4L60E Shift Solenoid 2-3 ❤️ A common problem for GM vehicles (2023)

The 4L60E gearbox is one of the best on the market and has been continually improved over the years due to its solenoid failure. This repair can cost up to $500 if you can upgrade it yourself. With a licensed mechanic, drivers should expect to pay up to $2,000 or more.

Car repairs are expensive.


Depending on the severity of the solenoid failure, it may be worth sending the car to the junkyard if it isn't worth the investment in additional repairs.

Transmissions are made up of three different systems that work together: the mechanical system, the hydraulic system, and the electrical system.

Together, they help determine power from the engine to the driveshaft, determine which part of the gears receives power, and control transmission shift points. In other words, this is a very critical aspect of car operation.

There are two basic types of transmissions: custom and reconditioned electronic transmissions with electronic controls. The 4L60E is a four-speed automatic transmission. There was an earlier and later version of this gearbox so it's important to research which one is in your vehicle.

4L60E Shift Solenoid 2-3 ❤️ A common problem for GM vehicles (2)

Despite its impressive overall reliability, the 4L60E won't outperform its solenoids.

Solenoids can wear out or break over time and need to be replaced. Depending on the severity, it can mean that the car is stuck at idle and becomes completely undriveable.

(Video) How to find broken wires

This blog describes what a shift solenoid is, what it does, and the typical symptoms you have when it's broken. Cost estimates for 2021 are provided for the repair of the solenoids; however, these costs will vary based on shop, location, and parts availability.

What is a change magnet?

Modern automatic transmissions use pressurized fluid to change gears; Every time a gear is changed, the car's computer activates achange magnetthat guides the fluid in such a way that the car engages the correct gear.

The engine control unit commands the shift solenoids in the 4L60E transmission to open and close. The E part of 4L60E stands for electronics; This gearbox has an electronic control.

If one of the magnets fails, all sorts of transmission problems can arise. When a minor failure occurs in the vehicle's drive system, often everything shuts down, leading to a frustrating situation of a stalled car, a tow truck, and (often expensive) repair bills.

What does a shift solenoid do?

The shift solenoid is an important component in ensuring that you have a safe and reliable vehicle. As you drive, the car's computer analyzes all kinds of data. Based on this information, the ECM shifts appropriately using one of several shift solenoids.

These solenoids have a spring loaded plunger that is wrapped in wire. When the wire from the engine control unit is electrically charged, the piston opens and allows transmission oil to flow to the correct areas. This all happens when the transmission shifts and you're driving down the highway.

The car's computer controls the shift solenoids in a variety of ways, including opening or closing the hydraulic circuit, or controlling the piston that turns the circuit on and off. Depending on vehicle design, a shift solenoid may be used to control a single gear or multiple gears.

How do I know if my shift solenoid is faulty?

If he4L60E Shift Solenoidbad, your vehicle may not downshift, shift late, shift erratically, or get stuck in neutral. On the 4L60E, the shift solenoids can cause a lot of problems.

The 4L60E transmission often cannot downshift if one or more of the shift solenoids are stuck because transmission fluid cannot be diverted to the transmission to change gears.

Sometimes there is a long delay in shifting and activating, often due to a faulty shift solenoid. It could also mean the transmission is skipping gears because it just can't find the right one.

In the worst case, if the shift solenoid has completely failed, the transmission may not work at all and get stuck in neutral no matter what gear you're in.

What are the symptoms of a faulty shift solenoid?

luckily a bad onechange magnetIt is usually not an emergency transmission repair and you can still drive the car for a while, although you will experience certain symptoms while driving. These symptoms include:

  • Delayed or erratic switching
  • downshift not possible
  • When braking, the vehicle accelerates
  • Transmission is stuck in neutral
  • check engine light comes on

If you notice your car taking longer to change gear, it could be a faulty solenoid. Dirty transmission fluid can cause the shift solenoid to stay open or closed, making it difficult for the transmission to shift.

