1999 Ford Ranger EGR Valve

Tiny
FORDEX
  • MEMBER
  • 1999 FORD RANGER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 30,000 MILES
My son has a 1999 Ford Ranger, the check engine light came on and the codes read the EGR valve. We replaced the EGR valve and the light came back with the same code. Disconnected the battery to try to reset computer and again the check engine light came on and the same codes on the computer. The economy does not seem to be what it should. Any ides?
Wednesday, December 23rd, 2009 AT 8:44 PM

3 Replies

Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
Remove the intake and clean the carbon from the passages to the EGR. This is what causes the EGR valve to fail and the code to come on.
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Wednesday, December 23rd, 2009 AT 8:58 PM
Tiny
FORDEX
  • MEMBER
  • 1 POST
We did remove the EGR and ran the engine without the EGR in an attempt to blow out anything in the tubes. Will try taking if off and see if we can remove any carbon. What about the poor fuel mileage?
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Wednesday, December 23rd, 2009 AT 9:14 PM
Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
That is caused by the restricted airflow through the passages. You can't blow the carbon build up out. It must be scrubbed out.
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Wednesday, December 23rd, 2009 AT 9:15 PM

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