A/C Recirculate ?
 

Is is normal to still get a little outside air inside the cab when the AC is on recirculate? (For example I am behind a diesel bus, I put on recirculate but can still smell exhaust even though its less than when AC is on normal).

Does anybody else here with a 07 tahoe, suburban, or avalanche experience this? (No offense to older models, I am just try to compare apples with apples and since the 07 is completely new, I dont have anything else to compare it too. I know its not a GM thing, my wifes cadillac does not do this. Thanks for your input.

RE: A/C Recirculate ?
 

Anybody? Let me know either way. I dont want to b!tch to the service advisor if its normal. Thanks

RE: A/C Recirculate ?
 

I think it is a safety feature to allow some fresh air in no matter what setting you are in. Even with re-circ you will get some air. It is no suprise that you got some smell with it in that setting.

RE: A/C Recirculate ?
 

Normal! All my cars do this, and I hate it. I like the recirc mode for that reason, to keep the stinch of the vehicle ahead of me out of my car. But t doesnt quit work like that!

RE: A/C Recirculate ?
 

Its sounds like what I am experiencing is normal, but I am curious though. How many of you 07 owners can smell anything from the outside while on Recirculate? Maybe I have a K9 nose or something wierd.....

RE: A/C Recirculate ?
 

I get the same thing all the time. Very frustrating when you are following a P.O.S. smoking all the way down the highway and you have to breathe that air while the windows are all rolled up.

RE: A/C Recirculate ?
 

Yeah, but without the fresh air diverter door allowing about 10% fresh air to enter the cab a truck full of pax can consume the available 02 in a real short amount of time, and then it starts getting very stuffy as the C02 levels climb.

RE: A/C Recirculate ?
 

So its a safety issue to be sure you have enough oxygen for those long road trips AND in addition to bringing in fresh air to keep CO levels lower if you have a CO leak?

Also, Maybe the reason I don't smell anything in my wife's cadillac (obviously a GM product as well) is I believe her car has some sort of filter for outside air.

RE: A/C Recirculate ?
 

Yea, but that's when the pink elephants start to dance...:D

RE: A/C Recirculate ?
 

Kind of makes one wonder why our 2007 Tahoes didn't have a cabin air filters.