Also, if the transmission oil is dirty and the solenoid is stuck open or closed, it may mean that you are unable to downshift or that the car accelerates under braking. If the transmission oil is contaminated, the car will not respond to signals from the engine control unit telling it to slow down.

Also, your vehicle may not be able to make the required changes and may behave as if it were idling.

Eventually, the check engine light may come on or the transmission may go into fail-safe mode, rendering the car virtually undriveable. They have limited power and only a few gears, so the handling of your car changes noticeably.

Some cars won't even let the car go into first gear, so you're not going anywhere.

How do you test a 4L60E shift solenoid?

Most problems with a4L60E 2-3 Shift Solenoidbecause the coil wire is damaged. The coil wire can be damaged in a number of ways, and the plunger could also get stuck.

You can test the shift solenoids with an ohmmeter. If the solenoids have a resistance between 20 and 30 ohms, they are good. If the resistance is below 20 but still registering, the solenoid has probably melted. If there is no resistance, the solenoid is faulty.

A lot of people don't even have this kind of caliber. For this reason, working with electromagnets is not a recommended DIY project. Dealing with the problem becomes less stressful when you pay your trailer to a professional mechanic who can get the job done quickly and correctly.

When the solenoid is faulty, it can no longer generate the proper magnetic field needed for the vehicle to function properly. There will be a lot of strong vibration when the solenoid breaks.

When the solenoid melts it also exhibits severe vibration but also causes extreme temperatures inside the gearbox.

When the piston sticks, it's almost always due to dirty gear oil or some kind of debris. Fortunately, the piston is easily replaced and when that service is done, it would be wise to also replace the transmission oil and filter to remove any dirty fluid.

4L60E Shift Solenoid Location and Replacement 2-3

In most cases thechange magnetit is located in the oil pan and is connected to the valve body.

Depending on your vehicle, a mechanic can replace the faulty shift solenoid, but sometimes solenoids come in multiple packages. So if there is a problem with one, they all need to be replaced.

When done by a mechanic, it usually takes two to four hours, and shops charge around $60 to $100 an hour. The average total cost to diagnose and replace a shift solenoid is between $150 and $400.

Costs vary by car, but here's a simple breakdown:

  • A single solenoid costs $15 to $100
  • A pack costs $50 to $300
  • Labor costs range from $250-$400

This brings the estimated cost of repairs to between $250 and $600.

It's worth mentioning here that sometimes gearbox costs, magneto replacement costs, and general repairs are a sign that it's time to take the vehicle to a junkyard. Cars are only built to last an average of 12 years.

New motorists can count on their warranty or recalls to keep auto repairs enjoyable and affordable. However, as the car ages, the problems increase. Be careful when buying a used car. If there are more problems than just the solenoid, it might be worth scrapping the car and buying something more reliable.

It is normal for shift magnets to wear over time; However, you can extend its life by making sure to change your transmission oil when recommended by the manufacturer. This ensures that dirt, sludge and contaminants are removed and fresh fluid prevents the pistons from seizing.

Can I drive with a faulty shift magnet?

The short answer is yes, you can drive a vehicle with onebad shift solenoid valve.

Although it may not shift correctly or even exceed a certain gear, you can drive it for short periods of time without serious damage. However, on some digitized systems, the car can disconnect it and make it undriveable.

The fluid control should still work, but not seriously stress the transmission. Be careful with your driving; Don't treat the street as your personal endurance race.

There are situations where the faulty solenoid means the car will not move out of neutral, making the car undrivable.

It is best to have a mechanic diagnose it before it gets to this point. If your car is already there, it may be better to send it to a junkyard than spend money treating that headache.

Note: Driving around a car with a gearbox problem is not just annoying, it is downright dangerous. If the car is unable to shift while driving, it may not be able to accelerate or decelerate, which could lead to a collision.

