Funny Smell, and Smoke....
Since I took my truck out muddin last I have been getting this funny smell when the engine is put under any strain. I look under the hood and there's "smoke" coming from, what appears to be, the pipe going from the exhaust manifold to the throttle body right behind the flap. Now I'm not big on terminology so I'm not sure what this pipe is called. It's a very odd smell that it is producing around where it meets the exhaust pipes. It's a short pipe around a foot 1'6" long. I can only assume that it is some sort of vacuum. Maybe if someone knows what this pipe is called, what it does, and why it might be smoking then they could give me a little clue. I am not completely mechanically inept, I just did a clutch swap without a snag, I just can't seem to put together what this problem is the result of. Oh btw it's a '93 Ranger XLT 2WD 2.3L 4 banger.