Cabin Pressure Headache

[hooked]

This doesn*t explain the ear popping but maybe check for exhaust leaks that might be allowing carbon monoxide to enter the cabin?

[shadonoz]

Shades of the Cuban embassy!
1-how long has this been happening?
2-is there ANY sign of it in other vehicles?
3- is there NO sign of it anywhere but when you're in your car?

[Colorado_2018]

Shades of the Cuban embassy!
1-how long has this been happening?
2-is there ANY sign of it in other vehicles?
3- is there NO sign of it anywhere but when you're in your car?

1. Really since day one but did not connect the dots it was the car. Purchased in early Nov '18. Thought it was the speakers. Then thought it was a vibration. Dealer corrected the vibration by balancing the tires. Still got the headaches and really just started to realize it's something maybe with air pressure.

2. Never happens (or have ever happened) in other vehicles and I drive a lot of different vehicles. I've flown planes and never had it, even during crazy (to me) maneuvers.

3. As soon as I'm out of the car I feel almost instantly better. Headache is gone within 15 minutes completely.

[jthj]

Exhaust leak is also a possibility. I would strongly suggest that you have the dealer check the vent in back and exhaust for leaks.

CO can kill you so not something to take lightly.

[sm1ke]

Exhaust leak is also a possibility. I would strongly suggest that you have the dealer check the vent in back and exhaust for leaks.

CO can kill you so not something to take lightly.

I second this. Get this checked out first and foremost, as soon as possible.

[Colorado_2018]

I second this. Get this checked out first and foremost, as soon as possible.

How does the dealer check for this? And how do I know they are checking it properly?

[ColoradoDriver]

Thirded. Having been exposed to carbon monoxide while watching TV and playing video games on a laptop when I was maybe 15 in the vicinity of a malfunctioning/leaking furnace and developing a bad headache and fighting extremely hard to not pass out when I went upstairs all the while vision getting increasingly fuzzy like the old channel 3, it's definitely something I would want to rule out first. That crap is no joke.

[wlong01]

Crack one of the rear windows and see if the problem goes away.

[jthj]

How does the dealer check for this? And how do I know they are checking it properly?

You don’t need to tell the dealer how to check for leaks. They know how to do that. Just tell them the symptoms you’re experiencing and ask them to check for leaks and the vent allowing air out in case it’s blocked.

[hooked]

There are also kits you can buy at stores like Home Depot to detect carbon monoxide if you want to check it,out yourself. I have no idea how accurate they are and definitely recommend you get it checked out at the dealer.

[Colorado_2018]

Update: I kept the air on recirc on the way home from work (as suggested earlier). Problem virtually eliminated. The base (I turned it up) sounded good, no headache, no ear popping. Pulling into my neighborhood, I turned to fresh just to see and ears started to pop almost immediately, along with pressure in my head with the headache starting.

I wouldn't believe it if I read it from someone else but that's what's going on. Very strange. I will say it was great to drive with no weird headache etc...

Ironically, I've been a fresh air always on guy for the last 20+ years. Not sure what this all means but I guess the dealer will need to check because I'm not a fan of recirc.

[jthj]

It means the vent that lets air out is blocked or stuck shut in my opinion.

[ColoradoDriver]

It means the vent that lets air out is blocked or stuck shut in my opinion.

Agreed.

I use recirc a lot. Filter can't get rid of all the stinky air when you get behind it.

[sm1ke]

Agreed.

I use recirc a lot. Filter can't get rid of all the stinky air when you get behind it.

That's one of the few times I'll use recirc, lol. I also use it if I need to heat the cabin quickly.

[Nevada CX5]

So, question for other 17/18 owners. Is this a byproduct of Mazda trying to seal out the noise? Do you have to give quite a bit more force to close the last door with the widows rolled up?


Yes