I have not - if that’s the oner under the dash?
On the 02' model I believe the blower was still behind the battery and that can be pulled for inspection.
I have not - if that’s the oner under the dash?
I don't like the TJ FSM's pressure chart because apparently whoever wrote that chart thinks Jeeps can violate the laws of physics - R134a is R134a and the high-side pressures the FSM wants to see are way above any other reference I've ever seen. I suppose they're covering a 10 degree step instead of five, but it still trends high. Every other FSM I've seen is in line with this chart:
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With that said if you're at 85 degrees ambient then I'd follow the flowchart on the next page of the FSM starting with "normal pressures but temperatures too high". Oil overfill seems unlikely unless you've used one of those combination cans with oil and R134a in it, so I'd double check the blend door control and possibly the door itself to make sure it's not mixing heated air.
After you verify that then I'd plan on getting the system evacuated, and open it up to see what's in there.
I hate that chart for taking no account whatsoever of humidity. The system is going to react completely differently to an 80 degree ambient in Florida vs the same in Utah. If it's humid, you'll have a warmer temp coming out and higher pressures at both ends because the system is having to put more work into the latent heat load of condensing the water vapor in the air.
If a hose blew you might of lost some oil and a lack of oil. Am kinda shooting in the dark here. Did you add any oil when you replace the hose?
That’s true but we’re talking Arizona with maaaybe 15% humidity, and vent temps of 80. Somethings wrong here-aside from the chart.
I need to fix my AC too.
Read everything in this thread and have zero idea what you all are talking about.
When I bought the TJ PO had installed a HVAC control unit that had no AC option. I replaced that with a new unit. AC blows hot.
I used the commercially available recharge canisters and it took all of a single blast for the built-in gauge to show full. AC still blows hot. I can hear the compressor clicking on and off.
I think I'll bring it to my corner mechanic and let him do it.
I’m sure I lost a little, hard to quantify though. Hose didn’t “blow” per se but did fail. I added some oil, again I’m blind though because there’s no way to know where I’m at now.
The "commercially available recharge canisters" are a band aid at best, and in the situation you describe would not make any difference. It takes special equipment to properly charge an A/C system. The system has to be leak tested and vacuum purged prior to charging. In your case there is likely a leak somewhere, or a bad component - otherwise the PO may not have swapped the controls, but who knows.
In general, any A/C unit low on pressure has a leak somewhere, which has to be found and corrected. Unless you have an A/C vacuum pump, manifold gauges, leak detection equipment (none of which are inexpensive), and the knowledge to use the equipment, you are better off having a professional take a look.
Another piece of advice - I've seen you ask this question in at least one other thread. You are more likely to get help if you start your own thread and ask the question.
Good luck.
The "commercially available recharge canisters" are a band aid at best, and in the situation you describe would not make any difference. It takes special equipment to properly charge an A/C system. The system has to be leak tested and vacuum purged prior to charging. In your case there is likely a leak somewhere, or a bad component - otherwise the PO may not have swapped the controls, but who knows.
In general, any A/C unit low on pressure has a leak somewhere, which has to be found and corrected. Unless you have an A/C vacuum pump, manifold gauges, leak detection equipment (none of which are inexpensive), and the knowledge to use the equipment, you are better off having a professional take a look.
Another piece of advice - I've seen you ask this question in at least one other thread. You are more likely to get help if you start your own thread and ask the question.
Good luck.
I’m sure I lost a little, hard to quantify though. Hose didn’t “blow” per se but did fail. I added some oil, again I’m blind though because there’s no way to know where I’m at now.
In general, any A/C unit low on pressure has a leak somewhere, which has to be found and corrected. Unless you have an A/C vacuum pump, manifold gauges, leak detection equipment (none of which are inexpensive), and the knowledge to use the equipment, you are better off having a professional take a look.
I would have it professionally evacuated and recharged. The equipment at my dealership is much better than the equipment I have at my disposal at home. You might just fix the problem with a proper evac and recharge.
I’ve been weighing the idea. It’s hard to wrap my head around paying someone a high price to do something fairly simple. There isn’t much I farm out, whether the vechicle is air, land, or sea.
In your situation, I'd go that route.
I’m considering a warranty replacement of my compressor, performing a complete flush and starting from scratch.
Since the PO replaced the HVAC control unit I would make sure the hoses are connected properly, the blend door is operating properly and the actuator motors are operating properly along with verifying there are no vacuum leaks in the A/C controls.When I bought the TJ PO had installed a HVAC control unit that had no AC option. I replaced that with a new unit. AC blows hot.
I used the commercially available recharge canisters and it took all of a single blast for the built-in gauge to show full. AC still blows hot. I can hear the compressor clicking on and off.
I think I'll bring it to my corner mechanic and let him do it.
Good luck with a compressor warranty, would be a very rare occurrence considering their disclaimers.
Who is? Rock auto doesn’t seem to be giving me any grief so far
Rock Auto ran me in circles.