Ford Explore recall.

Fordlover wrote:
Honestly it could be a design defect, but one wonders why it seems to affect the police units disproportionately. There are far more civilian explorers than police units on the road. Whatever the cause I hope they figure it out soon.

There are probably far more hours logged sitting in an idled vehicle in a police car versus a civilian car. A police car will probably run the entire 10 hour shift, often with the officer sitting inside, idling for long periods during traffic stops, road closures, report writing, etc.

I'm sure that has some influence on how much exhaust leaks into the cab. No production vehicle is completely sealed from exhaust entering the vehicle. Certain conditions are likely to exacerbate the problem though.