I have a 2007 chevy Z71 1500 with 5.3 V8. I was wondering if there was any way to bypass cylinder deactivation to leave engine in 8 cylinder mode. I recently replaced # 7 cylinder lifters due to lifters not getting oil in 4 cylinder mode. I can see this will be an ongoing problem and can not afford …

Cylinder deactivation

jmnewton April 24, 2010, 3:45pm 3

Where would I find a tuner calibration? Truck has 116000 miles so already out of warranty.