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2006 Ford Explorer engine misfire

Tiny
KANDJFRISCH
  • MEMBER
  • 2006 FORD EXPLORER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 46,000 MILES
Check engine light came on, and had the code read. It was a number 5 misfire. It runs bad a an idile and when I put a load on it, it runs wrose and has a surdge. When driving, it makes a back pressure sound. I have replaced the spark plugs, wire, coil, fuel filter, and fuel injector. When pulling the spark plug wires, when running, a change in engine on all wires except 5 & 6. I am now lost and don't know what to do next. Can you help?
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Tuesday, December 16th, 2008 AT 7:57 PM

3 Replies

Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
Have you done a compression test
I would
when you pull the wire of the spark do u have spark on it
checked the injector pulse
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Monday, December 21st, 2020 AT 11:17 AM
Tiny
KANDJFRISCH
  • MEMBER
  • 2 POSTS
I have done a compression test and all range between 185-195. When I did pull the wires, all wire do have a spark. How do you check the injector pulse?
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Monday, December 21st, 2020 AT 11:17 AM
Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
Locate the injector and pull it electric connector and check
use a small light bulb (194)
or a noid light
place in the plug and it should flash on off when engine running


https://www.2carpros.com/forum/automotive_pictures/99387_8_21_2007_13_3_11_1.jpg

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Monday, December 21st, 2020 AT 11:17 AM

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