A/C performance during this heat wave

[Brisoup1]

I believe the lock/unlock and remote start from the app are only free for 1 year. There are some safety stuff like the SOS service, etc. that's 5 years, but all the good stuff expires after the 1st year, and if I recall, it's quite expensive (almost $300/yr.) to continue the service.

That figures. On my G

Used the uconnect app yesterday and hit the remote start option and had the "wait 30 seconds or more" message. Got to the truck 10 minutes later and the engine never started and the cabin was hot as h%ll. That app is so hit and miss. I'm definitely not going to waste a dime on it once my free trial ends.

For me, it depends on wheather my phone is getting a Cell tower signal. If my signal is weak, which often happens if I'm in a building with alot off walls, Uconnect will not get the message to your truck.

 

[cotonymopar]

If only the guys and gals that say their AC works good would post actual temps it would become more clear whether some trucks have proper functioning AC’s or they are just physiologically more comfortable at warmer temps than others.

I mean, if it is 100 degrees outside, and mya/c is blowing 58.... that pretty damn cold compared to outside...

 

[rrbhokies]

For me, it depends on wheather my phone is getting a Cell tower signal. If my signal is weak, which often happens if I'm in a building with alot off walls, Uconnect will not get the message to your truck.
[/QUOTE]
That's a big thing too, and it's not just where you are located when you send the signal. The truck has to be someplace too that can receive the signal. I don't know that it would work if for say your truck is in an underground parking garage.

That said, I've been hit or miss with the app. I can be in my house and the truck outside and the app will not be able to connect to the truck. It's just not a very reliable service. And when it does work, I've seen it take 2 minutes or more just to send the signal to lock the doors. I'm not impressed at all with the UConnect app and service.

 

[Billet1500 4x4]

I mean, if it is 100 degrees outside, and mya/c is blowing 58.... that pretty damn cold compared to outside...

Mine blows 44 degree air both sides in 105 degree weather with about 25% relative humidity. I'd be fit to be tied if it was barely blowing 58 degrees. But that's @ColoradoCub's point, comfort cooling is subjective, many people may say their AC works great when it's working exactly the same as someone that says their AC sucks. Vent temps with the correlating ambient temp/humidity ratio are the only true apples to apples comparison.

 

[Jtr]

For me, it depends on wheather my phone is getting a Cell tower signal. If my signal is weak, which often happens if I'm in a building with alot off walls, Uconnect will not get the message to your truck.

I wish I could use this as a possible reason why it did not operate. But the truck had no obstructions (sitting out in the middle of an outdoor mall parking lot) and I had a great 4g signal at the time. One thing I do recall is that the uconnect app was really slow to load on my phone so I surmise it was an issue with the app.

 

[Differia]

ine blows 44 degree air both sides in 105 degree weather with about 25% relative humidity.

Man that's pretty tempatures. You dont use the valve or clamp off the heater core?

 

[ColoradoCub]

Mine blows 44 degree air both sides in 105 degree weather with about 25% relative humidity. I'd be fit to be tied if it was barely blowing 58 degrees.

So does mine.......with the valve in place blocking hot coolant! ...grin.

I tested mine before the valve mod and at 98 deg it was blowing 59 deg, that didn’t cut it!

 

[Billet1500 4x4]

Man that's pretty tempatures. You dont use the valve or clamp off the heater core?

Pshh, I have that SOB valved off my friend the best I could get before was 50 drivers, 45 passenger after having the system evacuated tested, recharged and the AC TSB performed which was ok but was not OK was at idle the temps would climb to 65 degrees on the drivers side and about 50 on the passenger side, with the valve at idle it stays about 48 or 49 both sides and 44 during normal driving conditions. The evap core temperature is limited by a sensor to somewhere about 42 degrees or so which yields 45 degree vent temps. The system can get colder by tricking the evap core sensor into thinking the core is warmer than it actually is but this would take a toll on the life expectancy of the system, you'd end up with higher high side pressure and lower low side pressure and possibly have compressor cycling issues because of the low side pressure switch which would suck because typically the clutch will not reengage until the low side pressure rises will above it's normal operating pressure. what I mean by this if it kicks out at 15 psi and normally operates at 20 psi it might not reengage til 30 psi to make sure there isn't an issue which means no AC in the mean time.

 

[XDBrad]

Mine blows low 40’s regardless of the outside temp. Thank God for the A/C hack! Clamp works like a champ, after 10 minutes or so I turn it off LO to ~68 and it still freezes your arm.

 

[Differia]

Pshh, I have that SOB valved off my friend the best I could get before was 50 drivers, 45 passenger after having the system evacuated tested, recharged and the AC TSB performed which was ok but was not OK was at idle the temps would climb to 65 degrees on the drivers side and about 50 on the passenger side, with the valve at idle it stays about 48 or 49 both sides and 44 during normal driving conditions. The evap core temperature is limited by a sensor to somewhere about 42 degrees or so which yields 45 degree vent temps. The system can get colder by tricking the evap core sensor into thinking the core is warmer than it actually is but this would take a toll on the life expectancy of the system, you'd end up with higher high side pressure and lower low side pressure and possibly have compressor cycling issues because of the low side pressure switch which would suck because typically the clutch will not reengage until the low side pressure rises will above it's normal operating pressure. what I mean by this if it kicks out at 15 psi and normally operates at 20 psi it might not reengage til 30 psi to make sure there isn't an issue which means no AC in the mean time.

