Exhaust leaking into cab

[Danny]

I have a 69 Dodge charger, it appears to be leaking carbon monoxide into the cab while driving.  Any ideas of what may be causing this!!!!  Is it through the vents.  Also how many cables should be on the vents - one on the left and one on the right?  I only have the one on the right???

[resq302]

If you have CO leaking into the cab, I would be more concerned about where it isn't sealing on the exhaust system than about the vent cables.

[Hard Charger]

many possibilities here
i had a problem with my trunk seal, this caused a exhaust leak.
a pin hole from an old repair on the inner wheel well is another problem i found.

i found loose manifolds bolts (original from the factory w/o gasket)
loose connection coming off the manifolds at drop pipe.

i never thought to look at these places (never looked anyway), but for years our cloths would smell after a ride.

[Danny]

Thank you for your thoughts.   I did notice that the inner wheel well is missing when the fender was replaced and the left side of the vent cable is non existent - could this be causing the leak.

[Mytur Binsdirti]

Take a nap and don't worry about it. 

[Danny]

With readings in the cab with the window closed at 10-15 ppm and with the window open the low warning alarm going off on the carbon monoxide detector, I think ill be going to sleep if I continue to breathe in these fumes while im driving.

[c00nhunterjoe]

Are you running tailpipes? If not that's most of the problem.
If you have tailpipes do they extend past the rear valence? If not fumes can go up through the trunk.
Check the trunk lid seal.
Seal the tru k floor itslef.

[NHCharger]

There is supposed to be a seal on the back edge of your hood to seal it against the cowl. This prevents engine fumes from being sucked into the cowl vents.

[Danny]

 What  do you mean by a seal on the back edge of the hood  Can you show me a diagram or a picture 

[NHCharger]

Only two pics I could find.

[ws23rt]

I would suggest that you take your Co detector with you wherever you go for a while to get a base line reading of your surroundings. 10 to 15 ppm is rather low. It is a setting that has been set by someone that is very much on the Conservative side to alert a homeowner to a possible problem in there home long before it becomes a problem. Most new cars are very tight and CO clean but the intake from the surrounding air pulls in whatever is out there.
It would be a good check to find out what your readings are with a new car in a downtown congested area.