Engine Mechanical problem
1997 Chevy Lumina 6 cyl Front Wheel Drive Automatic 196500 miles
Occasionally, in the past, my "check engine light' would come come on, I would get it diagnosed at Autozone as a EGR valve problem. I would clean out the carbon deposits, put it back in place and the problem would be resolved. There was never a problem in engine performance.
This last time, when it was again diagnosed as the EGR valve, I routinely went to clean it, but it was filled with a muddy sludge that I never saw before. Again, there is no problem in engine performance. What is this stuff, and does it represent a bigger problem?
have the same problem?
Thursday, November 19th, 2009 AT 11:33 AM