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Figure 1. GM's 4L60-E automatic transmission, late model. Over the years, this transmission has seen numerous revisions, changes, and additions to internal components—such as valve bodies, solenoids, pump, and torque converter. In 1997, the “late” model of this transmission that included a removable bell housing was widely …GM Convertor Lock-Up and the TCC Solenoid. GM Hydramatic transmission. There is a solenoid in your GM converter that causes the the torque convertor clutch (TCC) to engage and disengage. When the TCC solenoid receives a signal from the engine control module (ECM), it opens a passage in the valve body and hydraulic fluid applies the TCC.10. 4L60E Transmission Shift Solenoid Problems. If your 4L60E transmission is experiencing any of the following issues, the most likely cause could be its solenoid. A faulty solenoid can cause problems such as erratic shifting, failure to downshift, or being stuck in neutral. Furthermore, a broken solenoid wire will cause severe …Oversized Lockup Relay Valve Kit 97741-20K. Fits A340E/F '00-later, Type 3 & 4 valve bodies. For A245E and A246E, fits '05-later with upper casting code 9132. Helps cure: TCC apply & release concerns. TCC codes. Inadequate lubrication.High line pressure. Overheating. Low cooler flow at idle. While Sonnax makes every effort to ensure the accuracy of technical articles at time of publication, we assume no liability for inaccuracies or for information which may become outdated or obsolete over time. Sonnax valve body diagram for 4R44E, 5R44E, 4R55E, 5R55E units.In this video, you will learn 4 symptoms of a bad or failing transmission shift solenoid. Watching this video will help you diagnose to see if it's time to r...This 4L65E transmission was developed with the LS V8 engines in mind. Though they are not compatible directly with the 4L60E due to they make use of various torque converter and input shaft. And the input shaft is about 300mm vs. 298mm on the 4L60E transmission. This means if you are using a 4L65E, ensure you take the 300mm …Service Engine light comes on, the only code is P0740, TCC enable solenoid circuit. What it seems like is that this code only appears when the ambient temperature is below freezing. For example I can drive the truck all day, but at night when the temp dips down, the light comes on. Maybe it's just coincidence.4.8L, 5.3L or 6.0L engine, 4L60E, or 4L80E/85E transmission and a chassis that utilizes switches, lighting and other circuits that are 12Volt and negative grounded. ... chain stores provide a basic wire diagram. Please do not attempt to modify this ... solenoid, tank purge solenoid, air pump, air pump solenoid, and exhaust gasUse a multimeter to try & figure out what the issue is. Start with the internal wiring of the transmission, check each wire for continuity with the multimeter, check the connections ensure they are not shorting to ground or to another wire. Rich. teddybeartruck Discussion starter · #3 · Mar 21, 2011.The P0741 is typically a "performance code," which means that if there is a (torque converter clutch) solenoid, the electrical element of the (TCC) circuit is functioning properly and that the TCC command has been sent but that the speed information from the crankshaft and the transmission output shaft indicate that the torque converter ...Save. 17K views 1 year ago PHOENIX. Learn how the 4L60E Shift Solenoid works (1-2 shift solenoid) (Shift Solenoid A) (2-3 shift solenoid) (shift solenoid B). When there are problems …The need for an overdrive and lock-up torque converter led to the production of the 700R4 transmission, later upgraded to the 4L60 and 4L60e. However, while the 700R4/4L60e performed excellently, they were not as strong as the TH400. ... The 4L80e features two shifts of solenoids formerly known as the Shift A and Shift B solenoids. However, to ...

Each shift valve when stroked in the correct direction completes the fluid path necessary to activate the clutch pack(s) and/or band to achieve the appropriate gear. In modern transmissions such as the successor to the 4L60 — the 4L60-E (Figure 7) — gear changes are achieved electronically, instead of hydraulically, by using solenoids.How To Replace A Shift Solenoid On A 4l60e. When returning your 4l60e change solenoids, it is multiple reasons to replace them with heightened-grade ACDelco ...Step by Step: 4L60E Overdrive Trans Swap. 01| The Level 4 Gearstar 4L60E four-speed isn't much larger than the three-speed TH350 that was original equipment in the '69 El Camino of Roadkill's Mike Finnegan - yet it's much stronger, allows precision adjustment of shift points and firmness, and adds a freeway-friendly 0.70:1 Overdrive.125. When you blow the trans fuse the trans will take off in 3rd gear.you need to drop the pan and ohm all the solenoids. I don't have all the specs in front of me but can get them for you tomorrow.most likely it will be a shift solenoid or the 3-2 control solenoid. Let me no if you need more info. Greg.Driving Symptoms. Your transmission relies upon the positions of multiple solenoids to control the gear selection. If one or more solenoids are bad, you may lose the use of one or more gears, and may even be stuck in one particular gear or unable to shift into any gear at all. Do not confuse a slipping transmission with a solenoid problem.

Parts for 4L60E: compare prices for Overhaul Kits, Friction Kits, Bushings, Bearing, Solenoid Kits, Valve body, Torque converters, Planetary Gear kits, Filters, Gaskets, Seals, Pressure Plates, Differentials, Sensors, Valves.Has holes in plate marked in diagram. '94 or '95 computer will not accept the 20-31 OHM 3-2 solenoid and will throw an SES light and throw the transmission into limp mode. Some less knowledgeable builders will swap the solenoid so the computer will see the correct resistance, but the valve itself then causes downshift issues.There is an early and a late model of the 4L60E transmission. The difference is the addition of the "Lockup Feel" solenoids (aka. TCC PWM solenoid). VSS (vehicle speed sensor) on 2WD vehicles is in transmission extension housing, on 4WD vehicles the VSS is in transfer-case. …

Reader Q&A - also see RECOMMENDED ARTICLES & FAQs. 4L60E transmission problems? We have replacement new, used, . Possible cause: The 3-2 control valve spring in late-model GM 4L60-E, 4L65-E and 4L70-E v.