Anyone happen to have the pressure specs for a 96 V6 Taco?

Low side or high side of the A/C?

I believe you'll need both

At idle (900rpms) on a 90? day I'm seeing 240 psi on the high side and anywhere from 25 to 35 psi on the low depending on where in the cycle it is. The 2.2-2.5 x air temp rule says the high should be 198-225, but I don't know if that is at idle or at a higher rpm. The high side will drop to 225 if I raise the idle to 1500 but I can't remember if that is where I'm supposed to be within the 2.2-2.5 range or if it's at idle. Also if you let the car sit with everything off and let the system equalize, what should the pressure be? Isn't that how you verify you have the correct amount of freon in it? Thanks for any and all info.

The FSM for my '01 lists test conditions as 1500rpm; blower on hi; A/C on; Temp control at full Cool position; doors of truck open.

Not sure whether your 96 has a sight glass (on top of the receiver-drier -- usually near the condenser up front), but if it does, you use it to judge the amount of referigerant in the system:

Bubbles present in sight glass -- low referigerant (a few bubbles okay at high ambient temps if cooling is okay)

No bubbles -- no referigerant, just right, or too much:
1) if no difference in temp on compressor inlet and outlet -- empty or nearly empty
2) noticeable difference in compressor inlet/outlet temp -- correct or too much

3) Sight glass stays clear immediately after turning A/C off -- too much

4) Sight glass foams then stays clear after turning A/C off -- correct

FSM lists "normal" pressures as 0.15 - 0.25 MPa (1.5 - 2/5 Kgf/cm2) on the low side, and 1.37 - 1.57 MPa (14 - 16 Kgf/cm2) on the high side (noting that guage indications may vary slightly due to ambient temperature conditions).

I don't have the conversion from the above values to psi, but will look around and re-post if I find them.

Edit: That's 21-36 PSI Low, and 198-228 PSI High

See also: Online Pressure Conversions

Awsome info! Thank you for taking the time to type all that out and do the conversions for me. It does have a site glass and I let it continue charging for a minute or two after it went totally clear so I guess I charged it ok. Unfortunately that was a couple of weeks ago and it now foams up when it cycles so I guess I still have a small leak some where. Oh well. I'll see how long the charge lasts and decide then if its worth replacing more parts or not. Thanks again for the info.

As said above, it's OK to have some bubbles if it's hot outside. It's OK to have a lot of bubbles immediately after the compressor turns off, but not while it's running at a steady state. The two ways to find leaks that I'm aware of are to 1) get a sniffer, or 2) add an ultraviolet die to the refrigerant, let it run for a while (come back in a few day's if it's a really slow leak) then crawl around under the hood with a black light and look for the glow.