2002 Mercury Marquis EGR Valve

2002 MERCURY MARQUIS
35,000 MILES • V8 • 2WD • AUTOMATIC
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BARBRAMEY
  • MEMBER
  • 1 POST
My check engine light has been on for a few days and I had it checked on a computer. it showed that the EGR valve was bad. Could you tell me where this is located in the car. And also is it easy to replace or should I take it to a garage? Thanks!
Barb
May 26, 2008 at 10:42 PM
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MERLIN2021
  • ✓Experienced Mechanic
  • 17,250 POSTS
B4 you junk the EGR, what was the code? P0401? If so, it may not be bad, get back to me...
May 26, 2008 at 10:54 PM
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BMRFIXIT
  • ✓Experienced Mechanic
  • 19,053 POSTS
You can check and clean the EGR valve but what we find 90% it not the EGR valve
check and or replace (DPFE) differential pressure feedback EGR sensor
located on center rear of engine near right side of intake manifold
May 26, 2008 at 10:56 PM
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