Search found 13 matches

by AGrayson84
Sat Jun 24, 2017 12:12 pm
Forum: Automotive Air Conditioning Forum
Topic: Evaporator temps around 70 degrees, vent temps only 45 degrees at best
Replies: 0
Views: 17

Evaporator temps around 70 degrees, vent temps only 45 degrees at best

Hi everyone, I had another thread on here recently, and after replacing all A/C components this weekend, I have no improvements in outlet temp. Here is the history: 2006 Lincoln Navigator w/rear (aux) A/C. Bought it in April 2016, with 110k on the odometer. Seemed to be taken care of pretty well. Su...
by AGrayson84
Fri Jun 16, 2017 2:21 pm
Forum: Automotive Air Conditioning Forum
Topic: How to properly drain a compressor?
Replies: 4
Views: 97

How to properly drain a compressor?

Hi everyone, I have a compressor that is only a few months old, but I decided to tear down the entire A/C system and start from scratch with filling the PAG oil and refrigerant (I feel there's a chance I added a little more than the required 14 oz when filling the new compressor late last year when ...
by AGrayson84
Tue Jun 06, 2017 6:21 pm
Forum: Automotive Air Conditioning Forum
Topic: 2005 Navigator - Replaced nearly entire A/C system, still won't blow cold enough
Replies: 21
Views: 531

Re: 2005 Navigator - Replaced nearly entire A/C system, still won't blow cold enough

I guess the thing to keep in mind is that it will only hit 45 degrees sometimes . Some days it'll be in the 70's outside, and I'll be cruising down the highway with the A/C on full blast for 30+ minutes and still only see 48 degrees or so. And the amount of time it takes to get to 45 degrees, on the...
by AGrayson84
Mon Jun 05, 2017 7:28 pm
Forum: Automotive Air Conditioning Forum
Topic: 2005 Navigator - Replaced nearly entire A/C system, still won't blow cold enough
Replies: 21
Views: 531

Re: 2005 Navigator - Replaced nearly entire A/C system, still won't blow cold enough

Those that read my prior posts within this thread might recall that when I did a vacuum check, followed by a pressure check (with nitrogen), the system wasn't holding. I actually did several more vacuum checks after the first pressure check, and could see a decrease in vacuum after just several minu...
by AGrayson84
Mon Jun 05, 2017 7:13 pm
Forum: Automotive Air Conditioning Forum
Topic: 2005 Navigator - Replaced nearly entire A/C system, still won't blow cold enough
Replies: 21
Views: 531

Re: 2005 Navigator - Replaced nearly entire A/C system, still won't blow cold enough

You will hear the difference on the first cold start after install. Consider the P/T curve. With 250 psi, the liquid is 147f. With 200 psi, the liquid is 131f Every single thing in the system has an effect. A little too much oil, a slight undercharge because of poor condenser performance, etc. Many...
by AGrayson84
Tue May 30, 2017 8:59 am
Forum: Automotive Air Conditioning Forum
Topic: 2005 Navigator - Replaced nearly entire A/C system, still won't blow cold enough
Replies: 21
Views: 531

Re: 2005 Navigator - Replaced nearly entire A/C system, still won't blow cold enough

Thanks for the info Cusser! Honestly, this is the first vehicle I've had with a fan clutch, since my first vehicle in 1999 when I was in high school, which was a 1987 Dodge Raider haha. Have owned many vehicles since, but all have had electric fans up until this one. Never occurred to me that a fan ...
by AGrayson84
Mon May 29, 2017 5:51 pm
Forum: Automotive Air Conditioning Forum
Topic: 2005 Navigator - Replaced nearly entire A/C system, still won't blow cold enough
Replies: 21
Views: 531

Re: 2005 Navigator - Replaced nearly entire A/C system, still won't blow cold enough

Thanks for the responses again! So I went out a little bit ago today with my phone to video tape the cooling fan. The engine was still nice and hot (not hotter than it should be, just hot) from the drive I just got back from, so I started a video on my phone and then remote started the car. The fan ...
by AGrayson84
Fri May 26, 2017 7:29 pm
Forum: Automotive Air Conditioning Forum
Topic: 2005 Navigator - Replaced nearly entire A/C system, still won't blow cold enough
Replies: 21
Views: 531

Re: 2005 Navigator - Replaced nearly entire A/C system, still won't blow cold enough

Thanks for all of that info Bohica! Really helpful! One thing I still fail to understand is that if the fan clutch was the problem, why will I still not be able to achieve lower outlet temperatures when rolling down the highway? I can feel air being pulled from the front side of the condenser at idl...
by AGrayson84
Wed May 24, 2017 7:14 pm
Forum: Automotive Air Conditioning Forum
Topic: 2005 Navigator - Replaced nearly entire A/C system, still won't blow cold enough
Replies: 21
Views: 531

Re: 2005 Navigator - Replaced nearly entire A/C system, still won't blow cold enough

Thanks once more Cusser... that confirms my fear, mainly because I didn't want to tear the dash apart to get to the evaporator plenum. I was concerned maybe the recirc door may not be closing/sealing fully, or the blend door for mixing the heat/AC might not be sealing fully. I have no typical noises...
by AGrayson84
Tue May 23, 2017 7:56 pm
Forum: Automotive Air Conditioning Forum
Topic: 2005 Navigator - Replaced nearly entire A/C system, still won't blow cold enough
Replies: 21
Views: 531

Re: 2005 Navigator - Replaced nearly entire A/C system, still won't blow cold enough

Thanks gentlemen! I did do another test on Wednesday, but have been too busy to post the results. I went ahead and opened all 4 doors and the rear hatch, set both the front and rear A/C to the coldest setting and the fans at the highest setting, and brought the engine up to around 2,000 RPM. The A/C...

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