Car Jumps Forward After Stop Transmission Impala

Symptoms

• Your car may jump forward after you come to a stop.
• The transmission may slip or hesitate when shifting gears.
• You may hear a clunking or grinding noise from the transmission.
• The check engine light may be on.

Causes

There are several possible causes for this problem, including:

• A faulty transmission control module (TCM)
• A worn or damaged transmission
• A low transmission fluid level
• A dirty transmission filter
• A faulty torque converter

Diagnosis

To diagnose the problem, a mechanic will need to:

• Inspect the transmission for leaks or damage.
• Check the transmission fluid level and condition.
• Scan the TCM for trouble codes.
• Perform a road test to observe the symptoms.

Repair

The repair for this problem will depend on the underlying cause. In some cases, a simple fluid change or filter replacement may be enough to fix the problem. In other cases, more extensive repairs, such as replacing the TCM or transmission, may be necessary.

Cost

The cost of repairing this problem will vary depending on the severity of the issue and the type of repair required. A simple fluid change may cost around $100, while a more complex repair, such as replacing the transmission, could cost several thousand dollars.

Prevention

There are a few things you can do to help prevent this problem, including:

• Regularly check the transmission fluid level and condition.
• Change the transmission fluid and filter according to the manufacturer’s recommendations.
• Avoid driving in harsh conditions, such as off-road or in extreme heat or cold.
• Have the transmission inspected by a qualified mechanic at least once a year.