I have a 2001 5.3L Z71 sierra with 70,000 miles. I recently took it for a smog inspection and it failed throwing the code P0410. I checked the fuse, it's fine, at start up the air pump does engage then stops after about 15 seconds. Could it be the EGR valve? How can I go about trouble shooting the problem?
Saturday, November 17th, 2007 AT 6:58 PM