strikeraj

Hi all


Problem:
Just purchased a used is350. Now temperature is higher and I tried to turn A/C on, no cold air at all


Symptoms:
1. No cold air standing or moving
2. A/C light does not flash, either on or off
3. Fan not turning when A/C on
4. When I look in the inspection window near the high pressure port, I see nothing moving
5. Checked all A/C related fuse and all intact


Questions:
1. Do I simply have a leak or no 134a charge in the system?
2. How do I inspect if compressor is running or not? (great if there is a picture with pointer showing what to look)
3. In our IS, does fan and compressor turn on if charge is low?


Thanks

strikeraj

Borrowed a refill kit hose that has a gauge on it and hook it up to low service port.
Of course, there is no pressure in the system.

Gville350

iTrader: (10)

I know nothing about A/C systems, but that would mean a leak somewhere in the system, right?

strikeraj

Yea this is my guess after checking the pressure (assuming the cheapo gauge on the hose works even without a canister attached)

Going to visit an AC shop and figure out

Gville350

iTrader: (10)

Let us know what they say and what the fix was.

Good luck!

strikeraj

so the bad news is.... compressor is kaput
it is leaking at the shaft seal
The tech says when he tries to charge the system it just start hissing massively between the compressor and the clutch.


now the questions is
is it difficult to just replace the shaft seal?
if that cannot be done, how hard is it to DIY replace the compressor and get it charged by a shop?
Is there other parts I should replace at the same time?


Thanks

Gville350

iTrader: (10)

Never rebuilt an A/C compressor; won't have anything for you on this one. Perhaps search for an online video with someone replacing one on a similar Denso unit will be enough for you to continue.

Best of luck on the repair!

strikeraj

Can anyone please share the torque value for all the bolts on the compressor?

strikeraj

anyone please?
I don't want to strip the thread by not knowing the torque.
really appreciate any help.

RXGS

iTrader: (2)

Had to replace the compressor on my IS at 69k miles and paid $1300 at the dealer, apparently its not that uncommon of a problem.

strikeraj

was it also leaking from the shaft seal?

RXGS

iTrader: (2)

I wish i could tell you, but I know they tried just recharging it and it leaked out. They ended up just replacing the whole compressor

strikeraj

I see, thanks


Anyone on the torque spec please?

JoeySway

Might not hurt to purchase a 2 day subscription from TIS, I believe they have all of the all of the repair specs. Someone might be able to chime in.

https://techinfo.toyota.com/

strikeraj

So everything fixed now and A/C is blowing cold

Compressor imploded and seized causing the lost of A/C

Replaced with new compressor and condenser then take it to a shop to vacuum and charge.