Build a bombproof 4l80e manual valvebody transmission. Apr 11, 2018 atsg tech manual 4l80e 4l85e 1991on gmc chevy rebuild. When hooked up to a civi computer the transmission will manually shift through all gears. Due to the variables in modifications done to transmissions and vehicles. Full manual shifts the transmission will be in the gear you select and changes to any gear you choose when you move the selector, no computer or wiring needed, red eagle clutches, carbon fiber ba nd, redeagle powerpacks for the forward. Automatic transmission rebuild kits 4l80e transmission. Atsg 4l80e thm transmission repair manual automotive july 29, 2015 4. See the shiftware section for installation instructions. Despite its name, the 4l80e is not an upgrade to its gm counterparts. September 21, 2017 transmission main plug early gm 4l80e transmissions had two 2 types of main body connectors. The transmission connector is located on the passenger side of the 4l60e transmission housing and on the driver side of the 4l80e transmission housing.
Automatic transmission rebuild kits 4l80e transmission type. It also uses a four element lockup torque converter, four planetary gear sets as well as five multiple disc and one mechanical. This page provides information on how the 4l80e automatic transmission from general motors operates with the megashift controller, as well as the tunerstudioms settings needed to configure the controller. It features clutch to clutch shifting which provides eight forward and one reverse gear. From 4l80e, the 4 indicates that the transmission has 4 gears. This will convert your stock valve body to a full manual shift, normal pattern. At jakes performance the 4l80e is our most popular transmission.
The pink wire provides power to the internal solenoids. Having problems with your 4l80e gm automatic transmission that is used in heavy duty chevrolet and gmc pickups, vans and motor homes. Nothing in this manual may be copied or reproduced by any means without the written permission of the author. Locate the 3wire harness on the driver side of the transmission case towards the rear of the transmission. Mind you, this transmission can also be converted to be a full manual gearbox as well. Or on the driver side of a 4l80e or tci 6x sixspeed transmission. Information about transmission rebuild gm 5l40e 5l50e. Hydramatic 4l80e transmission repair manual pdf free online. Gen3 powertrain controller transmission control users manual. Proper manual as used by vehicle technicians 4l80 4l80e transmission gearbox rebuild procedure manual bookmarked so you quickly get to the section you need. Many of the other specifications can be gathered by deciphering the name. Need illustrated parts drawing to assist you in identification of the parts that you might need. Manual 2nd band now 114 inches wide instead of the previous 1 inch wide, and manufactured with a revised band apply pin anchor, as illustrated in figure 2. So this article provides a triedandtrue procedure for converting any 4l80e transmission to full manual control, eliminating the need for a pcm.
Gm thm 4l80e atra manual repair rebuild book transmission guide 4l80e. Applications that use this transmission include the 8. Our atsg 4l80e technical manual covers transmission assembly. In the sport manual mode, the transmission is controlled by an electronic system that monitors the engine speed. Pdf online gm thm 4l80e atra manual repair rebuild book. The cool thing about the 4l60e and 4l80e electronic transmissions is that the shift solenoids are not pulse width modulated. The transmission is also slightly larger than a th400 as the overall length is 32 inches. Hummer h1, escalade, esv, ext, avalanche, express, savana, silverado, sierra. Multiple warehouse locations in las vegas and the east coast gets you transmission parts fast.
Using the software, load the calibration that matches your transmissions configuration. Us shift transmission control system instruction and operation manual. This manual can be used in collusion with any type of scanner utilized in retrieving these codes from the computer. There are some recommendations how to repair the automatic transmission 4l80e. The transmission is also slightly larger than a th400 as the overall length is. Pdf online gm thm 4l80e atra manual repair rebuild. It has a sport mode and the ability to change gears manually. Full manual, performance 4l80e transmission, level 4 the baddest of the bad, this is a nonelectronic 4l80e transmission. You shift to drive and then shift up and down with push buttons. Also is used in many hot rods because of the gear ratio and strength. Build a bombproof 4l80e manual valvebody transmission four. Atsg thm 4l80e transmission technical manual is necessary to diagnose, overhaul andor repair the 4l80e transmission. One of the biggest clues to identifying the 4l80e are the electronics that clips onto the drivers side of the transmission.
While on the road, i can shift from d into 2 and it will downshift only when going above 30 mph. Bigstuff3s gen3 ecu is the only aftermarket engine management system to integrate transmission control into a single ecu. Everything you need to know about rebuilding a 4l80e transmission. Hydramatic 8l90 manual the 8l90 transmission is a fully automatic eight speed rear wheel drive transmission that is available in both two and four wheel drive configurations.
