Nissan Frontier Forum banner

1 - 5 of 5 Posts

·
Registered
Joined
·
6,594 Posts
Discussion Starter · #1 · (Edited)
Driving to work the other day and I followed a 70/80s K5 Blazer (?), it was on 35s Super swamper boggers(?). Lifted with what looked like 10" blocks. What a POS. I think it must have been carbureted and tuned poorly to run a 6'K. Exhaust coming off that thing was so terrible and filled my cab with super RICH exhaust fumes. Couldn't pass it due to traffic, and the fact that he was trying to hypermile the truck. Speed limit 55 mph. He would get down to 45 and as I approached he stomped on the gas and accelerated up to 65, and then coast back down to 45. Every time he stomped on it a plume of smoke would leave his tail pipe, almost like he was rolling coal but with a gas engine.

I tried to turn my HVAC to recirculate so that I did not have to smell his exhaust but it seemed like it was still letting in outside air. This event inspired me to change out my cabin in air filters.

Last night I went and change them out and decided to do some poking around. In most cars, including our Frontiers, the air door between the outside and inside air sits right above/next to the air filter compartment. With the glove box down you can hit the recirculate button and watch a panel open and close. On my truck with the air directed at your feet only the recirc door does not open, but the button lights up. If I flip the air to feet and face or face only the door will open. The temp was on max heat. This must have been what was going on, as in the winter I generally only use the defrost/feet and feet only as it is only 1 click away from easy other. Is this how it is set up or is there something wrong with my HVAC system? I did not try to use recirc and cool air on feet only. In reading the owners manual it recommends that recirc not to be used with heat. But why would heat and face allow recirc and heat and feet not?

Anybody else have knowledge of this seemingly obscure issue.
 

·
Premium Member
Joined
·
7,137 Posts
Just a guess:

Perhaps the engineers figured that there may be moisture (from snow or rain) in the foot area...and that recirculate would merely fog the windows even faster?
 

·
Registered
Joined
·
6,594 Posts
Discussion Starter · #3 ·
Perhaps the engineers figured that there may be moisture (from snow or rain) in the foot area...and that recirculate would merely fog the windows even faster?
Could be. But there is a difference between shouldn't and we won't let you. Wondering if mine is broken somehow or if this is how it is set from the factory.

If anyone wants to drop their glove box and flip some knobs and press some buttons, it would be greatly appreciated.
 

·
Registered
Joined
·
87 Posts
I don't think that yours is broken. My '06 Nismo operated exactly that way from the time I took delivery; my current '16 does the same and IIRC, Nissan does spell it out a little more clearly in the '16 OM than in the '06. I found out pretty much the same way you did; sucking in fumes when on the floor setting. I just got used to setting on recirc when needed and then switching between floor when I wanted heat and face when I wanted to stop outside odors. Back when they were new I seem to recall some chat on the forum about it. Nobody knew the reason for it but it wasn't uncommon among manufacturers.
 

·
Registered
Joined
·
190 Posts
I can confirm this behavior on my 2012. Furthermore, if I put it in face/floor mode with recirc on and turn the knob to floor, the recirc door closes.
 
1 - 5 of 5 Posts
Top