4l60e Rattling Noise. I hear the rattling begin as the RPMs increase just before t

I hear the rattling begin as the RPMs increase just before the shift is commanded and the rattle ends instantly when the shift completes. The noise only happens at idle speed, as soon as you touch the accelerator it goes Nov 1, 2011 · 4l60e making a squeeling noise???? Jump to Latest 8. When put in drive after 25 MPH it smooths out and runs flawlessly. For awhile now I've had a whining noise coming Oct 3, 2008 · 4L60E in the Envoy that recently started whining, perhaps more like a fuel pump if I were to describe it. At ACE, we don’t just replace what’s worn — we remanufacture every 4L60E with modern upgrades, dyno validation, and built-in fixes that help reduce comebacks and speed up installs. Apr 27, 2014 · I thought I might have a catalytic failure issue similar to that of the GP, but upon further investigation and smacking, I discovered that the rattle is coming from the rear O2 sensor on the driver's side. The pinion gear in the starter was definitely the problem. 0 4l80. I do tow with the truck. Pickup has about 130,000 miles on it. alawyxi
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