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Old 04-11-2009, 08:07 AM
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No gears engaging after rebuild

4l60e transmission rebuit on 1995 gms 1500 4X4. Pump is pressuring but I have no gears engaging at all. I think the wrong gaskets may have been used for the case and valve body spacer plate. The kit came with sets for 2000 and after and for older models. Anyone ever seen this problem and what is the best way to fix this. I know the gaskets need to be changed but can this be done without pulling out the whole tranny?

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Old 04-11-2009, 10:28 AM
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Did you screw in the converter to the flexplate?
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Old 04-11-2009, 10:59 AM
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How did you verify the pump is making the proper pressure?

The wrong valve body gaskets would not cause a "no engagement" ... they would cause some problems , but not a 'no work at all' situation.

Did you perform this parts replacement on the 4L60E trans? Do you have previous experience in this repair?
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Old 04-12-2009, 07:16 AM
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O.K the no gears was a stupid oversite by us. Shift linkage had got bumped into 4Neutral. Now I have a couple of new issues. Reverse is sluggish, it engages fine but seems to hesitate at first but then when speed is increased it works well. Also I cannot get it to shift into overdrive. I get to about 65mph and it is running at 3000 rpm. We did a rebuild and the low/reverse clutchs were burned and replaced. Could any of this be due to faulty electrical components?
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Old 04-12-2009, 06:27 PM
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First instinct says....fluid level. Check when hot and engine running, not cold. There is a lot of fluid needed to fill the lines and cooler back up.

Other than that....the convertor may not be locking up. Did you connect all the electrical inside the transmission prior to installing the valve body/filter/pan?
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Old 04-13-2009, 02:56 PM
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I checked fluid level when running and hot and it was fine. Is it possible that either 1-2 or 3-4 solenoid is failing. All electrical is hooked up but I am having these problems. Also is Reverse controlled by electrical or is it all mechanical. A local guy told me reverse has no electrical controls. I am really thinking it is something failing with the electric connections.
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