Why does my 4L60E shift hard?

The pin which the piston rides on is steel and commonly wears the pin bore into an egg shaped hole. The accumulator then leaks and causes a harsh 1-2. The purpose of the accumulator is to cushion the shift. If the accumulator is leaking there is no or reduced cushion effect giving you a harsh shift.

Can a worn transmission pump cause transmission slippage?

Worn transmission pump: The transmission pump supplies pressurized hydraulic fluid to the transmission. A pump that is damaged or worn can result in a lack of internal pressure and transmission slippage. You may hear a whining noise, or notice a fluid leak. Solution: Typically, the transmission must be rebuilt or replaced when the pump fails.

What is the shifting solenoid on a Chevy S10?

The shifting solenoid on a Chevrolet S-10 pick-up is designed to regulate when the transmission shifts. This solenoid is part of the electronic transmission control system, and is controlled by the powertrain control module, or PCM. The PCM actuates the shifting solenoid when it determines that an upshift or downshift is required.

What causes a transmission band to slip in a car?

Transmission bands and clutches must engage and release in precisely regulated time for the transmission to perform optimally. Transmission bands can become worn or broken, which will cause the transmission to slip. Bands are what link the gears in the automatic transmission together.

What to do when transmission shifts from 1st to 2nd gear?

If yes, replace them. If they are fine, go on and inspect the second spring in the valve. Clean or change this spring and put all the components back together to reassemble the transmission. If you have not changed the fluid and replaced the filter already, do that while changing these parts.

Why is my transmission slipping in first gear?

The transmission in your vehicle is 14 years old and has 160,000 miles on it. It is most likely starting to slip as a result of normal wear and tear. It is probable that the first and second clutches are worn out which is why the transmission is slipping when driving in those shifts.

The shifting solenoid on a Chevrolet S-10 pick-up is designed to regulate when the transmission shifts. This solenoid is part of the electronic transmission control system, and is controlled by the powertrain control module, or PCM. The PCM actuates the shifting solenoid when it determines that an upshift or downshift is required.

If yes, replace them. If they are fine, go on and inspect the second spring in the valve. Clean or change this spring and put all the components back together to reassemble the transmission. If you have not changed the fluid and replaced the filter already, do that while changing these parts.

Can a faulty solenoid cause a transmission to slip?

Solution: Sometimes, faulty solenoids can be replaced by themselves. Other times, they are integral to the valve body and the entire unit must be replaced. The transmission also could get damaged from the slipping this problem creates. In this case, the transmission may need to be built or replaced.

Why does my 4l60e shift hard?

The pin which the piston rides on is steel and commonly wears the pin bore into an egg shaped hole. The accumulator then leaks and causes a harsh 1-2. The purpose of the accumulator is to cushion the shift. If the accumulator is leaking there is no or reduced cushion effect giving you a harsh shift.

Why is the transmission not shifting on my Chevy Silverado?

Take a couple of easy steps to see why your truck is not shifting. No need to panic yet. This article applies to the Chevrolet Silverado GMT800 (1999-2006). Your transmission is just supposed to shift and leave you alone.

Can a Chevy Silverado go from 1st to 4th shift?

Transmission is in Limp Home Mode or has no electrical power. Also, PCM has lots of error codes. No 1st or 4th, shift 2nd to 3rd by itself when put in D or OD and locks converter: Goes into gear but sluggish like brakes are on, can manually shift to 2nd to get moving, then put in OD and truck shift 3rd as well as 4th are OK.

Why does my Chevy transmission not go into 3rd gear?

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). Chevy transmission won’t go into 3rd or 4th gear – This is a good indication that 3 or 4 gear clutches are worn.

Are there no reverse gears in a Chevy Silverado?

No Reverse in 2nd or 4th gear, 1st and 3rd only: Transmission goes into gear harshly, vehicle sluggish from start, no 1st, 4th, or torque convertor lockup, manual 2nd, 3rd, reverse gears only working, check engine light is on: Transmission is in Limp Home Mode or has no electrical power. Also, PCM has lots of error codes.

Are there transmission problems in a 2004 Chevy Silverado?

These trucks are getting older, and it is hitting the point that your 2004 Silverado may be having transmission problems. Below, you’ll find a ton of troubleshooting your transmission problems. The 2004 Silverado was a carryover from the 2003 model year. It is necessary to determine what kind of transmission is in the truck.

Why is my Chevy Silverado not moving in any gear?

Not Moving in any Gear – If your 2004 Silverado Transmission has a problem moving in any gear, it is likely caused by a lack of transmission fluid. No matter how silly that sounds, and how convinced you are that it is not the problem, go ahead and check it anyway.

Transmission is in Limp Home Mode or has no electrical power. Also, PCM has lots of error codes. No 1st or 4th, shift 2nd to 3rd by itself when put in D or OD and locks converter: Goes into gear but sluggish like brakes are on, can manually shift to 2nd to get moving, then put in OD and truck shift 3rd as well as 4th are OK.

How is the transmission on a Chevy Silverado controlled?

The transmission in your truck is controlled by the PCM (powertrain control module). It is sophisticated enough to be able to tell you if there is an issue with your transmission. The local auto supply may be able to scan it, but it may take a better scanner to dive deeper into the PCM.