GM Drivetrain & Suspension Chassis | Transmission| Driveshaft | Gears/Rear End/Differential | Traction Aids

4L60 Nightmare

Old Apr 26, 2009 | 11:06 PM
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From: Brownfield
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Well ive had hell since day one with my transmission ever since it overheated. It is throwing two codes right now. P0748 & P0706. I can clear the codes on my truck and as soon as i start the truck back up the 748 pops back up. I just hooked my tow/haul button back up b/c the guy i had rebuild it cut the wire. Well how hard would it be to check and see if he left the pressure sensor unhooked inside of the transmission? and can i do it with out dropping the transmission?
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Old Apr 27, 2009 | 12:34 AM
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Those two codes are not related codes and are both circuit electrical codes , I would suggest checking the wiring harness that its plugged in good and look that there are no wires exposed or pinched in the trans harness.
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Old Apr 27, 2009 | 12:37 AM
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How did I know Frank would post soon!!LOL
Good advise Frank
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Old Apr 27, 2009 | 12:42 AM
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Its what I do
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Old Apr 27, 2009 | 12:45 AM
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Thats a good thing
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Old Apr 27, 2009 | 12:49 AM
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Yep and check out the new addition to my signature
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Old Apr 27, 2009 | 05:44 AM
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From: Brownfield
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yes all the wires are plugged in and none seem pinched at all
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Old Apr 27, 2009 | 03:30 PM
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You should also check that the internal harness didnt get pinched between the case and the pan a common enough builder error.
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Old Apr 27, 2009 | 10:11 PM
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how do i check the internal wires?
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Old Apr 28, 2009 | 08:53 AM
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Pull the pan and inspect over near the plug that the wires were not pinched between the pan and case
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