If you have a transmission problem on the road, you should call roadside assistance. Have the car towed to a local garage to have it checked out by a mechanic.

4L60E 2-3 Shift Solenoid Problems: What's Next?

If you have a vehicle with a 4L60E transmission, you may have a problem with the shift solenoid. Fortunately, if caught early enough, they are easy and relatively inexpensive to replace.

However, if you're not so lucky, you could end up with a car that won't shift out of neutral. If that's the case, you're not going anywhere anytime soon.

One final note: Don't assume your transmission problems are "just a sensor" or "just a solenoid." Oftentimes, mechanics drop that "good news" before delivering the bad news: You need a serious transmission repair.

As car owners, we all deal with the headaches of car repairs. We just have to be smart about how we do it.

Depending on your vehicle, this repair may not be worth doing, especially if the vehicle is old and has various other issues. In this situation, your best bet is to take the car to a junkyard and get a cash payment that can be used on a newer vehicle.

You are in control of your finances and can decide what is best for you in your particular situation. Life is an open road in front of you, and to move forward you must either handle your 4L60e 2-3 shift solenoid problem or chart a whole new path.

FAQs

What causes flares on 4L60E 2-3 shift? ›

In the past, hints and suggestions for causes of 4L60-E 2-3 flare have invariably been centered on problems inside the transmission. Some of the most-common causes are low line pressure and internal leaks of third-gear oil.

What are the symptoms of a bad solenoid 4L60E? ›

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 vibrations or higher than average voltage. However, a melted solenoid wire will cause a drastic transmission temperature or higher than average voltage.

What is a 2-3 shift solenoid? ›

The 2-3 shift solenoid (SS) valve controls the fluid flow acting on the 2-3 shift valves. The 2-3 SS valve is a normally-open exhaust valve that is used with the 1-2 SS valve in order to allow four different shifting combinations. When the PCM detects a 4-3-3-4 shift pattern, then DTC P0756 sets.

What happens when a shift solenoid fails? ›

Ignoring a warning light or code being thrown by a faulty transmission shift solenoid can lead to serious problems, such as running your vehicle in the wrong gear for your speed and conditions. This can then lead to your transmission overheating and breaking down.

What controls the shifting on a 4L60E? ›

In the 4L60E the up-shifts are completely controlled by the PCM. The 4L60E can only do what it's told.

Where is the 3 2 downshift solenoid 4L60E? ›

The 3-2 downshift on/off solenoid is located at the front of the valve body nearest to the manual valve (Figure 1). 2. To remove, simply unplug the wires. Then pull the retaining clip straight down and pull forward on the on/off solenoid.

What is the main cause of solenoid failure? ›

When a solenoid is first energized, its coil receives a pulse of high inrush current that decreases as the plunger closes. If the plunger does not close, the high inrush current continues, which can cause the coil to overheat and burn out. This is the most common cause of solenoid failure and spotting it is easy.

What is the 5 five common problems for solenoid? ›

Rusting, power failure, irregular pressure, missing equipment, an incorrect amount of voltage or current, dirt stuck in the system and corrosion are some of the possible reasons why a solenoid valve may not properly close or open.

What would cause a solenoid to keep going bad? ›

Solenoid coil failure can be caused by a number of factors. Applying an incorrect voltage to the coil will cause it to fail and may cause the coil to burn out. Electrical surges or spikes may also damage the coil. Burnt out coils cannot be repaired and will need to be replaced.

What is difference between 3 2 way and 5'2 way solenoid valve? ›

3 way is a three port valve that allows flow through the valve into a chamber, and then out through the valve exhaust. 5/2 way is a five port, two position valve that will put a fluid or air into one end of a double acting device as well as allowing the other end vent to exhaust.

How many solenoids does a 4L60E have? ›

Features. Fitment : The automatic transmission shift solenoid is suitable for GM Products with the 4L60E Model Automatic Transmission 2003-On. 5 Solenoids : 1 x A Shift Solenoid, 1 x B Shift Solenoid, 1 x 3-2 Downshift Solenoid, 1 x EPC (Pressure Control) Solenoid, 1 x TCC/PWM Solenoid.

