1993 Gmc Sierra 1500 Why My Automatic Transmission Jumping?

1993 Gmc Sierra 1500 Why My Automatic Transmission Jumping?

Does GMC Sierra have transmission problems?

Here are some actual complaints logged with the NHTSA about the 2018 GMC Sierra 1500 Transmission Problems. BRAND NEW 2018 SIERRA 1500 Z71. WHEN DRIVING THE TRUCK FOR THE FIRST TIME AFTER SITTING FOR A NUMBER OF HOURS (6+HRS) THE TRUCK EXPERIENCES A “HARD” 1-2 SHIFT.

How do you reset the transmission control module on a GMC Sierra 1500?

Steps to Resetting Transmission Control Module

  1. Step 1: Turning Key Position. Before you start resetting the transmission control module is to go through the key position.
  2. Step 2: Press gas pedal.
  3. Step 3: Keep Waiting.
  4. Step 4: Turning the Key Off.
  5. Step 5: Releasing Gas Pedal.
  6. Step 6: Wait Again.
  7. Step 7: Ready.

What causes a 4L60E transmission to slip?

ANSWER: This is a common issue with many GM vehicles using the 4L60E transmission, and the odds are high it will not require overhaul. Slippage can occur due to several possible causes, such as low fluid level, a slipping torque converter clutch, or slipping clutch or band within the transmission.

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How can I tell if my 4L60E transmission is bad?

3 Symptoms Of A Failing 4L60E Transmission And How To Diagnose The Problems

  1. No Third Gear – You put the vehicle in drive, start off the transmission, and shift to second gear.
  2. No Second Gear/Reverse – The second most common symptom of a failing 4L60E transmission is your inability to shift to second gear and go reverse.

Has GM fixed the 8 speed transmission problems?

Since the service bulletins have come out, many owners have found that the new fluid does indeed fix the shudder issue. After driving for a week or so, the new fluid cleans up many of the internal issues as the adaptive shift algorithms go through their “relearning” process.

What problems do Chevy Silverados have?

One of the most commonly reported concerns about the 2008 and 2009 models is the trouble with burning oil. According to Car Complaints, the 2008 Silverado features over 30 consumer reports of excessive oil burning around the 80,000-mile mark. The average costs to repair these issues is about $2,700.

How do I know if my transmission control module is bad?

Some of the most common signs of a bad transmission control module are as follows:

  1. Slow Acceleration: It takes longer than normal for your vehicle to pick up speed.
  2. Gear Slippage: Your transmission switches gears without warning or without you shifting.
  3. Inability to Shift: You can’t shift out of neutral.

How do you reset the transmission control module on a Dodge?

How do you reset the transmission control module on a Dodge? I believe it’s also possible to reset the TCM by cycling to the run position without pressing on the brake pedal. Then slowly depress the gas pedal to the floor and let it back up. Afterwards, cycle to the off position.

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How do you reset your transmission?

Procedure Reset Transmission Adaptive Learning DIY

  1. Turn the key to position 2. You should see all the dash lights come on.
  2. Press the gas pedal all the way.
  3. Wait.
  4. Turn key to OFF, position 0.
  5. Release the gas pedal.
  6. Wait 2 minutes.
  7. Start the car and drive.

What are the symptoms of a bad pressure control solenoid?

If you’re experiencing transmission solenoid troubles, it will become evident in one of four ways:

  • Delayed gear shifting.
  • You can’t downshift, and your engine continues to rev even when applying the brakes.
  • Your transmission gets stuck in neutral.
  • Shifting gears become rough and choppy.

What is the best transmission additive for slipping?

Our pick for the best transmission additive is the Prolong Super Lubricants PSL15000. It is one of the best transmission additives on the market. It reduces leaks, shudders, slippage, and sludge buildup. For a less pricey option, consider the Lucas LUC10009.

Can you fix a slipping transmission?

Transmission bands can wear out and cause slipping. To fix this problem, the defective bands should be replaced. Sometimes the bands are fine and only need adjustment. Bands and clutch plates throughout the transmission and in the torque converter may become worn or burned out from inadequate transmission fluid.

How much horsepower can a 4L60E transmission handle?

Go with a performance rebuild, you will be looking at about $1600 for a fully built trans that can handle around 600hp.

What are the symptoms of a failing torque converter?

When the torque converter starts malfunctioning, you may feel shuddering and even slipping in overdrive. You usually notice your car shuddering because it feels like it’s vibrating. Your car will vibrate even when you’re not going very fast. The shuddering makes the car lag and is very noticeable.

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Is there a fuse for shift solenoid?

Most modern vehicles have some sort of transmission control module that monitors the transmission through various sensors, such as the shift -position sensor and the transmission speed sensor. Additionally, the TCM and solenoid wiring are protected by fuses.


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