Quote:
Originally Posted by special-K
If the tailgate and hatch aren`t sealed (were they ever?) fumes will roll up from the draft area behind the vehicle.
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Yes, they were more or less sealed up.
GM had weather stripping sealing up the bottom of the tail-gate (carpet strip), there was rubber up the sides (typically missing) and then there is the hatch seal that 'must have' the metal strip attached to the top of the tail-gate in order to function correctly.
Even with all these components in place and in good shape, some exhaust fumes will still weep in but at a managable level.
Tip: Opening a window only makes it worse, keep em closed so the air (exhaust) can't circulate.
