Search Results for ‘duramax 2500hd dpf’

I’m looking to purchase a 2015 duramax from a used car dealership. During the test drive. The def quality poor message was displayed. The dealer assured me he would have to fixed before I buy the truck. He sent it to a service shop and claims they changed the whole def tank. Filter. And fluid...

So this is driving me crazy; I had a shop here in California (yes, full smog check state) replace the 9th injector and a forced regen after a reacurring CEL for the P0420. Also had a oxygen sensor replaced just months before. So, no more light the the "permanent" code won't clear. No lights on...