Rich427

Yes surging at part throttle is a good way to describe it. I’ve been noticing it for the past couple thousand miles I’d say. I actually filled up from close to empty today with E85 for the first time (not a lot of places near me have it). Could be my imagination but I didn’t notice the surging and it seemed to be running great on it. I will search for the surging thread Thanks

Been noticing my truck is running a little funny. It’s slight and it’s Hard to explain. Almost feels like a misfire but not at idle only in like mid range rpm. Not throwing any codes. It just seems like it is not accelerating smoothly like it skips? I tried cleaning the MAF sensor, didn’t seem to help. Any ideas? Thanks

The horn itself could be bad. Or it could be a bad/dirty contact. Mine stopped working completely on my 2016 2500 and I unplugged the plug and plugged it back In and it has worked fine for about 6 months now.

Yes I’m going to stick with the pf48. I called some local Chevrolet dealers and the service dept told me they list the pf63 for that truck but I spoke with ACDelco on the phone and they told me it’s not the same filter and now after reading the specs on the bypass it’s pretty cut and dry. Guess there’s a reason they are still listing the pf48 for this engine. Thanks

I don’t get why GM supposedly stated that the pf63 would replace pf48 in any application

Then is pf63 still ok to use?

Trying to figure out why in my owners manual they list the pf63 for the 5.3 and 6.2. But still calls for pf48 on 6.0... seems odd if only difference is length

Hi everyone just traded my 17 z71 1500 for a 16 2500HD 6.0. I have a case of pf63 filters but the truck calls for a pf48. I know it’s the same filter just shorter. Does anyone know if the pf63 is too long? Thanks