Cab rear vent

Asked by Jul 28, 2013 at 05:48 PM about the 2008 Ford F-450 Super Duty XL Crew Cab

Question type: Maintenance & Repair

I have an '06 450 extended cab 6.0 liter diesel. When a/c is on low or normal, the rear cab vents allow cold air to pass through the rear seat and exhausts outside the rear cab and cab never cools off.. It doesn't do that on MAX. Can I tape those vents closed or close them with tape and not have an carbon dioxide issue?

1 Answer

69,495

No. Beginning in 1973 vehicles are required to have fresh air moving through them at all times for the reason you mentioned. Exhaust gas build up in the passenger compartment under certain conditions. On MAX setting 80% of passenger compartment air is recirculated and 20% is pulled in from outside. On all other climate control settings 100% of the air is pulled in from the outside. If your rear seat passengers are uncomfortable you can safely keep the system on MAX. It won't hurt anything and you'll be safe too. HTH. -Jim

Your Answer

Ford F-450 Super Duty Experts

  • #1
    F_O_R
    Reputation
    60
  • #1
    gorsmar
    Reputation
    60
  • #3
    mlopez38
    Reputation
    40
View All

Related Models For Sale

Used Ford F-350 Super Duty
338 Great Deals out of 23,461 listings starting at $1,895
Used Ford F-250 Super Duty
338 Great Deals out of 43,422 listings starting at $1,250
Used Ford F-150
2,126 Great Deals out of 181,857 listings starting at $1,000
Used Dodge Ram 3500
86 Great Deals out of 2,173 listings starting at $4,993
Used Chevrolet Silverado 3500HD
118 Great Deals out of 10,199 listings starting at $5,995
Used GMC Sierra 3500HD
60 Great Deals out of 4,247 listings starting at $9,950
Used Chevrolet Silverado 2500HD
321 Great Deals out of 29,044 listings starting at $2,650
Used Dodge Ram 2500
141 Great Deals out of 5,077 listings starting at $2,999
Used GMC Sierra 2500HD
110 Great Deals out of 13,204 listings starting at $4,450
Used Chevrolet Silverado 1500
2,084 Great Deals out of 181,396 listings starting at $1,898

Used Cars For Sale

2017 Ford F-450 Super Duty For Sale
1,310 listings starting at $33,570
2016 Ford F-450 Super Duty For Sale
3 Great Deals out of 252 listings starting at $39,950
2015 Ford F-450 Super Duty For Sale
54 listings starting at $26,990
2014 Ford F-450 Super Duty For Sale
3 Great Deals out of 47 listings starting at $23,995
2013 Ford F-450 Super Duty For Sale
6 Great Deals out of 41 listings starting at $21,900

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.