Looks like this is relate to First Brands going out of business. PF63 filters were made by them and now are NLA. And AC Delco is not taking dealer orders for them anymore. So now there is PF63A and PF63B for various applications.
Got an oil change at my dealer today.
They used
GM Part # 19363567
AC Part # PF63A which I questioned. In the parts catalog it clearly says it fits. Smaller size, metal core. Parts guy said they use them when PF63 is on back order or out of stock. Having done some reading looks like a...
There is a software update for EPS and Suspension control modules. At least on my 2022. It fixes random EPS non linear assist issue that Car and Driver long term test called out (blaming it on snow tires). There is also a firmware update on Onstar module which should fix delay on Real time...
when they replaced the clutch - did they just take the trans out or did they drop the whole engine/trans assembly and did the clutch on the stand? I believe proper procedure is to drop the the engine/trans as a unit and then separate it. Its difficult to align the trans back correctly...
Clutch shudder is not normal. It's in the same category or Tremec being notchy in 2nd. It just not. There are plenty of cars which are behaving normally.
However, the longer you wait (the older your car gets) and the higher the miles are - the cost increases. First threshold is 12k miles, Also, at some point 7 years stops being available, etc..
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