What is a 3 Way 2 position solenoid valve? ›

Three-way, 2-position valves typically feature a three-ported design allowing flow paths in several different configurations, while only connecting two ports in any single position. The valve consists of a series of tapered cylinders with diameters that get smaller from top to bottom.

What are the symptoms of a faulty transmission solenoid? ›

You experience delayed gear shifting and a sense of pulling or slipping when trying to shift between gears. The vehicle will not downshift as you slow down. An inability for the solenoid valve to operate may prevent your car from downshifting, and the engine will continue to rev as you attempt to brake.

What are the symptoms of a faulty solenoid? ›

As a result, the common signs of a bad starter solenoid include:
  • Engine Doesn't Crank or Start. ...
  • No Clicking Noise When Trying to Start the Engine. ...
  • Starter Spins Without Fully Engaging the Flywheel (Rare) ...
  • Engine Cranks Slowly (Rare) ...
  • Test the battery. ...
  • Check That Power is Getting to the Starter Solenoid.
May 6, 2019

What sensors can affect transmission shifting? ›

A car has two speed sensors: the ISS and the OSS, working together to show the transmission data to the car's powertrain module. The ISS sensor monitors the input shaft's speed. If these sensors get misaligned, the operation of the transmission system will be affected.

What sensor can cause hard shifting? ›

The Vehicle Speed Sensor measures vehicle speed. When it fails the transmission can stop shifting or shift late and harsh. A bad VSS may also inhibit overdrive and the converter clutch.

Why won't my 4L60E shift on its own? ›

The 1-2 shift failure on the 4L60E is often due to a faulty throttle position sensor (TPS). Test the sensor (there should be a smooth, linear electrical response over the range of motion) or substitute a known good unit.

Can you replace a downshift solenoid? ›

Shift Solenoid: REPAIR INFORMATION

Once it is determined that you have a failed transmission shift solenoid the only repair is to replace the faulty part. Replacing a transmission shift solenoid can be done by most any auto repair shop, automobile dealership service center or you can do-it-yourself “DIY”.

How much does it cost to replace a downshift solenoid? ›

Cost at the Mechanic: $75-$450

Replacing the shift solenoids inside an automatic transmission will take approximately two to four hours for a trained professional. Although the parts are relatively inexpensive, the process of getting to the solenoid is challenging, which increases the labor cost.

Can you bypass shift solenoid? ›

To bypass the shift and TCC solenoids, you simply need to connect standard 194 light bulbs to these individual circuits coming from the PCM and then connect the other side of the bulbs to ignition B+. The light bulbs will then serve as a "load" which will simulate the solenoids.

How do you know if a solenoid is faulty and needs replacing? ›

If the starter engages but does not disengage when you let go of the key, the solenoid is likely bad and the starter may suffer significant damage as a result. Sometimes your car starts, sometimes it doesn't. Intermittent operation can be a sign of a failing starter solenoid.

Does the solenoid affect the transmission? ›

Delayed or Erratic Gear Shifting

If you notice it taking a bit longer for your car to shift gears, it could be a failing solenoid. Dirty transmission fluid can cause solenoids to stay stuck open or closed, thereby making it more difficult for your transmission to change gears when it needs to.

How long do solenoids last? ›

As with any mechanical apparatus, proper and proactive maintenance and care of a solenoid valve can extend product life and ensure predictable operation. On average, a solenoid valve should last between 1 and 3 years.

What happens when a solenoid is stuck open? ›

1. Problem: The valve is stuck open or closed. Generally, the most common reason a solenoid is “stuck” open or closed is because it loses power. If there's no power to the coil or if power is interrupted, the solenoid will cease functioning and remain in whatever position it was last in.

