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Many of the GMC Yukon came equipped with the 4L60E automatic transmission. Unfortunately, this transmission has a number of problems, as it ages. However, with some TLC, this transmission can be restored to its former glory.
Check out this super short video, to learn more.
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Affected Vehicles:
1). 1993 GMC Yukon automatic transmission problems.
2). 1994 GMC Yukon automatic transmission problems.
3). 1995 GMC Yukon automatic transmission problems.
4). 1996 GMC Yukon automatic transmission problems.
6). 1997 GMC Yukon automatic transmission problems.
7). 1998 GMC Yukon automatic transmission problems.
8). 1999 GMC Yukon automatic transmission problems.
9). 2000 GMC Yukon automatic transmission problems.
10). 2001 GMC Yukon automatic transmission problems.
11). 2002 GMC Yukon automatic transmission problems.
12). 2003 GMC Yukon automatic transmission problems.
13). 2004 GMC Yukon automatic transmission problems.
14). 2005 GMC Yukon automatic transmission problems.
15). 2006 GMC Yukon automatic transmission problems.
16). 2007 GMC Yukon automatic transmission problems.
17). 2008 GMC Yukon automatic transmission problems.
18). 2009 GMC Yukon automatic transmission problems.
Note: 07-09 only applies to 2WD Yukons with the Vortec 4.8L V8.
Common problems:
1). GMC Yukon no 3rd or 4th gear.
1). GMC Yukon no 4th gear.
2). GMC Yukon no 2nd or 4th gear.
3). GMC Yukon no 2nd gear or Reverse.
4). GMC Yukon no 1st gear.
5). GMC Yukon no 2nd gear gear.
6). GMC Yukon no 3rd gear.
7). GMC Yukon no 3rd & 4th gear.
8). GMC Yukon slow acceleration.
9). GMC Yukon slams into gear.
10). GMC Yukon slams into 2nd gear.
11). GMC Yukon no forward movement.
12). GMC Yukon no reverse.
13). GMC Yukon no forward or reverse.
14). GMC Yukon only moves in Manual 1.
15). GMC Yukon only shifts to 2nd gear when hot.
16). GMC Yukon no 3rd & 4th gear when hot.
17). GMC Yukon transmission failure after rebuild.
18). GMC Yukon won't go into 3rd gear.
19). GMC Yukon won't shift into 3rd gear.
**More 4L60E Videos**
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AFL Valve (Part 1): • 4L60E: AFL Valve (Part...
1-2 + 2-3 Shift Solenoid (Part 1): • 4L60E Shift Solenoid -...
Planetary Gearset: • Planetary Gearset - Ho...
Power Flow (OD Gears): • 4L60E Power Flow (1st,...
Power Flow: (Manual Gears): • 4L60E Power Flow - Man...
Teardown: • 4L60E Rebuild: Teardow...
Teardown Time-Lapse: • 4L60E Teardown (TimeLa...
Output Shaft Swap (2WD to 4WD Conversion): • 4L60E Output Shaft Swa...