In 1982, General Motors produced the 700R4 transmission. This transmission was in production for ten years until it was renamed 4L60 and upgraded to be electronically controlled rather than hydraulic, giving it the E in its name. The 4L60E gets its name from its characteristics. It is a four speed transmission (4L60E). It is also designed particularly for longitudinal engines (4L60E) and has four forward gears and one reverse gear. It has a torque capacity of 600 pound feet of torque (4L60E). And as stated above, the hydraulic components originally installed in the 4L60 were upgraded to electronic components (4L60E). The computer now standard with the 4L60E transmission tells the transmission when to shift, allowing for more than one set of shift points to be programmed into the transmission.
- TPS: Your TPS, or throttle position sensor, sends a signal to the electronic control unit when the throttle valve is either closed or wide open. If your vehicle is shifting late or very suddenly between first and second gear, you could have an issue with the throttle position sensor.
- No Upshift: On the rear of your transmission, there’s a speed sensor, or VSS, which sends information about how fast the car is supposed to go to the engine control module (ECM). If this sensor malfunctions, your speedometer will be unable to read speed changes. This is a dangerous problem and should be addressed immediately.
- Sluggish Start: If you’re experiencing issues with your vehicle taking longer than usual to start moving or if it rolls at times, but starts up normally if it’s manually shifted into second gear, you most likely have an issue with your shift B solenoid. To be sure, you should bring your vehicle to Eagle Transmission to have a complete diagnostic test performed in order to understand the cause behind the problems you’re experiencing.
- 3rd Gear Start: Sometimes, you may find that your vehicle is struggling to start in any gear other than third, although you may still be able to shift once you do get going. Generally, this issue is caused by a vehicle speed sensor malfunction.
- Reverse Gear: Sometimes the reverse gear will either slip or won’t function at all. Unfortunately, this is a common problem with this particular transmission when in reverse and can be caused by a number of different factors, however the most common cause is debris buildup within the transmission. The best way to know for sure what is causing your transmission problem is to have a diagnostic test performed by a qualified transmission specialist.
- No Movement: Another problem you may experience with this transmission is no movement at all. Obviously, this is a very big problem and is most likely a failure that stems from one of the pumps. If there is a loss in fluid flow to the transmission, your transmission will fail to function properly. In this case, it is best to keep the engine off and have the vehicle towed to Eagle Transmission of Garland. We offer free towing on all major repairs.
- Shifting Troubles: If your transmission is shifting normally, but isn’t moving into first or fourth gear, you most likely have an issue with your shift A solenoid. Visit Eagle Transmission for a complete diagnostic test.
- 1-2 Accumulator: If your 1-2 accumulator is malfunctioning, you may experience rough or delayed shifting between first and second gears.
- Slow Driving: Sometimes, when there is a major issue with the transmission, often electronic, your car will go into limp mode to maintain power. If you notice that your car suddenly slows down without completely stopping, you could be in limp mode. Bring your car to Eagle Transmission as soon as possible to have this issue fixed.
- Decreased Performance: If you notice that your car’s performance is not where it should be and it is not firmly shifting gears, you more than likely have a leak in the boost valve. If not, you could have an issue with a clogged electronic power control. This is a very serious problem that will need to be addressed as soon as possible.
You’ll find this transmission in a number of vehicles like Cadillac, Chevrolet, GMC, and Buick.
If you notice any of these trouble signs, contact Eagle Transmission right away to ensure your vehicle is repaired the right way the first time. Remember, you should avoid driving your vehicle if you think you may be experiencing transmission problems as this can not only be dangerous, but can lead to further damage down the road.