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Thread: 4L80E trick question
08-13-2007, 05:55 PM #1
- Join Date
- Jul 2007
4L80E trick question
My 04 sub which is 2 whl and is 3/4 ton has a 4L80E tranny and I am wondering if I can turn the converter on and off. The reason is that in my old sub which was a 96 2 whl 3/4 ton with a 5.7 and the same tranny, I could come off of the converter by a slight touch of the brake pedal. This was so cool when towing or going up a hill on overdrive. I have tried the same trick with the 04 but to no avail. The only thing I can do is depress the throttle down about 1 inch or so to get down a gear then let the throttle up a little.The Muffinman
Job shop owner
08-16-2007, 09:29 AM #2
The best thing you could do if you do allot of towing is get a programmer and adjust the transmission settings. I know edge products sell these type of programmers. I sell some on my site.
Last edited by ljjcsautomotive; 08-16-2007 at 09:32 AM.
08-18-2007, 11:16 AM #3
there is a sticker on my door that says when towing or heavy loads do not use the overdrive selection just use drive......mikeMichael Collins
1993 4X4 Suburban
many other toys as well
08-21-2007, 09:45 PM #4
- Join Date
- Aug 2007
- No. central Arkansas
I have 2000 1500 with 5.3L and same transmission. Do you have the Tow/Haul switch on shift lever? If so, engage the tow/haul mode as it changes the shift pattern of the tranny and does it quite well.
If you don't have towl/haul, use 3rd gear only.
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