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2000 Mercury Sable Idles rough

Tiny
KCHORB
  • MEMBER
  • 2000 MERCURY SABLE
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 82,000 MILES
Idles TERRIBLY. Auto Zone trouble codes P1132, P1152, P0174, P0171, P0401. I have replaced the EGR valve, with no change. What would be the next logical step?
Also analyzed by newest portable diagnostic computer from Mac Tools, the Taskmaster. It did a full diagnostic, even checking the power steering pressure, and at one point did something in the diagnostic that made the engine run noticeably better - almost normal. But when it was finished, it basically came back with the same information that was displayed be the care computer codes listed above.
Can you help?
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Friday, August 1st, 2008 AT 2:49 PM

1 Reply

Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
It sounds like you need to start with a compression test, here is a good link

https://www.2carpros.com/articles/how-to-test-engine-compression

thanks for using 2Carpros.com
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Monday, August 4th, 2008 AT 4:31 PM

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