2001 Cadillac DeVille V8-4.6L VIN Y @ 85K miles. Replaced Ho2 sensors, cleaned MAF and replaced air filter. Sensors showed normal wear. Cleared codes and engine runs rough at idle but smooths out at higher RPM. Codes returned. Checked all vacuum lines and EGR all are fine. Do have loud air intake sound near intake manifold? But all looks well.
Ideas and recommendations?
Friday, February 23rd, 2007 AT 5:45 PM