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Thread: 4l60e shift issues
08-12-2007, 07:22 PM #1
4l60e shift issues
My 93 4WD Suburban (4L60E) will not shift into low or OD except when cold and usually forcing it to shift by manually moving the shift lever. I checked the voltage on all the solenoids at the computer and they all appear OK except the 3 to 2 downshift. I also shorted the solenoid pins to ground and they all "click" except the 3 to 2 downshift. Would this keep the tranny from shifting into low or OD? I am trying to figure out if I have a tranny problem or a computer problem????
08-12-2007, 09:23 PM #2
- Join Date
- Jul 2007
check the transmission atf and filter
otherwise, i had a problem in cold whe i tried to put D from P. But in hot the gears fuction perfectly. I changed de transmission atf and filter.
08-13-2007, 06:18 PM #3
ATF and Filter
The transmission is recently rebuilt and only has about 6K miles on it. Fluid is bright pink not burnt at all.
04-26-2009, 10:41 PM #4
i had similar problem with mine would downshift and upshift when i was crusin around 45mph you might wanna change the shift solenids that cured my problems mine tested just a hair low when i check them out
04-27-2009, 09:50 AM #5
4L60E Shift Issues
Well I finally found what was causing the shifting problem. The connector on top of the tranny could be rotated about 1/4" in the tightening direction when I rotated the connector it would shift correctly when I turned it back the tranny would go back into the "limp" mode. The truck has been OK for about 12000 miles now.
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