How can I get to back three plugs to replace them?

1999 MERCURY COUGAR
135,000 MILES • 6 CYL • FWD • AUTOMATIC
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CHUCKT528
  • MEMBER
  • 1 POST
How can I get to back three plugs to replace them?
Thanks
Jun 22, 2008 at 11:19 AM
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SQM
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 6,383 POSTS
Hello,

In order to replace those spark plugs, you will have to remove the upper intake manifold.
This will allow access to them.

https://www.2carpros.com/articles/replace-intake-manifold-gasket

I have attached the removal process for the upper intake manifold below.
Please let me know if you have any questions.
Thank you.
Jan 29, 2022 at 7:51 PM