why is my car all of a sudden hesitating?

  • Thread starter Thread starter stanhope_5
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stanhope_5

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97 pontiac sunfire 2.2L 134ci OHV pushrod motor. 190,000 without being able to tell.
When i go to barely accelerate, its ok, but the min i put anymore pressure, it bogs down, even sometimes hear a pop noise. PCV valve is fine, no check engine light. went from running great to this. i have recently put Lucas fuel treatment in.
 
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