I have a 2006 jeep grand Cherokee lardeo it has black smoke when u start it up put in drive it does not wanna move it bogs down
Black smoke is unburnt hydrocarbons....gasoline. Your car is running way too rich, not enough air in the mix. I suggest an OBDII scan to eliminate a lot of guessing and buying parts you don't need, many parts houses will do it for you free. You can do that and come back here, you should have code(s) that start with P then 4 numbers, one of us will be happy to help from there ..meantime check you air filter to make sure it's not clogged
change oil and air filter
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