Transmission Repair in
Eugene, OR

We handle the full range of transmission services, from routine maintenance to complex diagnostic and repair work:

Transmission Fluid Exchange and Service

Transmission fluid does more than lubricate — it transfers hydraulic pressure to engage clutch packs and planetary gear sets in automatic transmissions, and cools and lubricates the entire assembly. Degraded fluid is dark, smells burnt, and leaves your transmission without adequate protection. We perform transmission fluid exchanges using the correct OEM-specified fluid for your vehicle — manufacturer specs vary widely, and the wrong fluid causes real damage.

Automatic Transmission Repair and Rebuild

Automatic transmission problems range from a simple solenoid or sensor failure to a full mechanical rebuild. Our diagnostic process identifies exactly what's failed before we recommend any repair. Automatic transmission work is complex and expensive — we take the time to diagnose correctly rather than replace parts that aren't the actual problem.

Manual Transmission Repair

Manual transmissions are mechanical rather than hydraulic, but they fail — worn synchros that cause grinding on shifts, failed bearings that produce noise, worn shift linkage that makes precise gear selection difficult. Manual transmission work is a specialty that fewer shops maintain proficiency in. Our technicians have the experience for it.

CVT Transmission Service and Repair

Continuously variable transmissions (CVTs) are found in most modern Subaru, Nissan, and many Honda and Toyota models — a large slice of what Eugene drivers own. CVT fluid is distinct from conventional ATF and must be changed on schedule; neglected CVT fluid causes belt and pulley wear that leads to expensive replacement. We service and repair CVTs on all major platforms.

Transfer Case Service

On four-wheel-drive and all-wheel-drive vehicles, the transfer case routes power between the front and rear axles. Transfer case fluid service is frequently skipped — and the result is premature wear in drivetrain components that cost far more to replace. We service transfer cases on trucks, SUVs, and AWD vehicles throughout Lane County.

Transmission Diagnostics

Transmission fault codes, shift-quality complaints, slipping, shuddering, and hard shifts all require proper diagnosis before any repair recommendation. Our factory-grade scan tools read transmission-specific codes and live data — shift solenoid operation, line pressure, torque converter lock-up behavior — that a parts-store scanner won't access. We diagnose first, estimate second.

Clutch Replacement and Adjustment

A clutch that slips under load, chatter on engagement, a pedal that sits lower than it should, or difficulty getting into gear are all signs of clutch wear. Clutch replacement is a planned job when caught early and an emergency job when ignored. We replace clutch assemblies on all manual transmission vehicles.

Slipping — Engine Revs But the Vehicle Doesn't Accelerate

The clearest sign of transmission trouble: the engine revs, but the vehicle doesn't move with it. In an automatic, this usually means worn clutch packs or a failing torque converter. In a manual, it's typically a worn clutch disc. Either way, this is a service-now situation — continued driving accelerates the damage.

Delayed Engagement After Shifting

A pause between shifting into Drive or Reverse and the vehicle actually moving suggests low fluid, degraded fluid, or a beginning hydraulic failure. Early diagnosis here is worth acting on.

Rough, Hard, or Erratic Shifts

An automatic that slams into gear, shifts too early, shifts too late, or hunts between gears is telling you something. These behaviors are often tied to a solenoid, sensor, or fluid condition issue — the kind of thing that's inexpensive to address before it cascades into mechanical damage.

Shuddering or Vibration When Accelerating

Torque converter shudder — a distinctive vibration during light acceleration at highway speed — is a common complaint on many automatic transmission platforms. It's often fluid-related and can sometimes be resolved with a fluid exchange and friction modifier. We diagnose the specific cause before recommending any course of action.

Grinding or Whining Noise

Grinding during shifting in a manual usually means worn synchros. A whine that changes with vehicle speed (not engine speed) often points to a differential or bearing issue. We put the vehicle on a lift and diagnose the noise source before recommending anything.

Burnt Smell or Discolored Fluid

Dark, burnt-smelling transmission fluid is one of the most reliable indicators of a transmission that's been running hot or hasn't been serviced on schedule. This doesn't always mean a rebuild is needed — sometimes a fluid exchange at the right time prevents further damage.

Check Engine or Transmission Warning Light

Transmission-related fault codes — shift solenoids, pressure sensors, temperature sensors, torque converter codes — are common and range from minor to serious. We read every module, not just basic engine codes, so transmission problems don't hide behind a deferred scan.

Manual Transmission Hard to Get Into Gear

A manual that's difficult to get into first, or that won't stay in gear without holding the lever, or that grinds on downshifts, needs diagnosis. These symptoms progress — they don't go away.

Step 1 — Full Diagnostic Scan and Test Drive

We start with a complete scan of the transmission control module and a test drive to document shift quality, engagement, noise, and any drivability symptoms firsthand. We never recommend repairs based on symptoms alone — we verify what the vehicle is actually doing.

Step 2 — Fluid Analysis and Visual Inspection

Transmission fluid condition tells a story. We check color, smell, consistency, and contamination — and inspect the transmission pan, filter, and lines for leaks. Metal particles in the pan are a sign of mechanical wear that changes the repair recommendation.

Step 3 — Written Estimate Before Any Work

You receive a clear written estimate itemizing every recommended repair, the parts involved, and the labor. We explain our findings in plain language and present options where they exist — including the honest conversation about when repair makes more sense than replacement, and vice versa.

Step 4 — Quality Repair With Correct Fluids and Parts

We use the correct manufacturer-specified transmission fluid — not a universal ATF that may not be chemically compatible with your transmission's clutch materials and seals. Parts are OEM or OEM-equivalent, and we don't cut corners on a system this expensive.

Step 5 — Post-Repair Road Test and Verification

After any transmission repair, we road test the vehicle under the same conditions that produced the original symptom. If the repair involved fluid, we verify correct level and condition after the test. You don't leave until we've confirmed the fix.

ASE Master Certified Technicians

Transmission work is where the gap between a generalist and a certified specialist shows most clearly. Action Automotive's ASE Certified and Master Certified technicians have the training, tooling, and experience to diagnose and repair transmission problems correctly — not through parts substitution and guesswork.

Dealer-Level Diagnostics, All Makes and Models

Our factory-grade diagnostic equipment accesses transmission-specific data on European, Japanese, Korean, and domestic vehicles. This matters on modern vehicles where transmission behavior is heavily software-controlled — the difference between a software-based fix and an unnecessary rebuild can come down to what your scan tool can access.

Honest Recommendations

Transmission jobs can be expensive, and some shops use that to their advantage. We tell customers what they actually need — including when a simple fluid service is the right first step, and when it isn't. Our reputation in Eugene since 1994 is built on exactly this kind of straight talk.

24-Month / 24,000-Mile Warranty

Every transmission repair at Action Automotive is backed by our 24-month/24,000-mile warranty. That's genuine coverage on a system where quality of repair matters more than almost anywhere else on the vehicle.



Complimentary Uber Service

Transmission repairs often take more than a day. We'll cover your Uber home and back so the repair doesn't disrupt your schedule.