Why does my transmission downshift hard?
If the downshift solenoid has any issues, it may cause the vehicle to behave erratically when downshifting. A bad or failing solenoid may cause the vehicle to experience hard or erratic shifting when slowing down or coming to a stop.
Is Chevy 6 speed automatic transmission problems?
Newer Chevrolet cars, equipped with a 6-speed 6L80 transmission, can experience sporadic or constant transmission issues. This ranges from harsh or slow shifting, failure to engage any gears, or gear slipping. In some cases, it may even cause transmission overheating.
Why does my 4L60E shift hard?
The pin which the piston rides on is steel and commonly wears the pin bore into an egg shaped hole. The accumulator then leaks and causes a harsh 1-2. The purpose of the accumulator is to cushion the shift. If the accumulator is leaking there is no or reduced cushion effect giving you a harsh shift.
What kind of transmission does a Chevy Silverado have?
Figure 1. GM’s 4L60-E automatic transmission, late model. Over the years, this transmission has seen numerous revisions, changes, and additions to internal components—such as valve bodies, solenoids, pump, and torque converter. In 1997, the “late” model of this transmission that included a removable bell housing was widely introduced.
Why does my truck downshift when hard braking?
I dropped off the truck this morning and received a call a couple hours later that two separate techs, including the one I rode with last week, took it out and determined it was the transmission downshifting from 2nd to 1st present when hard braking, and the annoying answer that this was normal and working as designed.
What is NHTSA # 10032869 for Chevy Silverado?
DURING DISASSEMBLY OF THE TRANSMISSION TECHNICIANS MAY FIND THAT THE 2-4 BAND (ITEM 602 IN SI DOCUMENT 1553208) AND THE OVERRUN CLUT Want to learn how to fix NHTSA #10032869? Description: BUICK/CADILLAC/CHEVROLET/GMC/OLDSMOBILE AND HUMMER: INFORMATION ON PITMAN ARM SHAFT SEAL SERVICE KIT. DO NOT REPLACE ENTIRE STEERING GEAR FOR PITMAN SEAL LEAK.
When did Chevy Silverado get removable bell housing?
In 1997, the “late” model of this transmission that included a removable bell housing was widely introduced. Incorporating a “beefing up” modification in 2002, this transmission is in widespread use today.