24 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHA/C Problem !!!
Reported or suspected cause
compressor was not working
Reported cause
No successful repair reported for this finding.
1
Identified cause
0
Suspected cause
0
Reported fixes
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Discussions that report identifying a cause
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Leading evidence: 'compressor was not working' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'compressor was not working' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Check electrical connections' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Suspected cause
As extanker says going to an extreme value quite often means a wiring issue, and although a sensor could fail, knowing how your car has been played with recently a wiring issue was always the most likely issue.
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Suggestion
If all looks well on the device then its time to check electrical connections.
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suspected cause
As extanker says going to an extreme value quite often means a wiring issue, and although a sensor could fail, knowing how your car has been played with recently a wiring issue was always the most likely issue.
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24 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
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All of a sudden as I was driving back to the office after lunch the A/C stopped cooling. It was working perfectly fine but it became just a fan without cool air.
Shipping the car again 600 km away to the dealer is not an option for now.
Therefore, is there anything I can do or check from my side? Fuse? Belt? Coolant? etc.
If so, how?
I know the fuse box, but how would I identify the fuse? And if it wasn't the fuse, where do I begin?
Oh wow, the problem just piled up for you one by one after the turbo install ya hassaaan.
I hope it's something minor bro, because A/C problems in our weather is a big no no!
Hmm... well, I do see it this way too but not that it can spoil my satisfaction. I am afraid of the envious eyes around me more than anything else!
Anyway, the car came back and all is well except this A/C thing that just came up all of a sudden.
could be the closed system for the freon is not closed anymore. (you have had many hands on the engine) I would begin by checking the pressure in the system to determine if a problem exists. Lack of pressure or excessive pressure can keep the compressor from turning , but the circulation fan will run. Easy to do with a fill kit that is available online. Just connect the device and start the car, and turn on the ac. If all looks well on the device then its time to check electrical connections.
Ghostofholbertspast, thank you for your suggestions... but since I have no car mechanics background, can you explain the following to me?
1) How do I check the pressure in the system? The pressure of what exactly?
2) By the fill kit, are you referring to Freon? It is available here, but where do I fill it in?
Thank you in advance.
This is a very simple process on a car with a front mounted engine. I have done it several times and it only takes a minute to check the pressure of the system.
The first couple pages of this would walk you through checking the pressure...
Recharge Your AC - How To Recharge Your Air Conditioner With Freon - Warm AC Fix Do It Yourself
I have never done it on a mid engine Porsche
. You will just need to locate the low side pressure port and connect a gauge to it (check local auto parts store). The connector should only fit on the low side and will not connect to the high side.
It could have developed a leak in the AC system with the work you had done. When the pressure finally becomes low enough the system should have a safety to stop the compressor from burning out. You could also have a compressor issue...there is a way to jump the compressor to the battery...but I would try a simple test to see if you have normal pressure. You will have to locate the ports...never looked for them on the cayman.
Somewhere I read on the internet that the
Cayman
doesn't use Freon but a different type of coolant... Nevertheless, it seems I am better off shipping it to the dealer... again!
It should be using the R134 refrigerant as all modern cars do (as far as I know). If you were reading about "coolant" that is different from refrigerant. Coolant would be the liquid that keeps the engine from overheating...it is part water and part antifreeze solution. The solution has a lower freezing and higher boiling point than water alone but should not cause a direct issue with your AC...unless your car is really overheating and AC is the least of your concerns at that point. Funny thing, the coolant is actually needed to run your heater. When you are low on coolant your heater will not work properly.
Porsche Club of America, Northeast Region
"Most Porsches since the early 90s have the new type R134a refrigerant that is kind to the ozone layer, but earlier model unless converted do not use this gas using the now obsolete R12 which is almost impossible to find anymore, it has been banned in the USA for years now. Porsche does offer an update kit for most models, it is not cheap but does allow you to convert to the new Freon. Generally most people do this when an air conditioner component fails, as you need to recharge the system anyway. Beware of shady establishments pedaling R12 especially if it is from non-automotive sources such as buildings' AC systems, this can play havoc with your AC".
No, no, no.... thank God! The car is not overheating at all. I was referring to the type of coolant for the A/C. Nothing to do with the engine... it's just the A/C.
While checking the pressure make sure the compressor is running. Maybe nothing more than someone knocking an electrical connection loose. The compressor is on the upper left side. The pulley itself will always rotate but the inside center won't if the compressor isn't running. Sorry but this is tough to see on this engine.
Hassaan,
Easiest thing to check is get someone to sit in the car with the AC off and then switch it on and see if you hear the AC compressor "Kick" in, and if the pump is working or not.
If the pump is working then it may simply mean the system needs topping up, but determining if it just needed refilling or if it has a leak will require a pressure test as the others have said.
Daniel :cheers:
Thank you gentlemen for your contribution.
Yesterday the car to a regular mechanic and while I was on the phone with my dealer, we found the low pressure valve on the left side of the battery. It turned out the car has no leakage and the freon was full. The problem was the compressor was not working.
As per my dealer it could be so many things, therefore I got it shipped back to him... AGAIN!
When I hear from him I'll update this thread accordingly inshallah.
Thank you Nitro, today my dealer found out that my car was claiming the outside temperature was -30 Celsius (mind the minus) while it was above +45 Celsius.
Therefore, the two sensors for outside temperature need to be replaced.
Since my car is imported from the US the sensors locations were different than the ones imported for the region. They dismantled the whole dashboard to locate one... and still they can't find the 2nd
Add to that, they have one in stock while the 2nd needs to be ordered.
I'm trying to wear a straight face... but you don't want to know how I feel. Nevertheless, I am keeping the faith.
Thank God for everything.
Not sure about the
Cayman
but the outside temp sensor is usually in front of the radiator so that it gets ambient air. Might also be in the intake track ahead of the MAF sensor.
The A/C problem is over now... after suspecting it was a sensor problem, dashboard sensor then A/C controller... it turned out to be wiring failure!
I have no idea how could wires fail all of a sudden!
It took more than three days to determine the cause of the A/C issue and I got charged 15 man-hour for it. Hoping this will end my bad luck with my mistress
as a rule when sensors are reading at their max or min it means they are not connected . where was this "bad" wiring ? if you remember i warned you about what happens when your car goes under the knife...welcome to the wide wide world of modding...it aint always smooth
As extanker says going to an extreme value quite often means a wiring issue, and although a sensor could fail, knowing how your car has been played with recently a wiring issue was always the most likely issue.
Unfortunately wires do get damaged when removing parts occasionally, but it is difficult to place blame unless it was working you leave it with the dealer and then doesn't afterwards.
15 hours is way too much for it and shows a lack of ability on the technicians part, especially as they had the readout from the system showing the sensor was out of range. After that it was just tracing wires and performing tests, very poor IMHO......but to hell with it you now have your Turbo-Mistress back!! :dance:
i`m guessing it was a man made problem because wires usually dont go bad without a reason.was anyone working around the front grill area/condensor area. there are a/c switches on high and low sides of lines.
Well, sadly I can say after the turbo installation they were trying to fix the k40 that they never got to get it work in the end.
I pray after gutting the dashboard out to fix the a/c wiring they didn't mess up any other thing... I hate to deploy the rear spoiler when I unlock the doors
I'm trying to be funny and optimistic but to be honest I'm bleeding and worried
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