Towing Troubles

courtesy of Bob, The Auto Answer Man

I recently bought a '97 Jeep Cherokee Sport and also a 85 Citation Camper (approx. 5,000 lbs). I had a tow brake put in and also an oil change before I started off on my first camping experience. About half way into my trip I was getting a thick black exhaust from my tail pipe when I went up hill. Needless to say I turned around and headed home. I'm at a loss as to why I had this problem. I am a novice and could use some expert help. Can you give me some insight into towing and a possible reason for the black exhaust?

Going up a hill pulling the camper put the car under a high load situation. The engine responded by giving more fuel. Your car may need to have a tune up and the MAP sensor replaced. On your way back home while you were driving on flat level ground was the car still pouring out black smoke? If not, then I think you've found the problem.
Good Luck!
Drive Safely!
Bob, The Auto Answer Man

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