1998 ford expedition emission problems?

  • Thread starter Thread starter suetrouble66
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suetrouble66

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have a 1998 ford expeditionn. engine light keeps coming on and car runs a little rough at times. put 2 egr valves on it since july 07. I was told it might be the egr feedback sensor. put that on last week. engine light still comes on. took of egr valve again and notice there was no gasket to it. So cleaned it out and put new gasket in and cleaned egr again. light still comes on and runs with a little roughness too it. everytime I have it check it says egr ( emissions) problem. could it be egr vacuum regulator at all. or what else could it be. any suggestions on what to do I would appreciate. Step by step instructions would be great. thanks
 
I'm guessing you are getting an "insufficient flow" code for the EGR. Remove the EGR valve and inspect the passages. You will probably find that they are clogged.
 
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