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Starts and idles fine however stalls when driving?

Tiny
B-RAD2
  • MEMBER
  • 2006 FORD FIVE HUNDRED
  • 3.0L
  • V6
  • 2WD
  • AUTOMATIC
  • 178,000 MILES
I replaced the valve cover gaskets and ignition coil o-ring. And the cover starts and idles fine however stalls when driving, I didn’t annotate but I think I lost oil pressure while driving. However I suspect a possible vacuum leak, I ensure my EGR was reconnected, all electrical connections, fuel lines, throttle bottle. Not sure where else to inspect.
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Sunday, October 13th, 2024 AT 8:27 PM

6 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,616 POSTS
I have seen the MAF, and crankshaft sensor fail intermittently and cause this issue. But we should run the codes to see if any are stored.

This guide can help:

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Here are the locations of these sensors so you can check them out. Check out the images (below). Please let us know what happens.
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Monday, October 14th, 2024 AT 10:42 AM
Tiny
B-RAD2
  • MEMBER
  • 11 POSTS
No codes are populating but I ensured the MAF is operating properly.
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Tuesday, October 15th, 2024 AT 3:27 PM
Tiny
B-RAD2
  • MEMBER
  • 11 POSTS
Also it stalls after idling.
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Tuesday, October 15th, 2024 AT 3:28 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,616 POSTS
Can you unplug the EGR valve vacuum line to see if that makes a difference? Also, please go over this guide:

https://www.2carpros.com/articles/stall-at-idle

Please go over this guide and get back to us.
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+1
Wednesday, October 16th, 2024 AT 10:26 AM
Tiny
B-RAD2
  • MEMBER
  • 11 POSTS
I got the car running now, appreciate the help. I replaced the crankshaft position sensor and found my fuel rail pressure sensor was loose.
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Thursday, October 17th, 2024 AT 5:27 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,616 POSTS
Glad you could get it fixed, thanks for letting us know. Please use 2CarPros anytime we are here to help.
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Thursday, October 17th, 2024 AT 8:56 AM

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