Author Topic: A/C was R12 then R134a - now what Hychill 30.  (Read 647 times)

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Offline Vettech

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Re: A/C was R12 then R134a - now what Hychill 30.
« Reply #12 on: March 13, 2019, 04:38:00 PM »
I'm not interested in all this tom foolery etc etc.


I'm now NOT happy................
Vettech.

Offline Bfit

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Re: A/C was R12 then R134a - now what Hychill 30.
« Reply #13 on: March 13, 2019, 04:58:46 PM »
that's being a some what   poultry
Bfit
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George Orwell 1984

Offline Vettech

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Re: A/C was R12 then R134a - now what Hychill 30.
« Reply #14 on: March 15, 2019, 04:07:51 PM »
Well  evacuated the system to -30" mercury, held vac over nite.

Wacked in 1/2 a can of gas.

System started running, cool vent air, but was cycling very quickly, so put in more gas, system then shut down.

Switch off, look for cause, no power to  comp clutch.

With engine on,  A/C on, hot wired it, clutch & cycling switch & hi press switch all OK.

But no 12volts coming from the A/C Clutch Relay, in fact I cant even find the relay ????

So! Currently I have two (2) issues. (For now!).
1. System short cycling, could be low gas, but since it is sucking down into neg values, it's most likely a blockage, Orific tube 1st suspect.
2. No Power, need to find the relay and fix this first.

To fix, clean, replace the orific tube requires opening the system, loss of gas, re-vac the system etc etc....

DOES ANY ONE KNOW WHERE A/C RELAY IS  .?
Vettech.

Offline Bfit

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Re: A/C was R12 then R134a - now what Hychill 30.
« Reply #15 on: March 15, 2019, 04:20:43 PM »
They say follow the money .
In this case follow the cable from the clutch , one! would think it would go to the relay  if you power up the clutch end  and follow the live wire you should come to the relay sooner or later.

Now you being an ex telecommunication engineerical  person I would think you may have a tone generator that just may help find the elusive relay.

Bfit
Freedom's just another word for nothin' left to lose
George Orwell 1984

Offline Vettech

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Re: A/C was R12 then R134a - now what Hychill 30.
« Reply #16 on: March 15, 2019, 04:58:22 PM »
Now here I was saying what a good Engineer you are, I may have to always include the word Mechanical.

We dont want 12volts going the wrong way, cause somewhere in there is the ECM.

However an Oscilator, sorry tone generator, in the form of an "F Set"  now that is worth some thought. The special detector and reciever can pick up the in-audible tone inside the loom, doors, walls floors. Ummmm magic.

Oh! I can see it - over the other sidè of the garage, over the 87, past the boxes of 3000 tile, over the 78 where the killer chooks roost, ummm where are the mice hiding, seems tobe less of them since we got the new cat.....

Na - this is all too much for me, I think I'll go peel some spuds for tea before the Boss gets home.
   are
Vettech.

Offline Bfit

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Re: A/C was R12 then R134a - now what Hychill 30.
« Reply #17 on: March 15, 2019, 05:32:46 PM »
There is a reason I have most of the wiring out of my C3 dash . something to do with a brown wire being  plugged into a black wire at night in the dark.

Turn ignition on, and then brown wire is now live to earth  interesting results.
first there is a sensual pollution, ( a smell ) then there is  visual pollution ,( smoke ) then  some audible pollution ( Noise )
then there is a decision, turn the f'er off, then there is the lets redo the wiring scenario. 
Bfit
Freedom's just another word for nothin' left to lose
George Orwell 1984

Offline MY081

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Re: A/C was R12 then R134a - now what Hychill 30.
« Reply #18 on: March 15, 2019, 07:33:25 PM »
KILLER  CHOOKS !!!!!!!!!!

Offline Bfit

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Re: A/C was R12 then R134a - now what Hychill 30.
« Reply #19 on: March 15, 2019, 07:37:20 PM »
KILLER  CHOOKS !!!!!!!!!!

Pluck m
Freedom's just another word for nothin' left to lose
George Orwell 1984

Offline Vettech

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Re: A/C was R12 then R134a - now what Hychill 30.
« Reply #20 on: March 15, 2019, 09:28:22 PM »

Yes Ray, not all chooks are fledged the same.

Those baked lemon greek style spuds were great.
Vettech.

Offline Vettech

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Re: A/C was R12 then R134a - now what Hychill 30.
« Reply #21 on: March 16, 2019, 01:14:51 PM »
Thank God for Google.

It appears the newer the cars the more sophisticated they are.

So after reading some more it appears that the short cycling may be induced by the ECM.
It detects low gas and goes into a rapid cycling phase to test gas level, to double check if low it will then not run the Comp so as to ensure the Comp is not stuffed.

This cant be changed unless the Battery is removed so as to reset the ECM. This is better than opening the system.
If it stops raining - I'll give this a go. stayed tuned.

BUT FRESHLY JUST ADDED.
A check of the car, shows the A/C controll head has a flashing light,  interogation of the code indicates "09" - "Low Gas". Yes Yes Yes.....
Rain go away......
Vettech.

Offline Bfit

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Re: A/C was R12 then R134a - now what Hychill 30.
« Reply #22 on: March 16, 2019, 01:47:30 PM »
Thank God for Google.

It appears the newer the cars the more sophisticated they are.

So after reading some more it appears that the short cycling may be induced by the ECM.
It detects low gas and goes into a rapid cycling phase to test gas level, to double check if low it will then not run the Comp so as to ensure the Comp is not stuffed.

This cant be changed unless the Battery is removed so as to reset the ECM. This is better than opening the system.
If it stops raining - I'll give this a go. stayed tuned.

BUT FRESHLY JUST ADDED.
A check of the car, shows the A/C controll head has a flashing light,  interogation of the code indicates "09" - "Low Gas". Yes Yes Yes.....
Rain go away......

I think your spending to much time alone with this car.
Bfit
Freedom's just another word for nothin' left to lose
George Orwell 1984

Offline Vettech

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Re: A/C was R12 then R134a - now what Hychill 30.
« Reply #23 on: March 16, 2019, 02:37:11 PM »
Maybe, I feel better now esp after a nice serve of Cabbage rolls with Lemon Tater for lunch.

Oh! NO NO NO a tow truck has just rolled up with the Boys Beamer on the back. Why me ?

 :grr: :banghead:
Vettech.