See all formats and editions hide other formats and editions. If you have suggestions on tech info or trans comparisons that youd like to see, contact us and let us know. Ultramodern transmission is characterized by high reliability and functionality. Atsg ford transmission repair manual solenoid pack torque converter. The 4l80e transmission is a four speed automatic with torque converter clutch. Manual 2nd band apply pin the band apply pin has a revised overall length, 2. Oct 27, 2015 4l80e full manual with no computer duration. Transmission shift strategy is selected in such a way as to ensure the smoothest changing gear without the possibility of damage to the engine. Gm recommends upgrading to the newer connector and wiring harness. Complete full manual valve body gen iv and gen v ls, lt1 and lt4 chevrolet engine 6l80e6l90e 6 speed conversion kit. The atsg gm 4l60e65e70e 4l80e85e diagnostic code book is designed to provide. Installation notes for gm 4l80e 4l60e series pdf last generated. If any wires are damaged, adjust splices accordingly.
Shifts into second, then doesnt shift up any further. Fluid capacity and type, valve body and solenoids charts. Installation instructions for gm 4l80e external harness rostra. Installation instructions perfect torc gm 4l6065e and 4l80. No electronics needed, but you can keep the lock up.
Bigstuff3 is currently offering transmission control for gms 4l60e80e transmissions. Gm 4l80e4l60e reference material, manuals, faqsparts list. Microsquirt transmission control drop on harness for gm 4l60e and 4l80e thank you for buying our drop on harness. Since the circumstances of its use are beyond atras control, atra assumes no liability for the use of such information or any. Pre1993 4l80es will need an updated internal wiring harness. How to 4l80e transgo hd2 shift kit install intermediate ring direct drum springs a21bravo duration. The gm 4l60e 65e70e4l80e85e diagnostic code book is designed to provide the technician with a step by step diagnostic approach to each and every transmission code available from 1991 to the 2007 model year. This is a computer controlled transmission first introduced in g.
Installation and operation manual for 4l80e and 4l85e. Installation and operation manual for 4l60e, 4l65e, 4l70e, 4l80e, and 4l85e transmissions. Aug 18, 2017 the only logical transmission for our 4x4 was the 4l80e fourspeed automatic transmission commonly found in 34 and 1ton gm trucks and suvs. The hydramatic 4l80e technicians guide is intended for automotive technicians that are familiar with the operation of an automatic transaxle or transmission. The 4l80e transmission is the advanced progeny of the legendary turbohydramatic th400 automatic transmission, and is based heavily on the 400 in both. The vehicle speed sensor is located in the tail shaft housing on the passenger side. Atsg tech manual 4l80e 4l85e 1991on gmc chevy rebuild. Stuck pressure control solenoid valve located in solenoid. For more details about using microsquirt as a transmission controller, please see the main microsquirt transmission control page here. The novak guide to the gm 4l80e automatic transmission.
The 4l80e uses shift solenoids a and b to control upshifts and downshifts in all forward ranges. The first true gm electronic transmission was the 4l80e, introduced in 1991. The baddest of the bad, this is a nonelectronic 4l80e transmission. Allows a competant mechanic with no transmission experience to rebuild this specific automatic transmission. Pre1993 4l80e transmissions use a different internal wiring harness and passthrough connector. Everything you need to know about rebuilding a 4l80e. This manual is not intended to be a standard work of the howto reassemble the general motors 4l30e transmission, nor is it written with the professional mechanic in the back of my mind. Because of this, we do not provide a wiring harness for it. Next plug in the transmission connector and the vehicle speed connector into their appropriate locations. This early harness has a problem with leaking fluid at the passthrough connector. This early harness has a problem with leaking fluid at the. This manual has been developed by the automatic transmission rebuilders association atra technical department to be used by qualified transmission technicians in conjunction with atras technical seminars. The only logical transmission for our 4x4 was the 4l80e fourspeed automatic transmission commonly found in 34 and 1ton gm trucks and suvs. Page 3 tcu and a fuel injection system, for example if needed.
The 4l80e has proven reliable like its predecessor. All you have to do is ground the proper solenoids in the right order and you have a full manual box. Hydramatic 4l80e transmission repair manual pdf online. This harness makes controlling a gm four speed automatic transmission an easy bolt on. Gm 4l80e technical information gear ratios and solenoid states. Pre1993 4l80e transmissions use a different internal wiring harness and pass. Page 2 this connects to the round connector on the passenger side of a 4l60e transmission. Cut wire approximately 5 inches from back of the transmission connector. Transmission repair manuals gm 5l40e 5l50e rebuild.
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