ANSWERS: 2
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Could be many things. Here are a few posibilities: -Bad pistons rings. This causes oil to mix with your fuel which might cause the jerks you talk about when you accelerate. -Contaminated fuel system. Change them fuel filters. -The oil. Like you said, it smells burnt, so it's obviously bad. I recommend the first thing you do is change your oil. Good luck.
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could be that you need to to change your plugs and wires. a bad plug or wire can cause misfires, which will cause the hesitation and jerking
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