2001 Chevrolet Blazer Q&A
2001 Chevrolet Blazer Question: Need help fixing a P0410 code.
My 2001 Blazer 4x4 has shown a P0410 code. I am wondering if someone would be so kind as to give me steps to follow to fix the issue. Do I begin with replacing the pump first or another component such as a valve or relay? I replaced MAF sensor and both O2 sensors a couple of months ago. Also changed the fuse for the pump just in case but no luck. Any help would be greatly appreciated! Thanks! - GreenGiraffe
If you had some scan data it would help. - ProfessorG
The system fails because the check valves at the exhaust manifolds leak and that allows condensation to collect in the pump and that damages it. Here is some information that will help you. - http://service.gm.com/gmtechlink/images/issues/nov02/TLNov02e.html#story5 - cardocIII
these can be tough. i rec you seek diag as not to waste time and money repl parts - globalhelper