TROUBLE CODES E34, E52 AND E71.

  • Tiny
  • dsavag69
  • 1991 Cadillac Deville
  • 15,600 miles

1991 Cadillac Deville with 4.9 L engine. 156,000 miles Has a miss in cylinders 1, 2, & 8. I replaced plugs and wires. Did a compression test and it has 165 psi on all cylinders. In park it sounds like it has a lot of power when I rev it up, but I can only runs good when in park but no power when in gear miss in cylinders 1, 2, 8 replaced MAP sensor.

Did compression test, replaced plugs & wires pulled trouble codes E34, E52, E71.

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Thursday, February 16th, 2012 AT 7:32 PM

2 Replies

  • Tiny
  • billymac
  • Expert
  • 2,240 posts

I would have the coils tested

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Thursday, February 16th, 2012 AT 7:37 PM
  • Tiny
  • cadieman
  • Member

You should have it scoped for checking the ingition system.

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Thursday, February 16th, 2012 AT 10:35 PM

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