Had almost the same problem before it was the battery,put a new battery it started running fine.Have you ever heard this
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1996 Lincoln Mark VIII Question: skipping,give it gas it spits...now its started popping,when you give it gas
Answer #1patrick mannion from Greg Solow's Engine Room, January 09, 2012, 22:08Master
The computer controlling ignition and fuel in your car is sensitive to battery voltage it must be above 10 volts or so to operate correctly. Popping sounds sounds like a lean running condition maybe a vacuum leak, low fuel pressure, ignition coil breaking down. Foolish to jump to conclusions without being able to do proper diagnostic tests.