Another interesting 07 observation....

[roperteacher]

Hey there!! Seems like I am still learning the quirks of the new 07!! Today I ran the AC ( Like I always do) but I forgot to turn it off prior to shutting the truck down. NOrmally I like to turn the AC off about 1/4 mile from my house or stopping location and leave the blower on. I heard this lets the engine cool down and also keeps moisture from staying in the system and getting that "Moldy" smell later on. I noticed I had a fairly good sized puddle of fluid under the FRONT of the truck, kind of near the Water pump area... After my heart returned to it's proper place and I quit cussing, I stooped down and come to find out it is just CLEAR, COLD , water! Made me feel better. I had never heard of AC water dripping there before so I headed over to the dealer to ask what they thought... .



THey said that anywhere along the aluminum AC lines condensation can form and pool... Not just from the back at the Evaporator. . Especially in Humid climates ( It's dry here but has been humid lately)... . TOld me that if it is clear water, and the AC is comfortable ( It actually can get a bit cold at times!! :-laf) THat all is well... .



Anyone ever heard of this. . ??? I am just releive it is not coolant ... LOLOL I even tasted it!!

 

[smd]

Thats normal, all cars trucks may have a puddle.

 

[Gary - K7GLD]

Various parts in the A/C system can gather frost, and then drip when it melts - the Accumulator/Filter is usually one of the larger areas - sounds like you found one of them - no worries...

 

[roperteacher]

Thanks guys! I just had never had a vehicle pool up condensation water out the FRONT of the vehicle before... As usual my 07 does drip from the evaporator by the passenger wheel well, but never saw it from the front of the engine before. . LOLOL I have decided from all my experiences that Clear cold water drips are not a big deal! LOLOL:-laf

 

[roperteacher]

Gary was right... I just happened to trace the drip all the way from the evaporator, down a bigger black hose/line that curls up on top of the water pump area. . The moisture just made it's way all the way along that line and got to it's lowest point and dripped!! Oo.

 

[Boondocker]

The higher the humidity, the bigger the puddle. I do the turn off the condensor early trick too.

 

[roperteacher]

I live in HOT DRY southern calif so who knows why... As long as it is CLEAR water thats dripping. . no big deal!! :-laf

 

[AKaiser]

NOrmally I like to turn the AC off about 1/4 mile from my house or stopping location and leave the blower on. I heard this lets the engine cool down and also keeps moisture from staying in the system and getting that "Moldy" smell later on.

The first makes sense. The second assumption, I'm not so sure of. Are you running recirculated, therefore dry, cabin air back thru the system? I would think if you wanted to prevent mold, the best thing would be to turn the heat on and dry it out before you shut it down. Just turning on the blower alone would just put more moist ambient temperature air in the system. Cold air holds less moisture than hot, which is why I would think the hot air would remove any moisture from the system. Thoughts?

 

[roperteacher]

Kaiser, you make a good point. Actually today I was running recirc, then I switched it over to Fresh air a few miles from the house, then at my normal spot, just turned the AC off. By the time I got home it was sucking in some hot outside air. . SO your right, that is probably a better way to keep the mold out!! Note taken!

 

[LHanks]

I don't know guys, but I'm born & bred from SW Louisiana, owned different vehicles for over 30 yrs and have put over 100K on most of them. And on every one, the A/C is never turned off (except the couple of months that we get a little cool weather down here) and I've never experienced any problem with mold or musty smells. Maybe I've just been lucky.

 

[DerekW]

i went through some automotive schooling and while in the a/c class where i was occupied with other things i think they told us that a/c sytems work by using heater to dry out the air then chill it as it blows past the evaporator. this is prolly to keep the a/c system from making water behind the dash or get rid of the moldy smell. I honeslty dont know for sure that was the class I was in maybe 4 days of the 3 weeks but never paid attention when i was there. but ever noticed the air the a/c system blows out is dry and has no humidity????

 

[BGott]

Uh, no. A/C systems de- humidify the air when the moisture condenses on the cold evaporator coil fins. The defroster works by running the A/C and the heater at the same time, it de- humidifies the air across the evap and then heats it before blowing it across the windshield.