Will a car run with a bad solenoid? ›

Engine Does Not Start

When you have a bad starter solenoid, the starter motor won't work. This means the engine won't start when you turn on the starter switch or press the start button. However, if your vehicle has an automatic transmission, the engine could sometimes not crank because of the neutral safety switch.

What makes a torque converter solenoid go bad? ›

Being a fluid coupler, your car's torque converter relies on transmission fluid to operate correctly. If the fluid becomes contaminated, anything that uses and relies on the fluid can be damaged. Contaminated transmission fluid can cause damage to your converter parts and your transmissions parts.

What is the difference between a 2 2 way and 3 2 way solenoid valve? ›

Unlike 2 way valves, 3 way solenoid valves will usually have 2 ports open at any one time and which ports are open while the coil is de-energised determines the function. Normally closed (NC) 3 way valves block the path between the inlet and outlet ports until the coil is energised.

What is the difference between a 2 way and 3 way solenoid valve? ›

A 2-way valve is any type of valve with two ports: an inlet and an outlet port, typically labelled A and AB respectively. With two ports, the valve passes the water in one direction only. 3-way valves have three ports, labelled A, B, and AB. With three ports, the 3-way valve passes the water in two directions.

What is the difference between a 5 2 and 5 3 solenoid valve? ›

The 5/3 valve differs from the 5/2 valve by having a neutral position – a position that the valve either naturally springs to or is manually selected by a lever operator. There are three different types of neutral position. Each one dictates how the air supply is connected to both outlets.

Should I replace all solenoids? ›

Some say the best way is to treat them like a soft part and replace them on every rebuild, whereas other say that you can check them and only replace the ones that are faulty or worn out.

Is a transmission control solenoid the same as a shift solenoid? ›

If your car has an automatic transmission, the shift solenoid will shift the gears for you. The transmission control unit will take the information from the engine and speed sensors along with other parts of your vehicle to then decide when to shift gears for power and fuel efficiency.

Is there a difference between a solenoids and a relay what is it? ›

The terms solenoid and relay can often be used interchangeably; however, in the Automotive market, the term solenoid generally refers to a "metal can" type, whereas a relay typically refers to the standard "cube" style relay. The contactor is the relay to use when a circuit must support a heavy current load.

What is the difference between 2 position and 3 position valves? ›

2 way and 3 way valve classifications are commonly used in industrial applications. These valves are defined by the number of ports they use. 2 way valves, as their name suggests, consist of two ports: an inlet port “A” and an outlet port “AB.” On the other hand, 3 way valves consist of three ports: “A,” “B,” and “AB”.

What is the difference between a 2 position and 3 position valve? ›

Two position versions are used when simply extending and retracting are desired, while three position valves allow for special operations. The Center Closed version is the most common, and allows "inching" operations. Other options include center exhaust, and center preasure.

What are the 2 main functions of the solenoid? ›

In engineering, a solenoid is a device that converts electrical energy to mechanical energy, using an electromagnet formed from a coil of wire. The device creates a magnetic field from electric current, and uses the magnetic field to create linear motion.

What happens when shift interlock solenoid goes bad? ›

If the shift interlock solenoid has gone bad, the vehicle will not shift out of park, even with your foot on the brake pedal. This is a big problem because you will not be able to drive your vehicle anywhere. If this occurs, most vehicles have a shifter release.

What transmission additive cleans solenoids? ›

TRANS TUNE will help restore shift quality by cleaning sticky varnish from valve bodies and shift solenoids. TRANS TUNE is compatible with all conventional and synthetic petroleum and mineral-based automatic transmission fluids. TRANS TUNE only contains petroleum-based ingredients and will NOT harm your fluid systems.

Do transmission solenoids need to be programmed? ›

They must be programmed or “flashed” to the specific model they are installed in.

