Common problems with uncommon solutions: 6L45 no-move or slipping forward
A 2010 3.0L Cadillac AWD CTS using a 6L45 transmission comes into the shop with a no-forward complaint. This particular vehicle is known for having the output shaft suffer from fretting, in which the output shaft to transfer case input shaft spline will strip and cause a no-move (figures 1 and 2). Sometimes, due to
2010 Escalade Noise: What’s the rattle under the hood?
A 2010 Cadillac Escalade equipped with a 6.2L engine and 6L80 transmission arrived with a somewhat erratic rattle noise from under the hood. At first glance (or sound, actually), there was not a particular condition that would trigger the noise. And noises being what they are, this made for a tough diagnosis.
The New Cadillac 6-Speed
In the never-ending competition between automakers for increased sales, there is an endless supply of new models equipped with newly designed components. Cadillac has produced the new ATS model, which is described as a “luxury compact sports sedan.” The ATS early on became the darling of the motor press and received “2013 Car of the Year” and other awards.
Identifying the 5L40-E and 5L50-E Transmissions and Valve Bodies
The 5L40-E and 5L50-E transmissions and valve bodies look the same at a glance. On the Cadillac, Pontiac Solstice and Saturn Sky, you can look on the service-parts identification label to identify the transmission by the RPO (Regular Production Options) number.
GM’s 2ML70 Hybrid Two-Mode Transmission
GM’s 2ML70 hybrid transmission (Figure 1) is a four-speed unit with fourth gear being overdrive. Applications include the 2008 Chevrolet Tahoe and GMC Yukon and the 6.0-liter 2009 Cadillac Escalade. It also was used for a short time in the 2009 5.7-liter Chrysler Aspen and Dodge Durango. BMW uses the two-mode 2ML70 in its ActiveHybrid X6, and Mercedes-Benz also uses it.
