Why does my 4L60E transmission only shift manually?

4L60E Transmission Only Shifts Manually If the transmission only shifts manually (and therefore doesn’t shift automatically), there is probably a problem in either the PCM or one of the related sensors sending information to the PCM. This could be the VSS (vehicle speed sensor) or the TPS (throttle position sensor).

What’s the gear ratio on a GM 4L60E?

The 4L60E is a 4-speed (meaning it has 4 gears) transmission, with gear ratios of 3.06; 1.63; 1:1; 0.70 ( overdrive ). Reverse has a gear ratio of 2.29. It weighs 146 lbs before transmission fluid is added and 162 lbs with it. GM claims that the factory transmission fluid should last the entire working life of the product.

How much fluid does a GM 4L60E need?

The 4L60E transmission weighs 146 pounds dry, and 162 wet. It requires 8.4 quarts (9.64″ torque converter) or 11.4 quarts (11.81″ torque converter) of transmission fluid, Below is a list of common transmission problems with the GM 4L60E Transmission and possible solutions to repair.

What causes a WoT Shudder on a 4L60E?

3. 1-2 Shift shudder at WOT (Wide Open Throttle); delayed or abnormal 1-2 shift; There’s a problem ONLY on the 1-2 shift: 1-2 accumulator piston cracked or stuck cocked in the bore. Check the yellow spring inside the accum housing for breakage.

Where is the cooling inlet on a Chevy 4L60 automatic transmission?

The automatic transmission usually has its cooling inlet on the right side with a square oil reservoir. The key distinction of the 4L60E automatic transmission (1997-2006) from the early 4L60E (1992-1997) or 4L60 (1990-1992) or 700R4 (1982- 1989) is the “six hex bolts” of the rear output or rear cover.

Can a bad clutch pack cause a 4L60E to stop working?

Your 4L60E has a set of clutches that work with both 3’rd and 4’th gear. It’s referred to as the 3-4 clutch pack. A bad 3-4 clutch pack can certainly cause the 3’rd and 4’th gear to stop working. In fact, once the transmission “shifts” into third, it’ll feel like you lost the whole thing.

Is it possible to fix an inaccurate speedometer?

Fixing your inaccurate speedometer will also require some real-world testing to determine the percentage of error introduced by your new tires or gearing. For that, you’ll need a GPS-connected device to verify speed–a phone app, a portable navigation system, or something like a VBox should do the trick.

What causes a check engine light on a 4L60E?

Heavy Shift Into 2nd With 4L60E This could be due to a worn TCC regulator valve. You will also probably have a check engine light on on the dashboard and a diagnostic code of 1870 – internal slippage. The transmission will need to be taken apart to access the TCC regulator valve.

What kind of transmission is the 4L60E?

What is a 4L60E Transmission? The 4L60-E is an automatic shift, four-speed overdrive, longitudinally positioned transmission. It has been considered to be the best rendition of the finest overdrive automatic transmission ever produced.

Why does my 4L60E have no reverse?

Slow, slipping or no reverse: “lo-reverse” clutches are worn out, fluid leak in the reverse apply circuit, or broken sunshell.

When to replace the accumulator housing on a 4L60E?

Check the yellow spring inside the accum housing for breakage. Also, if the accumulator housing walls are scored, the housing must be replaced. 4. 1-2 shift is delayed and harsh, may not shift into OD: TPS needs to be checked for smooth and linear electrical response over the entire range of motion. If not, this must be replaced. 5.

Is the thm700 4L60E transmission for sale?

Current shipping times can vary. A 4L60E transmission is a redesign of its predecessor the THM700. Our 4L60E transmission is for sale with all the bells and whistles. This is not your everyday rebuilt 4L60E.

Is the 4L60E transmission Supercenter in America?

America’s 4L60E Transmission Supercenter! 1. 2. 3. Yep, It’s Really That Easy. So, you are about to spend your hard earned dollar on a transmission for your vehicle and you’ve taken to the internet to educate yourself about your future purchase.

What causes a Chevy transmission to not shift?

Low transmission fluid level. Chevy transmission won’t shift, stuck in 1st gear or limp mode – Speedometer may also display zero at all times. It could be internal transmission failure, low transmission fluid, or faulty Vehicle Speed Sensor (VSS sensor).

What kind of transmission does a Chevy Silverado have?

71 people found this helpful. I have a 94 Chevy Silverado 5.7 2wd 4L60e transmission. I had no head lights speed odometer quit working an trans would quit shifting out of 1st gear my diagnosis was to replace solenoid s A/b 1\2 2/3.

What happens if your Chevy transmission is out of fluid?

Low transmission fluid causes most Chevy transmission problems, including harsh shifting, delayed shifting, and no shifting if there is a total loss of transmission fluid. If your Chevy transmission is low or out of fluid, avoid running or driving until the transmission fluid level is corrected to avoid unnecessary transmission damage.

When to replace shift solenoids in GM 4L60-E?

