1996 Chevy Tahoe 4wd

1996 CHEVROLET TAHOE
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SCSORRELLS
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1996 Chevy Tahoe

My tahoe will only shift only into 4 low when it is in nuetral. It will not shift into 4hi at all.
I have replace the actuator, tccm, indicator switch and the t-case switch. nothing has changed. I grounded out pin 13 on the dlc and the indicator swith flashes twice pause flashes twice. Please help
Nov 7, 2009 at 5:47 PM
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PEAR69
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There is no problem. You must be in neutral first before you shift into 4 low. You should also be completely stopped when shifting into 4 low. 4 low directly hooks up the transmission and the engine, with no or very little gear ratio difference. You should aslo never drive over 15 MPH while in 4 low...
Nov 7, 2009 at 8:20 PM