Technicians removing a transmission on a transmission jack at Northwest Express Auto Care, Katy TX

Transmission Service in Katy, TX

Transmission repair at Northwest Express Auto Care in Katy, TX fixes slips, leaks, and rough shifts, restoring smooth, efficient gear changes and long-term drivetrain reliability.

What’s Included

Scan for fault codes and road-test shifting

Inspect fluid and internal components

Services offered varies based on transmission type and shop capabilities, see your shop for details.

When To Get This Service

Have your transmission inspected at the first sign of trouble—early repair prevents costly internal damage.

Look for these warning signs:

Gears slipping or engine revving without acceleration
Hesitation, jerking, or rough shifts between gears
Clunking, humming, or whining noises while driving
Reddish or dark fluid leaking under the vehicle
Burning smell after driving or hot-fluid odor
Transmission or check engine light illuminated

We recommend replacing transmission fluid every 30,000–60,000 miles for automatics and 60,000–100,000 miles for manuals, following your owner’s manual.

Your Service Questions, Answered.

We’ve put together the most important transmission information to help you drive with confidence. Need more help? Just give us a shout!

What transmission do I have?

Manual vehicles use a clutch to connect and disconnect the transmission to the engine by the use of a pedal next to the brake pedal. If you are required to shift the vehicle yourself, your transmission is manual. Otherwise, your vehicle is likely an automatic or CVT. To confirm your transmission type, refer to the owner’s manual or check just inside the driver’s side door to locate a white sticker. The sticker contains specific details on your vehicle including the year it was produced, transmission type, engine specifications, and other pertinent information. If you are unable to locate the information for your vehicle, contact us and provide your VIN or license plate number and we’ll be able to inform you what kind of transmission your vehicle has.

How to check transmission fluid?

Many new transmissions do not have the traditional dipstick for checking fluid levels and its condition. In many cases, you will need to seek out an automotive professional to check the fluid for you. Some vehicles require the use of specialized equipment to access the transmission.

When to change transmission fluid?

A transmission fluid change removes the bulk of dirty fluid and replaces it with clean transmission fluid. A fluid change should be performed every two years or every 30,000 miles. Alternatively, a transmission fluid flush removes all old, dirty fluid from the transmission and new, clean fluid is added. A transmission flush should be performed every three years or 45,000 miles.

What is a CVT Transmission?

CVT or Continuously Variable Transmission is a type of automatic transmission; how it operates differs in comparison to an ordinary automatic transmission, however. A CVT changes gears flawlessly through an infinite range of gear ratios as opposed to an automatic transmission that possesses a fixed number of gear ratios. Because the CVT has just one gear that is variable, you will not feel the shift from gear to gear as you would with an ordinary automatic transmission.

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Visit Us Today

From oil changes and brake repairs, to tire service and engine diagnostics, Northwest Express Auto Care is here to Keep You in the Driver’s Seat.

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 Trustindex verifies that the original source of the review is Google. One of the best places we have been too.  He has a new customer for life!
  
 
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   Xim 
 
 
 
 Trustindex verifies that the original source of the review is Google. They got me in and out faster than expected. Clear communication regarding the condition of my rotors and pads. The car drives smoothly and I'll definitely be returning for my future maintenance needs!
  
 
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   Glenn Howard 
 
 
 
 Trustindex verifies that the original source of the review is Google. Great service and professional attitude. I was traveling for Easter and had a mechanical emergency. The shop was able to get my car repaired and back on the road in less than an hour. Great customer service.
  
 
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   Derrick lincoln 
 
 
 
 Trustindex verifies that the original source of the review is Google. They really know what they’re doing
  
 
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   richar garcia 
 
 
 
 Trustindex verifies that the original source of the review is Google. Thanks for always having my back!
Excellent service!! ??
  
 
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   Ralph Saldana 
 
 
 
 Trustindex verifies that the original source of the review is Google. I have always trust this business.. I know this company since it started . The guys there are always truthful and honest workers . They worked with me to make sure my vehicle was fixed right.  I will always go back .. I have worked with Carlos and now Ricco they both feel like family own business. Happy doing business with them.
  
 
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   Linda Vasquez 
 
 
 
 Trustindex verifies that the original source of the review is Google. Execelente es el lugar al que confío
Mi carro con ojos cerrados . Súper amables y los precios 10/10

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Transmission fluid service

Transmission Flush in Katy, TX

A transmission flush replaces the old, broken-down transmission fluid with fresh fluid that meets your manufacturer's specification. Clean fluid keeps the transmission cool, shifting smoothly and protected from wear, and it is one of the least expensive ways to avoid a major transmission repair.

When do you need a transmission flush or fluid service?

Follow the interval in your owner's manual, which is often every 30,000 to 60,000 miles for automatic transmissions. Have the fluid checked sooner if it looks dark or smells burnt, or if you notice slipping, delayed or rough shifts. Katy heat, towing and stop-and-go traffic all count as severe service.

Flush or drain-and-fill?

Some vehicles do best with a full fluid exchange and others with a drain-and-fill and filter service. Our technicians check your vehicle's requirements and the condition of the fluid and recommend the right service. Call or text 832-683-4487 to schedule.