Review on 🚀 High-Performance Mass Air Flow Sensor for Chevy Silverado, Suburban 1500, 2500, Tahoe, GMC Yukon XL 1500, Sierra, Cadillac Escalade, ESV, EXT 5.3L, 6.0L, 4.8 & More - Replaces OEM: 25168491, AF10043, 25318411 by Bob Jensen

Have been running this for 5 months and have not been able to figure out why a 2006 Yukon 5.3 engine is not idling properly, is choppy and always looking for idle speed. Eventually, in cold weather, it worked so poorly that I was able to determine that it was a MASS AIR FLOW SENSOR. I had a new Delphi mass air flow sensor, I installed it and all the idle and rough engine revs were gone and worked better than ever, the shift point was also changed on the fly. MUCH BETTER. BUY OEM don't risk it DELPHI AF10043