Would disconnecting a car battery reset the transmission solenoid? ›

Not likely. Disconnecting the battery will erase many stored issues in computers and radios but only to the extent of removing what the computer remembers. Most all transmissions are computer controlled now so you will also erase all the adapts.

Can a solenoid be reset? ›

On regular solenoid valves, it can be switched back to the operating position by energizing the solenoid, while on solenoid valves with latch-lock function it will not be so. After being energized, the valve must be manually reset by pushing the reset-knob.

How long does it take to fix a shift solenoid? ›

Replacing the shift solenoids takes a day or two. A full rebuild, however, is very time and labor-intensive and will typically take three to four days.

What causes transmission shift flare? ›

By definition, a flare on a shift is when the releasing friction and applying friction elements are both off (or not holding) for a brief moment. This can be caused by excessive torque, inadequate pressure applying the friction elements, or damage to the friction element or surface it holds when applied.

What effect would a broken accumulator spring have on a transmission shift feel? ›

But if there is a lack of oil, a faulty accumulator, or a broken spring, rough shifting and an unpleasant feeling could occur.

What causes a transmission to shift erratically? ›

Line pressures are affected by dirty transmission fluid, low fluid level, a clogged line, or faulty transmission pump can cause the transmission to slip. A bad sensor or solenoid could cause a shifting problem and that is a relatively easy fix by a qualified technician.

What does the neutral safety switch do on a 4l60E? ›

The neutral safety switch is a safety device that only allows you to start your engine when the automatic transmission is in either Park or Neutral.

Can you run a 4L60E without a computer? ›

However, if your trans is, in fact, a 4L60E, running it off a computer is mandatory. On "E" transmissions, the computer controls everything: TCC lockup, gear changes, shift quality and firmness, and line pressure. There are no external adjustments and no noncomputer workarounds.

How many shift solenoids does a 4L60E have? ›

There are 2 shift solenoids in a 4l60e (1-2 and 2-3), and both control up and downshifts with fluid passing through them when commanded to do so by the computer. However, when they go bad, you will notice very quickly.

What is the most common cause of transmission failure? ›

Maintain Proper Transmission Fluid Levels

The #1 cause of transmission failure is low fluid, which causes overheating. In automatic transmissions, it causes delayed engagement, harsh shifts, and slippage.

What are the symptoms of a broken accumulator? ›

Common signs you need to repair your AC accumulator include rattling noises during operation, noticeable refrigerant leaks, and a moldy smell.

What does the accumulator do on a 4l60e? ›

The 1-2 and 3-4 accumulator pistons are responsible for the 1-2 and 3-4 shift feel by providing the hydraulic cushioning of 2nd clutch and 4th fluid pressure and altering the band apply rate.

What two final drive components could cause a clunking noise when shifting an automatic transmission from park to drive park to reverse? ›

The motor mounts could be worn and your engine isn't well secured to the crossmember, causing the clunking sound. Have these parts checked, too. But if it's your transmission, it could be your parking pawl. A parking pawl is a part of your automatic transmission that locks it up.

What sensor can cause shifting problems? ›

Transmission Range Sensor (TR)/ Transmission Position Sensor

The PCM uses this information to control which gears of the transmission to enable or disable. When the TR sensor fails it can cause wrong gear starts, no upshifts, or what feels like a falling-out-of-gear condition.

How do I stop my car from jerking when I change gears? ›

What's the secret to changing down gear smoothly? Maintain light pressure on the accelerator pedal as you press the clutch down, change gear and then clutch up gently (or the car will jerk). Using the accelerator will raise your engine speed to match your road speed, ultimately giving you a jerk free gear change.

Where is the speed sensor located on a 4l60e transmission? ›

sensor is located in the tail shaft housing on the passenger side.

Can I bypass my neutral safety switch? ›

1 Answer. Please, do not bypass the safety switch! This switch keeps your vehicle from starting in gear, and is important for the function of the vehicle. They keep children left alone in the car from starting it up in gear, and also guard against similar surprises after accidents.

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