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High revs in park

Tiny
TRACEY MCMORRAN
  • MEMBER
  • 1992 MERCURY MARQUIS
  • 4.6L
  • V8
  • 2WD
  • AUTOMATIC
  • 95,000 MILES
Revs high when put in park.
Thursday, January 3rd, 2019 AT 9:02 AM

3 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good morning,

The fist thing I would do is check the idle air control valve. it has a habit of sticking and the idle runs high. try removing the wire connector and see if the idle drops down to normal.

https://www.2carpros.com/articles/engine-idles-too-high

REMOVAL

- Disconnect electrical connector from air bypass valve assembly.

- Remove the two bypass valve retaining bolts.

- Remove air bypass valve and gasket.

Roy
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Thursday, January 3rd, 2019 AT 9:23 AM
Tiny
TRACEY MCMORRAN
  • MEMBER
  • 4 POSTS
It only high idle in park in drive it is okay. Code check said EGR valve. Thanks
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Thursday, January 3rd, 2019 AT 11:30 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
What is the code number? I doubt it is the EGR valve at all but if you get me the code number, I can look at the flow chart for the code.

Roy
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Thursday, January 3rd, 2019 AT 11:34 AM

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