4th Gen Freon Capacity

[JMZ400]

I'm in a battle with a Toyota dealer about the a/c or lack thereof on the 2006 4R I bought in June. I need to know the total capacity of freon for the system in lbs. Thanks!

 

[Ohhh S.k. CFPB]

it should be listed on the under side of the hood

 

[earthrealm]

any idea of the pressure rating , incase one wants to check if the techie filled the system properly

 

[audiness]

There is no pressure rating. The pressure inside will vary depending on how hot it is outside. Systems are filled by weight, not volume or pressure of the r134a

 

[JMZ400]

Thanks I'll look under hood. On way to dealer now.

 

[earthrealm]

There is no pressure rating. The pressure inside will vary depending on how hot it is outside. Systems are filled by weight, not volume or pressure of the r134a

am lil confused here: so if ur system needs some top up...how would you know the exct weight to put in?....i though it should be pressure based, so that you can know when its full from the guages?

 

[bripgilb]

There is no pressure rating. The pressure inside will vary depending on how hot it is outside. Systems are filled by weight, not volume or pressure of the r134a

Agreed.

4.7 06 T4R has 1.46lbs of refrigerant. I’m sure there is a tolerance there.

My system was leaking and had gotten down to .16lbs.

Hoping that it holds for a while. They added dye so my second hopeful wish is that the dye shows up on a line and not the evaporator in the box. Replacing that costs about $1200-$1500.

If it did though... I’d get them to replace the solenoid control for the HVAC at the same time as it is causing a clicking noise. Which seems to be typical on he 4th gens.

 

[flighht2k5]

I'm in a battle with a Toyota dealer about the a/c or lack thereof on the 2006 4R I bought in June. I need to know the total capacity of freon for the system in lbs. Thanks!

Why do you need to know the weight

 

[Bossman]

Wow, five year old thread back to life!

According to the Toyota 4Runner factory service manual, a recharge of R134a needs 600 grams +/- 30 grams.

http://4runnerclub.com/i/4r_files/f...7toyrm/07toypdf/07rmsour/4runnerr/0430031.pdf

So the maximum would be 630 grams (or 1.39 pounds) and the minimum would be 570 grams (or 1.26 pounds).

 

[missionman]

my 2003 4Runner SR5 v6 has a (USA) sticker under the right top under hood that says
Max 1.54 lbs
Min 1.32 lbs

Why are there different values explained here.

 

[Cezar]

There are 2 ways to charge:

- By Weight; you add the exact amount into a fully empty and vacuumed system according to manufacturer spec

- By pressure; you go off a r134a temperature chart for the outside air temp. Like so:

Both work. The first method is more precise but cannot be use when re-charging a partially-charged system.

 

[Drcoffee]

The third way is to use the sight glass. Fill until the bubbles go away. You should see liquid when compressor is running and bubbles when it disengages. Fluid all the time = too much. Bubbles all the time = too little. (Check while engine is at 1500 rpm.

 

[alia176]

The third way is to use the sight glass. Fill until the bubbles go away. You should see liquid when compressor is running and bubbles when it disengages. Fluid all the time = too much. Bubbles all the time = too little. (Check while engine is at 1500 rpm.

now that's very cool, thanks for explaining it so nicely.