My 94 Yukon has that older vehicle exhaust smell. What should I be looking to change or adjust?

What exactly does that mean?
Is your check engine light coming on?
Is it smoking at all?
If so, what color?




78 Corvette Pace Car For Sale-18k mi orig-Florida

No smoke or check engine light. but as far as tuning, the only thing i have not done is plugs and wires. Or for that matter check my engine timing. But to best describe it smells "Not Clean" like its not burning up everything it should be efficiantly. Does that help? Some smog device? If so which one's or how can I determine? Thanks


(This post was edited by LBC'N YA on Oct 22, 2009, 11:10 PM)

No, I'm afraid "not clean" is not a diagnostic term and doesn't identify anything.




78 Corvette Pace Car For Sale-18k mi orig-Florida

Try to describe what it smells like. Does it smell like oil, gas, rotten eggs, ect?
Loren
SW WA