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Vehicle occasionally hesitates, stumbles when turning right at slow speed

Tiny
JOHNNY_APPLESEED
  • MEMBER
  • 2000 FORD E-SERIES VAN
  • 5.4L
  • V8
  • RWD
  • AUTOMATIC
  • 160,000 MILES
Hello. Happens only on right turns. Has not completely stalled yet, but would be very dangerous if it does in traffic. Engine recovers in one second or less. Thanks.
Monday, May 2nd, 2016 AT 8:31 PM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
More then likely you have a vacuum leak that is causing an issue around corners that is getting close to stalling the engine. Let's use this guide to confirm this is not the issue.

https://youtu.be/4ktw1X4W_-k

If there is no vacuum leak then I suspect the power steering pump is binding in that direction which is adding stress to the engine and pulling the RPM down. If this is the case, it is unlikely the engine will stall unless there is another issue.

https://www.2carpros.com/articles/power-steering-problems

https://www.2carpros.com/articles/how-to-replace-a-power-steering-pump

Attached below is the process to replace the pump. Please review this material and we can go from there. Thanks
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Sunday, January 3rd, 2021 AT 3:15 PM

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