Failure to rev in park

Tiny
ELADSILLE
  • MEMBER
  • 2003 LINCOLN LS
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 95,000 MILES
The car was taken in for a smog check (CA). The test could not be performed because the engine would not rev to and hold 2,500 rpm's. When driving, rpm's are not an issue. Appropriate rpm at speeds and shifts (both automatic and manual shifting). Will rev some in park when cold but not at all when warm. Idle is fine.
Saturday, May 9th, 2009 AT 1:58 PM

7 Replies

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Any warning lights on on the dash? Wrench light?
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Sunday, May 10th, 2009 AT 8:42 AM
Tiny
ELADSILLE
  • MEMBER
  • 2 POSTS
No. The engine line was on but sensor reset. No lights now.
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Sunday, May 10th, 2009 AT 12:06 PM
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Please explain, was it reset by a scantool? Or did the car's own computer turn it off? Did you get the code when it was lit? Try going to AutoZone they will read the codes for free, ask them to read the "freeze frame data" and post that if you can.
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Monday, May 11th, 2009 AT 4:00 PM
Tiny
REIEMR801
  • MEMBER
  • 2 POSTS
I to have a 2003 Lincoln V6 not revving in park. I recently replaced an EGR valve and cleared code P0401. Car has been driven one hundred and fifty miles. What can I do to get it to rev?
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Thursday, July 19th, 2018 AT 7:43 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,347 POSTS
On newer cars the computer will not allow the engine to rev in neutral or park. Can you take a video of what the engine is doing and upload it here to the site so I can be sure?

Cheers, Ken
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Thursday, July 19th, 2018 AT 11:11 AM
Tiny
REIEMR801
  • MEMBER
  • 2 POSTS
  • 2003 LINCOLN LS
  • 3.0L
  • VR6
  • 2WD
  • AUTOMATIC
  • 260,000 MILES
I recently replaced the EGR valve and cleared code P0401. Car has been driven one hundred and fifty miles. What can I do to get it to rev in park?
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Friday, July 20th, 2018 AT 11:18 AM (Merged)
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,347 POSTS
The engine will not rev in park or neutral. Can you upload a video so I can see what it is going? You can upload it from your phone to the site in your response.
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Friday, July 20th, 2018 AT 11:20 AM

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