Sergeant Clutch Certified Engine & Transmission Repair Shop

09/28/2026

Three things worth knowing about who works on your vehicle.

Our mechanics are certified, which means somebody independent has tested the knowledge rather than us simply asserting it.

We use quality parts, because on a transmission the cheap component is not a saving, it is a return visit.

And we offer warranties on the work, so the repair is backed rather than just promised.

None of that makes a shop good by itself. All of it means the basics are covered before the conversation even starts. 📞 (210) 239-1600

09/28/2026

What does transmission slipping actually mean? Transmission slipping means the engine speeds up, but the automatic transmission does not transfer that power to the wheels as firmly as it should. You might press the gas, see the RPM jump, and feel little acceleration. It can also feel like a brief loss of power between shifts.

Inside the transmission, fluid pressure applies clutches that hold the selected gear. If those clutches cannot hold firmly, they slip. Possible causes include low fluid, a pressure problem, or worn internal parts.

A rise in RPM during a normal shift does not automatically mean the transmission is slipping. The useful clue is whether the RPM flares without a matching increase in vehicle speed. A road test and diagnostic check can tell those apart before recommending a repair. When your transmission starts slipping call the Transmission Expert in San Antonio, Texas – Sergeant Clutch

09/27/2026

09/26/2026

If somebody has quoted you a transmission replacement, get another set of eyes on it before you agree.

Not because shops are dishonest. Most are not. But a general repair shop that does not open transmissions has one option it can execute confidently, and that is installing a different unit. When your only tool is replacement, everything looks like a replacement.

A shop that rebuilds has more options, and more options usually means a smaller number.

Bring us the estimate.

09/25/2026

Sometimes somebody comes in braced for a list of expensive problems and we tell them the car is fine.

That happens more than people expect, and it is one of the better parts of this job. Not every visit ends in a repair. Some end with a customer driving away relieved and a shop that made almost nothing on the visit.

That is fine by us. We would rather be the shop you trust in five years than the shop that squeezed you today.

If you have been putting off getting something looked at because you are afraid of the answer, come find out. 📞 (210) 239-1600

09/24/2026

San Antonio Transmission Repair Shop - Check Engine Light On? Transmission grinding? Transmission Oil leaking? Transmission slipping? Count on the experts at Sergeant Clutch located at 6557 Walzem Road in San Antonio, Texas.

09/24/2026

Five weeks out from November 1, when Bexar County vehicles need a passing emissions test before registration renewal.

Two things that will save you a wasted trip and a wasted fee. Make sure your check engine light is off, because an active fault is an automatic failure. And do not wait until the last week, when everybody else in the county has the same idea at the same time.

We can find out what is causing a light and put it right before it costs you. 📞 (210) 239-1600

09/24/2026

How’s your Shift? When you have transmission problems call the transmission experts at Sergeant Clutch in San Antonio, Texas 210-239-1600.

09/23/2026

Sergeant Clutch Certified Engine & Transmission Repair Shop pledges to use high-quality automotive and transmission parts for all auto and transmission repairs and services. Our commitment is to provide reliable workmanship and quality parts to help ensure the performance and longevity of every repair.

09/23/2026

Automatic transmission fluid does more jobs than most people realize. It transmits force through the torque converter, provides the hydraulic pressure that operates the clutches, carries heat away, and holds specific friction properties the clutches depend on.

Which is why the correct fluid matters so much. Modern transmissions are engineered around a particular specification, and the wrong fluid can cause shudder and shifting complaints in a unit with nothing mechanically wrong with it.

We use what your transmission actually calls for. Not what is cheapest on the shelf. 📞 (210) 239-1600