2008 Check engine light

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dalimoman

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Sep 27, 2022
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Location
Napa, CA
Thanks in advance for any help. I have a 2008 Expedition with 154K on it. According to my receipts the plugs and coils were replaced at 125K at the Ford dealer. When driving uphill from Napa, CA to Reno the check engine light started flashing on hard acceleration after the transmission downshifted. This continued for about 30 seconds and the light went out. I seemed to notice a slight misfire but it wasn't dramatic. After that the car ran fine. When I got back to Napa I checked for codes and there weren't any. The car seems to be running normally now. Any ideas as to why the check engine light would flash briefly but not throw a code? Any help is appreciated.
Rick
 
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