This is not a hard thing to measure and determine.
“Ford’s investigation has not found carbon monoxide levels that exceed what people are exposed to every day.”
That is not the comparison that matters. The comparison is to other cars.
That sentence does make it sound like Ford has a problem.
Never had a CO problem in my Tesla...
*ducking*
There was a customer satisfaction repair done on mine for this reason (it’s a 2013 ex). Ford sent out letters claiming the same thing - that there was no excessive carbon monoxide they found during their testing for the numerous complaints they had.
Even after this service it still stinks in the cabin if I accelerate hard. I can reproduce the problem easily. Problem is, the rear hatch seals leak and the exhaust literally gets sucked up into the hatch when driving. There are several things they check when they do the service; they patch seams and holes on the uni body with mastic, but are loath to change the rear seal for some reason. Also, I think a lot of the dealerships aren’t performing the entire TSB because they have to pull a lot of stuff apart to do it correctly, including some body panels (if I recall what I read correctly).
The claim by the dealership that did this for me free of charge, plus a free rental stated that it was mostly upfitted vehicles that were really problematic (cop cars with all the racks and gun safes, etc.) where the upfitter drilled holes into the uni body for attachment and never sealed them, yadda, yadda, yadda.
The other issue is the fresh air intake is around the rear tire wells, so that is a big problem too.
I would hazard that if there was a valid problem, as bad as the complaints make it, their own sources would have some definitive results instead of having to refer to Ford’s analysis.
It could also be that other cars have problems too, but it just hasn’t crossed the threshold to detection. Which can be high.
At the right level such poisoning can apparently go undetected, and accumulate, until it is too late.