TIP 4: If your transmission is slipping, replacing the shift solenoids, even if they’re fried will not solve the slipping issue. The 4L60-E transmissions uses several solenoids and sensors to control/activate its 4 gears.

When did the GM 4L60 E transmission come out?

The 4L60-E is the “E”lectronically shift controlled version of the 4L60. The Late 4L60-E was released in 1997 in and fully phased into wide use through GM by 1998 in both RWD car platforms (including the C6 Corvette) and trucks in both 2wd and 4wd configurations.

What are the most common problems with the 4L60E?

That is either the torque converter or harmonic balancer. Make sure you aren’t confusing the shutter of a poor running engine with the vibration of a transmission with a loose converter. Below is a list of some of the most common issues with the 4L60E. This is one of the most common problems with the 4L60E. It is pretty easy to diagnose.

What kind of car does the GM 4L60E drive?

The transmission was used in a large number of vehicles, including GM vans, SUVs, trucks, as well as many rear-wheel-drive cars. Some of the most popular cars that used the transmission include the Chevrolet Corvette, Camaro, Impala, and more. Just like any other transmission, 4L60E can also experience problems and might require an upgrade.

What are some common problems with the 4L60E transmission?

Three of the most common problems found in a GM 4L60E transmission are: 3 – 4 Clutch Pack Failure Broken Drive Shell Worn TCC Regulator Valve

Is a 4L60E interchangeable with a 4L80E?

FYI – 4L60E & 4L80E transmissions are NOT directly interchangeable. The wiring pinout of the trans plug is different, and 2 VSS’s are used versus 1 on the 4L60E. Besides the wiring difference, the ECM also requires a segment swap as that portion of the transmission control is completely different.

Does the 4L60 have overdrive?

The 4L60 was manufactured by General Motor’s Corporation and was available from 1990 to 1992. The 4L60 was the first automatic overdrive transmission specifically designed for rear-wheel high performance applications.

How many solenoids are the 4L60E?

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. Your transmission will display a variety of symptoms, but sometimes these issues can be confused by other common 4l60e issues.

What kind of overdrive does a 4L60E have?

4L60E No Overdrive Diagnosis. The 4L60E is a for speed automatic transmission with a .70 overdrive. The overdrive gear is gear number four. As the 4L60E ages, one of the most common problems that it develops is that it won’t shift into overdrive anymore.

What happens when Shift Solenoid goes bad in 4L60E?

Inconsistent Shifting– Often when a shift solenoid goes bad in the 4L60E, it’ll cause a lot of erratic shift behavior. The transmission will skip gears. It also may act like it is trying to “find the right gear”.

What are the most common 4L60E transmission problems?

No forward movement in OD or D, but L2, L1 and R work: Forward sprag is broken. Transmission must be removed and rebuilt. Try not to run or drive the car or further damage could result. 18. Extremely harsh shifts from P or N, normal shifts at WOT: EPC (Electronic Pressure Control) solenoid failed.

Why does my 4L60E shift in and out of overdrive?

The issue is it shifts in and out of overdrive repeatedly if I climb a hill or put load on it. It only does this at a narrow speed range at roughly 45-50mph at 1200-1300rpm. If I am driving faster (on the highway for example) and I hit a hill it doesn’t do it. All other shifting occurs normally during acceleration and deceleration.

What do you need to know about shift solenoids?

The shift solenoids are the means by which this control is physically achieved within the transmission. Shift solenoids are relatively basic in design and principal. Simply put, the shift solenoid has a spring loaded plunger inside of it that will move transmission fluid in and out of different parts…

How can I get my fitech 4L60E to shift?

In the initial setup screen, go into the Auto Transmission screen. In the screen there are two fields to select a transmission. In the first setting, it needs to be set to 4LOXE. (This was my problem). In the second field, select 4L6XE for a 4l60e or 4L8XE for a 4l80e. Hope this helps. Click for thumbs down. Click for thumbs up.

What’s the difference between the 4L60 and 4L 60E?

The biggest difference between the 4L60 and 4L60E is how both are controlled. For 4L60E control comes from a computer. For the 4L60, control comes form a TV cable. With one being controlled by computer and the other not, there are compatibility issues that the two have.

How many solenoid are there in a 4L60E transmission?

The 4L60E family of transmissions use 2 shift solenoids, initially called Shift Solenoid A & Shift Solenoid B, later changed to comply with OBD II (On Board Diagnostics revision 2) regulations to 1-2 Shift Solenoid & 2-3 Shift solenoid.

Why is my Trans bad on my 4L60E?

Trans seems noisy when moving in 1st and Reverse, noise goes away instantly if you shift to N or the transmission goes into 3rd gear: Reaction planetary is worn out due to high miles or insufficient lubrication. Not a critical failure, but not a good sign either.

Why does my transmission not shift into 3rd or 4th?

P0121 is a throttle position sensor and the P0171 ha to do with the engine running too lean Any luck getting this addressed since your last post, Ozzie? Not yet, I think I will try replacing the solenoids in the transmission first. If that doesn’t work then I guess its time to have it rebuilt.

Why does my 4L60E transmission only shift manually?