2012 Suburban Maint.

orange150

orange150

Well-Known Member
Joined
Mar 20, 2005
Location
Fairfax City, VA
OnStar just emailed me saying that my wife's 2012 5.3L (DOD engine) 4wd Suburban is about due for new plugs and a transmission filter change.
I've read to stick with the stock AC Delco plugs gapped to .040.
Anything else I should concern myself with while I'm there? Car's been running great!
 
orange150 said:
OnStar just emailed me saying that my wife's 2012 5.3L (DOD engine) 4wd Suburban is about due for new plugs and a transmission filter change.
I've read to stick with the stock AC Delco plugs gapped to .040.
Anything else I should concern myself with while I'm there? Car's been running great!
Click to expand...

Is this the first trans fluid change? If not a GM transmission tech told me to not bother replacing a filter if there is nothing wrong with the trans. Just change the fluid and go. That’s all I got :)


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