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1999 Hyundai Elantra This engine also misfires in idle

Tiny
2CP-ARCHIVES
  • MEMBER
  • 1999 HYUNDAI ELANTRA
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 110,000 MILES
1999 Hyundai Elantra mileage: 110,000. This car idles fairly well in neutral or park but very rough in reverse and drive. I just replaced the engine with a used engine and it is doing the same things the old engine was doing. I replaced the plugs, wires, rotor button, cap, fuel injectors, set timing, etc. This engine also misfires in idle. I NEED HELP!
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Tuesday, November 9th, 2010 AT 12:35 AM

1 Reply

Tiny
2CP-ARCHIVES
  • MEMBER
  • 4,540 POSTS
Check the motor mounts; a broken mount will allow the engine to shake excessively. Your car is equipped with a computer controlled engine management system. An independent auto service center can scan your computer for fault or error codes. The information should pinpoint the mal functioning components.
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Tuesday, November 9th, 2010 AT 12:37 AM

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