Yah looks like were all in the same boat with the A/C design.
I been using the clamp the last week. I just couldn't take the heat anymore.
I need to purchase the parts for the valve.

 

[Billet1500 4x4]

Mine blows low 40’s regardless of the outside temp. Thank God for the A/C hack! Clamp works like a champ, after 10 minutes or so I turn it off LO to ~68 and it still freezes your arm.

I leave mine on low and just turn the fan down to 2 or 3, nice and cool with no blower noise

 

[Billet1500 4x4]

Yah looks like were all in the same boat with the A/C design.
I been using the clamp the last week. I just couldn't take the heat anymore.
I need to purchase the parts for the valve.

This little bad boy is the ticket. Barbed and it has a 150 PSI working steam pressure. I've seen somewhere people comment on the concern with anit-freeze but pex valves are used in radiant heating and snow melt systems all the time which run ethylene and propylene glycol to prevent freezing they typically do not see the temperatures that cars produce which is why this valve is much better than the ones of the shelf at lowes or home depot that are typically not steam rated or made for temps above about 180 F.

Amazon.com: Everflow Supplies 615P012-NL Lead Free Pex Full Port Ball Valve with Tee Handle, 1/2-Inch: Home Improvement

Buy Everflow Supplies 615P012-NL Lead Free Pex Full Port Ball Valve with Tee Handle, 1/2-Inch: Ball Valves - Amazon.com ✓ FREE DELIVERY possible on eligible purchases

www.amazon.com

 

[py4163]

Dropped my off my 1500 at the dealership today for 2 recalls, tailgate open warning coming on every time I hit a bump in the road and A/C not cooling well. Yesterday while driving with temp gauge in the center vent. The gauge was reading 60 degrees with 91 outside, not cooling well at all. I turned the heat up momentarily then back to max cool. The vent temp went down to 52 degrees within a couple of minutes. Either the hot water is not shutting completely off or one of the doors isn't closing all the way depending on how the system is designed. We'll see what they do about it when I pick it up in a couple of days.

 

[Billet1500 4x4]

Dropped my off my 1500 at the dealership today for 2 recalls, tailgate open warning coming on every time I hit a bump in the road and A/C not cooling well. Yesterday while driving with temp gauge in the center vent. The gauge was reading 60 degrees with 91 outside, not cooling well at all. I turned the heat up momentarily then back to max cool. The vent temp went down to 52 degrees within a couple of minutes. Either the hot water is not shutting completely off or one of the doors isn't closing all the way depending on how the system is designed. We'll see what they do about it when I pick it up in a couple of days.

There is no bypass valve in the heater core loop. It's a blend door issue, well known with no fix.

 

[py4163]

There is no bypass valve in the heater core loop. It's a blend door issue, well known with no fix.

Thanks for info, I'll see what they say when I pick it up and test their knowledge a bit.

 

[Differia]

This little bad boy is the ticket. Barbed and it has a 150 PSI working steam pressure. I've seen somewhere people comment on the concern with anit-freeze but pex valves are used in radiant heating and snow melt systems all the time which run ethylene and propylene glycol to prevent freezing they typically do not see the temperatures that cars produce which is why this valve is much better than the ones of the shelf at lowes or home depot that are typically not steam rated or made for temps above about 180 F.

Amazon.com: Everflow Supplies 615P012-NL Lead Free Pex Full Port Ball Valve with Tee Handle, 1/2-Inch: Home Improvement

Buy Everflow Supplies 615P012-NL Lead Free Pex Full Port Ball Valve with Tee Handle, 1/2-Inch: Ball Valves - Amazon.com ✓ FREE DELIVERY possible on eligible purchases

www.amazon.com

Appreciate it!!

 

[Brisoup1]

I wish I could use this as a possible reason why it did not operate. But the truck had no obstructions (sitting out in the middle of an outdoor mall parking lot) and I had a great 4g signal at the time. One thing I do recall is that the uconnect app was really slow to load on my phone so I surmise it was an issue with the app.

Sometimes you need to uninstall the App then Re-install it. It also could be a issue with the cell phone itself. Your phone may be running out of memory either because you have alot of files on it or alot of clutter.

 

[Laramiepete]

One trick I use is to open the bed window when first starting. This helps evacuate the super hot air in the car and improve the time that it takes for the air to start blowin good and cold.

 

[ldoh]

Even if one is happy with the poor a/c vent temp output, it's difficult to argue any benefit of botched stock a/c having to work so hard to achieve a marginal output. Better to run the a/c at lower settings with lower fan noise, better temp output, and less engine drag.

 

[RamCares]

Dropped my off my 1500 at the dealership today for 2 recalls, tailgate open warning coming on every time I hit a bump in the road and A/C not cooling well. Yesterday while driving with temp gauge in the center vent. The gauge was reading 60 degrees with 91 outside, not cooling well at all. I turned the heat up momentarily then back to max cool. The vent temp went down to 52 degrees within a couple of minutes. Either the hot water is not shutting completely off or one of the doors isn't closing all the way depending on how the system is designed. We'll see what they do about it when I pick it up in a couple of days.

Hi py4163,

We hope your appointment goes well. We're available via private message if you need any additional assistance.

Lydia
Ram Social Care Specialist