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2000 Mercury Marquis Runs and Idles really rough

Tiny
STSAVIOS
  • MEMBER
  • 2000 MERCURY MARQUIS
  • V8
  • 2WD
  • AUTOMATIC
  • 147,000 MILES
The car runs really, really rough, and when it idles, sounds like its running on like 3 cylinders. It also makes a "clunking" sound. Then I took it to a shop, where they said it was misfiring on 4 cylinders, and they took to do some further testing. They then told me cylinder #1 read 0 on a compression test, and cylinder #2 was reading 50. They said I need a new engine, but that doesn't make complete sense to me. And I'm not sure what my next step should be. Does anyone have any advice?
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Thursday, May 27th, 2010 AT 2:31 PM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
Did the problem start all at once? Also, if I provide directions, can you check it to make sure they are accurate?
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Wednesday, June 9th, 2010 AT 9:30 PM
Tiny
STSAVIOS
  • MEMBER
  • 2 POSTS
Yes, the problem did happen all of the sudden, with no prior warning. However, I am away from my car right now, and will be away from it for about 2 more months
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Friday, June 11th, 2010 AT 7:16 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
When you return, let me know and I'll walk you through some checks.

Take care,

Joe
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Saturday, June 12th, 2010 AT 12:01 AM

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