1997 Ford Expedition P0402 code issue

1997 FORD EXPEDITION
260,000 MILES • 5.4L • V8 • RWD • AUTOMATIC
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ROYCAR71
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I clean the EGR valve for my Ford Expedition 3 times and I still get the code P0402 intermittently. What can I do to solve the problem? Thank you.
Jul 17, 2015 at 2:44 PM
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CJ MEDEVAC
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CLEANING THE CARBON OUT OF THE PASSAGE WAYS (THAT LEAD TO THE EGR)

REPLACING THE EGR (DEFECTIVE)

LACK OF VACUUM TO THE EGR (EVERYBODY STILL HOOKED UP/ NO LEAKS IN THE LINES?)

MANY TIMES IT'S A BAD DPFE SENSOR THAT CAUSES THE CODE TO APPEAR (REPLACE)

THE MEDIC

Jul 17, 2015 at 4:49 PM
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ROYCAR71
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Thank you.
Jul 18, 2015 at 9:34 PM
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CJ MEDEVAC
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GET 'ER DONE?

THE MEDIC
Jul 18, 2015 at 9:42 PM
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ROYCAR71
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  • 359 POSTS
I replace eye dove sensor. So far no more check engine light. That you.
Jul 30, 2015 at 2:04 PM
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CJ MEDEVAC
  • AUTOMOTIVE REPAIR CONTRIBUTOR
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SORRY IF I WAS NOT A LOT OF HELP

GLAD YOU GOT 'ER GOING!

COME BACK TO SEE US

THE MEDIC
Jul 30, 2015 at 7:42 PM