sounds like a convenient way to get out from under a loan to me, especially given something like that happening is relatively unheard of unless it's a ford ppv
what do you have to back up your claim? if the exhaust system is ok then I am going have to call b.s. on this one. air circulation on these truck enters from the front right side and by default air is sent inside the vehicle to the floor by your feet and exits out the back above the tail lights thru vents. co is lighter than air if it was trapped anywhere it would be near the ceiling, the rear vents are high up, chances of co being trapped inside are nill even if it was entering somehow. have you checked your home or workplace instead? are you leaving it running in the garage? nothing else makes any sense.
what do you have to back up your claim? if the exhaust system is ok then I am going have to call b.s. on this one. air circulation on these truck enters from the front right side and by default air is sent inside the vehicle to the floor by your feet and exits out the back above the tail lights thru vents. co is lighter than air if it was trapped anywhere it would be near the ceiling, the rear vents are high up, chances of co being trapped inside are nill even if it was entering somehow. have you checked your home or workplace instead? are you leaving it running in the garage? nothing else makes any sense.