filled up the refrigerant. But it still didn't solve my a/c problem in the truck overall. I'm not sure what the problem is whether it has something to do with the expansion valve or actuator or condenser or compressor or the radiator or evaporator core or heater core. I am by no means a mechanic or a guy who's knowledgeable in cars and has crazy good skills at fixing. I just want cold a/c and if anyone can give me some pointers at tackling this problem ty.

Specs:
2007 Toyota Tacoma
V6 6 cylinder
4WD
6 Feet bed
Oil filter and air filters replaced recently
Btw my truck takes 5w30 oil but I accidently added Synthetic 5w20 oil in it so I just left it in so far without any issues. Lmk if adding that wrong oil is bad or anything else that I should be aware of and ty.

 

It is an indication of a low refrigerant charge when the drivers left vent is cold and they get warmer as you move to the passenger side vent. I have had the same indications and it was a leak.

Find and fix the refrigerant leak.
Get a proper vacuum and fill with refrigerant.

That should take care of your issue.

 

The last sentence in your post says everything . Take the truck to a proper AC technician to have it looked at and repaired properly before you cost yourself more money. Good luck. Never just add refrigerant for the sake of adding it to see if it works , over charging the system can cause additional damage.

 

A/ C diagnostic work is actually reasonably priced and a guy that knows what he’s doing is indispensable and worth his cost. I thought I had a big problem when my regular mechanic referred me to his A/C guy. Turns out it was only $350.00 to diagnose and replace the engine speed sensor. First time I’ve had A/C in the 3 years since I bought the truck. Life is good.

 

Find a good local garage, avoid the dealer, they don't need your money. Mom 'n' pop will give you greater satisfaction as they really do care for your service.

 

One of the guys on TW had an interesting one on his 2007. The OEM fan clutch and the fan replaced with an aftermarket electric fan that didn't pull enough air.

The compressor takes gas and pushes it through the condenser (in front of the radiator), which then cools the gas to a liquid, then onto the expansion valve, back to the evaporator (inside the cab), then back to the compressor.

So in his case, the electric fan was enough airflow to keep the truck from overheating, but that refrigerant didn't have time to go from gas to liquid. Hence lack of cooling, but the pressure was correct.

I have to admit that would have messed me up (I still have my snap-on gauges from R12 days). High pressure and Low-Pressure readings would show a compressor working but not cooling.

Independent, Mom/Pop shops are good. They do that day in day out. I like finding places that focus on makes (i.e., Toyota Only) as they have time to keep up. My local shop is good at everything. Normally I do all my own work but didn't have time to take care of a Honda (suspected coil on plug failure, check engine light). Nope, rat chewed harness. Grrr.

 

OP, usually I am a strong advocate of DIY work on the Taco, but AC work is not one of them. You can make a real expensive mess of things by adding a little more refrigerant here and a little more oil there or adding some magic coolant with stop leak without knowing the actual problem and not knowing what you are doing.

Moreover, on our trucks both undercharged and overcharged AC systems do not cool. Leave it to the pros.