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Engine misfires after reaching operating temperature?

Tiny
CHRISBASSIN
  • MEMBER
  • 2013 FORD EXPLORER
  • 3.6L
  • V6
  • 2WD
  • AUTOMATIC
  • 165,000 MILES
Car runs great until it gets up to normal operating temperature, then it starts to mis until it gets into overdrive. I have replaced all plugs (twice) fuel injectors, MAF, o2 sensor and checked all the coil packs. I don't know what else to do or try. Any help would be greatly appreciated.
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Saturday, February 18th, 2023 AT 3:09 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,375 POSTS
Hi,

Has the check engine light turned on when this happens? By chance, does it flash?

The first thing that pops into my mind is the crankshaft position sensor. When they begin to fail, oftentimes heat affects them. Once they cool, they begin working properly again.

Do me a favor. Take a look through this link and let me know if you feel anything mirrors what you experience:

https://www.2carpros.com/articles/symptoms-of-a-bad-crankshaft-sensor

Let me know.

Joe
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Saturday, February 18th, 2023 AT 9:59 PM

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