Hi Team,
I just bought a 23' 3.0 Duramax Silverado LT Z71 this past October. I have had frequent issues and had the truck in the shop going on 3x inside of 1500 miles for "Service Emissions System". I ran the trouble code and it came back with P2B97: Exhaust pressure control valve A position exceeded learning limit. This light and message goes on and turns itself off intermittently, but warns me that my max speed will be limited. On the second time time in the shop, they replaced the part FP: 400009243- SPAC C04108161, an part described as Actuator 3.67.
The trouble code/check engine light popped up in the following sequence.
11/2 On- within the first tank of gas from the dealer.
11/6 turned off, took to dealer and explained the code found. Dealer kept a few days, but told me I could pick up and drive because they didn't have the part.
11/11 light on again
11/16 took to dealer for repair, light on at time of drop off.
11/17 got the truck back
11/18, light goes on again, same message
11/20, light turns itself off
11/30, light goes on again... time to take back to the dealership...
My concern here is I am in CA and want to own this truck for a long time, but this is the type of issue that would fail a smog test when I have to renew registration down the line and I will then be stuck with the repairs.
I don't want a lemon, but this is getting ridiculous and I have some remorse over buying the truck at this point.
Any feedback is appreciated.