AC repair

[r2550g]

Daizo, much thanks for the quick replay! did you get it out from underneath or upper area? I tried quite a while to get it out from underneath but no success. : - ( Maybe I should try to pull it out from upper area.

Thanks again!

 

[Daizo]

Daizo, much thanks for the quick replay! did you get it out from underneath or upper area? I tried quite a while to get it out from underneath but no success. : - ( Maybe I should try to pull it out from upper area.

Thanks again!

I did it from the upper area.

 

[r2550g]

Thank you Daizo!! Following your advice, I was able to get the compressor out from upper area. Like you said, it could only come out from a certain angle. Thank you so much!!!

 

[Daizo]

Is that evaporator bad? I got a little bit of that yuck at the bottom corner in the same spot. I’ve had all elements of my ac replaced but that. Blows cold as s*** but was wondering if there’s a downside toman evaporator in that condition. I only saw it when I was doing my cabin air filter add to my 2003lc.

I'm pretty certain that my evaporator was bad. Did you see the dye at the bottom or drain? If it's slow leak, it might work for a few years without any issues, but that might mess up the compressor because the oil would be leaking at the same time.

 

[Daizo]

Thank you Daizo!! Following your advice, I was able to get the compressor out from upper area. Like you said, it could only come out from a certain angle. Thank you so much!!!

Awesome!

 

[r2550g]

Daizo, one more question, do you still remember how much refrigerant oil did you end up put back into new compressor? Denso suggests to measure the amount of oil in old compressor and then put the same amount oil into the new compressor but I did not really get anything out from the old one.

Thanks

 

[Daizo]

Daizo, one more question, do you still remember how much refrigerant oil did you end up put back into new compressor? Denso suggests to measure the amount of oil in old compressor and then put the same amount oil into the new compressor but I did not really get anything out from the old one.

Thanks

I don't remember, but I think I just followed what I noted in my original post (quote below), since I didn't get any response or couldn't find any other info.

Compressor oil draining and charge

The manual that came with the compressor says to drain the oil from the old compressor, measure it and put the same amount of oil in the new compressor. Tried to drain the oil from the old compressor. Nothing came out, even after leaving it upside down over night and turning the shaft... No wonder why the compressor was making noise.

Now I don't know how much oil to put in the compressor. I'm thinking about putting the following amount. Any thought?

Compressor: 3.0 oz
Condenser: 1.4 - 1.7 oz (per 2004 FSM, might be less for AC without rear)
Evaporator: 1.4 oz (per FSM)
Drier: 0.7 oz
Rest: 0.7 oz

Used the following as a reference:

Practical tip on compressor oil - Denso

 

[r2550g]

much thanks!!

 

[Pucker5]

Tried a search but came up without result. Anyone know the part numbers for the rear ac
Line. All I can find so far is 8872660630

 

[2020 Rocks]

This is sort of in line with this thread. Wrapping up a tb job, and as I was fishing the lower ac/fan bracket side bolt into position, this thing fell out of that general area just behind/above the oil filter housing. Any ideas what it is of where it belongs?

Edit: I figured out where it goes, but what does the other end connect to? The part that does not have the ac bolt going through the hole....88433B

 

[Gnarwgn]

Hoping to ask a relevant question here vs. being the guy starting a new thread -

First, thanks @Daizo for the great write up, really clears up the general mystery of the parts/pieces/function of the a/c system.

My question - My a/c system is around 90% solid, the missing 10% being the annual recharge that I perform due to a slow leak somewhere. Slow enough where I'd rather spend 15 minutes a year on the recharge than figure it out at this point. Since buying the rig 4 years ago, when a/c is on, I always getting an intermittent/cycling noise that sounds like a mechanical growl/gurgle that kicks on and off which I believe is the compressor kicking on and off. It also seems to suck/command alot of power out of the overall vehicle when a/c is on, which I assume is due to the power required for the compressor to run?

I'm just wondering if the above qualifies as 'normal' based on anyone else's experience? Should I be concerned about the mechanical growl/gurgle from the compressor (wondering if thats indicating that its nearing the end of its lifetime or something)? Should I be concerned about the noticeable loss of power when the system is on (especially when accelerating)? I realize power loss is somewhat normal across all vehicles with a/c systems...just hoping to avoid getting caught on the wrong side of the system retiring on me without notice.

Thanks in advance

 

[flintknapper]

Hoping to ask a relevant question here vs. being the guy starting a new thread -

First, thanks @Daizo for the great write up, really clears up the general mystery of the parts/pieces/function of the a/c system.

My question - My a/c system is around 90% solid, the missing 10% being the annual recharge that I perform due to a slow leak somewhere. Slow enough where I'd rather spend 15 minutes a year on the recharge than figure it out at this point. Since buying the rig 4 years ago, when a/c is on, I always getting an intermittent/cycling noise that sounds like a mechanical growl/gurgle that kicks on and off which I believe is the compressor kicking on and off. It also seems to suck/command alot of power out of the overall vehicle when a/c is on, which I assume is due to the power required for the compressor to run?

I'm just wondering if the above qualifies as 'normal' based on anyone else's experience? Should I be concerned about the mechanical growl/gurgle from the compressor (wondering if thats indicating that its nearing the end of its lifetime or something)? Should I be concerned about the noticeable loss of power when the system is on (especially when accelerating)? I realize power loss is somewhat normal across all vehicles with a/c systems...just hoping to avoid getting caught on the wrong side of the system retiring on me without notice.

Thanks in advance

With hood open, engine idling and A/C on you should be able to detect an audible 'click' as the clutch on the compressor engages. But not 'growl/gurgle' and certainly not from inside the vehicle. The attendant power loss is of concern as well.

Yes, the compressor requires some amount of engine power to operate....but generally it goes unnoticed except that you can briefly see the influence on your tachometer when at idle or stopped. A compressor that is starting to 'seize' could definitely 'pull' heavily on the power output and most often will be noisy as well.

A trip to a reliable shop for inspection might be a wise thing to do. IF the compressor seizes and fails it can send metal particles through parts of your A/C system that would need to be flushed or replaced, so catching a compressor before that happens is always desirable. Also IF you do not turn the compressor off immediately when it seizes or if the clutch pulley bearing seizes....it will take out your serpentine belt and likely leave you stranded.

When you first shut off your vehicle *AC having been run* then it is normal to hear a hissing/gurgling sound as the low and high sides of the system try to equalize, but with the system running...you should not hear anything like that.