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I have a 2012 Buick Enclave with 94Kmiles. This car has always driven great. No complaints with this car. We haven't really had to do much to this car except typical maintenance over the years. About a month ago it started missing/shuttering around 20 mph and 60 mph while around 1600-1800 RPM. Over the last month this problem has gotten worse. In the beginning it only happened once or twice a day. Now it happens several times a day. Recently i noticed it wasn't based on MPH but instead RPMs. The problem only happens while around 1600-1800 RPMs. I can drive and manually shift all day long and have zero problems as long as i keep RPMs above 2000.
Ive taken it to Buick and they said there weren't any codes and they didn't experience what I've described. I have yet to see a CEL.
Ive:
Used techron fuel cleaner twice
While getting oil change I paid to have throttle body cleaned, exhaust cleaned and they put cleaner in tank
Replaced all spark plugs with .43 gap and all coil packs
Buick dealer downloaded new software
Removed battery cable for 30min
Any and all ideas are appreciated!!!
Ive taken it to Buick and they said there weren't any codes and they didn't experience what I've described. I have yet to see a CEL.
Ive:
Used techron fuel cleaner twice
While getting oil change I paid to have throttle body cleaned, exhaust cleaned and they put cleaner in tank
Replaced all spark plugs with .43 gap and all coil packs
Buick dealer downloaded new software
Removed battery cable for 30min
Any and all ideas are appreciated!!!