• Tiny
  • t44
  • 1990 Chrysler Imperial

Engine Mechanical problem
1990 Chrysler Imperial 6 cyl Two Wheel Drive Automatic

car was fine then it started skipping and shaking, can smell gas, changed plugs and wires no help, starts right up but hole motor shakes

Friday, October 8th, 2010 AT 3:41 PM

1 Answer

  • Tiny
  • JDL
  • Expert
  • 16,290 posts

Do you have a digital multimeter? If so you can do an inductive test on the plug wires, engine running. You don't penetrate the plug wire insulation or take the plug wire loose. One lead touches the plug wire other lead goes to ground/ metal park of engine. You do have to watch out that you or the leads don't get caught in belts/s--pulleys or fan blade, anything. The reading is different from one vehicle to another, usually around 1/2 volt. If a couple of plug wires show zero and the others show close to the same, I'd change the cap and rotor where applicable.

Any applicable trouble codes? Also use a gage and check fuel pressure.

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Friday, October 8th, 2010 AT 3:51 PM

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