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BOOMMAR / ON / St. Thomas / Transmission

Transmission Shops in St. Thomas, ON

Find trusted transmission services in St. Thomas. Compare prices, read verified reviews, and request free quotes.

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TruMechanic Truck Services Ltd - Transmission in St. Thomas
St. Thomas, ON
TR

TruMechanic Truck Services Ltd

66 Progress Dr, St Thomas, ON N5P 4G5, Canada, St. Thomas
★ 5.0
60 reviews
20 auto services • Free quotes available
Transmission Auto AC & HeatingAuto Cooling SystemAuto Electrical
📞 (647) 674-1777 • St. Thomas
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Gurr Auto - Transmission in St. Thomas
St. Thomas, ON
GU

Gurr Auto

845 Talbot St, St Thomas, ON N5P 1E5, Canada, St. Thomas
★ 4.8
315 reviews
19 auto services • Free quotes available
Transmission Auto AC & HeatingAuto Cooling SystemAuto Electrical
📞 (519) 637-9861 • St. Thomas
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The Auto Guys - Transmission in St. Thomas
St. Thomas, ON
TH

The Auto Guys

135 S Edgeware Rd, St Thomas, ON N5P 4C4, Canada, St. Thomas
★ 4.6
193 reviews
18 auto services • Free quotes available
Transmission Auto AC & HeatingAuto Cooling SystemAuto Electrical
📞 (519) 631-7117 • St. Thomas
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Mister Transmission - Transmission in St. Thomas
St. Thomas, ON
MI

Mister Transmission

261 Talbot St, St Thomas, ON N5P 1B3, Canada, St. Thomas
★ 4.6
144 reviews
1 auto services • Free quotes available
Transmission
📞 (519) 633-2800 • St. Thomas
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Jim's Finish Line Auto Trans - Transmission in St. Thomas
St. Thomas, ON
JI

Jim's Finish Line Auto Trans

200 Ross St, St Thomas, ON N5R 3Y3, Canada, St. Thomas
★ 4.1
37 reviews
1 auto services • Free quotes available
Transmission
📞 (519) 207-6060 • St. Thomas
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Automatics Only - Transmission in St. Thomas
St. Thomas, ON
AU

Automatics Only

280 Edward St unit 14, St Thomas, ON N5P 1Y1, Canada, St. Thomas
★ 3.4
77 reviews
1 auto services • Free quotes available
Transmission
📞 (519) 702-3337 • St. Thomas
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St. Thomas, ON Cost Guide

Estimated Transmission Pricing

Transmission Fluid & Filter $180 - $340
Clutch Kit Replacement $1,100 - $1,950
Solenoid / Valve Body Repair $450 - $980
Full Transmission Rebuild $2,800 - $4,800

*Typical St. Thomas independent shop ranges (CAD before tax). Exact price depends on vehicle year, make, and model.

Everyday Signs to Watch For
  • • Engine revs rise between shifts without matching acceleration (transmission slipping)
  • • Delayed engagement when shifting from Park into Drive or Reverse
  • • Harsh clunking, bucking, or shuddering during gear changes
Driver Tip: Call 2 to 3 listed St. Thomas shops on this page directly with your vehicle year, make, and model to compare exact quotes.
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St. Thomas customer feedback

Customer Reviews for Transmission in St. Thomas

Verified Reviews for Transmission
★ ★ ★ ★ ★

“Pleasant staff. Quick at getting the work done. Prices are good.”

cheryl Rinquinha • Transmission at Jim's Finish Line Auto Trans, St. Thomas
★ ★ ★ ★ ★

“Excellent service. Very courteous and friendly. Honest people to deal.with”

Judy Huntington • Transmission at Jim's Finish Line Auto Trans, St. Thomas
★ ★ ★ ★ ★

“Great guys very knowledgeable!”

Ryan Penner • Transmission at Automatics Only, St. Thomas
★ ★ ★ ★ ★

“Great guy. Very knowledgeable and helpful. Very helpful shop”

joshua claus • Transmission at Automatics Only, St. Thomas

Top Transmission Shops in St. Thomas, ON

Boommar lists 6 verified transmission shops in St. Thomas, Ontario, with an average rating of 4.4 / 5.0 across 826 customer reviews. Compare Verified partner shops and top-rated local garages below:

Shop Name Rating / Status
TruMechanic Truck Services Ltd ★ 5.0 (60)
Gurr Auto ★ 4.8 (315)
The Auto Guys ★ 4.6 (193)
Mister Transmission ★ 4.6 (144)
Jim's Finish Line Auto Trans ★ 4.1 (37)

Auto Transmission Repair Mechanics in St. Thomas, ON

Smooth gear shifts and clean transmission fluid keep your drivetrain reliable for hundreds of thousands of kilometres. Compare transmission repair shops in St. Thomas, ON for automatic, CVT, dual-clutch, and manual transmission diagnostics, fluid service, clutch replacements, and rebuilds.

Browse 6 verified transmission shops in St. Thomas, ON above to compare ratings, check offered services, and request a direct quote.

Common Causes of Transmission Problems

Degraded, overheated, or low automatic transmission fluid (ATF)
Heavy towing or stop-and-go traffic overheating the torque converter and clutches
Failing shift solenoids, pressure sensors, or valve body wear
CVT steel push-belt or pulley wear from skipped CVT fluid changes
Worn manual clutch disc, pressure plate, dual-mass flywheel, or slave cylinder
Corroded transmission cooler lines leaking fluid onto the ground

Warning Signs of Transmission Trouble

Engine revs rise between shifts without matching acceleration (transmission slipping)
Delayed engagement when shifting from Park into Drive or Reverse
Harsh clunking, bucking, or shuddering during gear changes
Whining, humming, or grinding noises that change with vehicle speed
Red or brownish transmission fluid spots under the front or middle of the vehicle
Burnt smell from the dipstick or a flashing transmission / wrench warning light

Transmission Services Available in St. Thomas

Transmission Fluid & Filter Service

Drain-and-fill or fluid exchange using OEM-spec ATF or CVT fluid

Electronic Transmission Diagnostics

Scanning TCM fault codes, line pressure testing, and road-test data logging

Valve Body & Solenoid Repair

Replacing faulty shift solenoids, conductor plates, and valve bodies without removing the transmission

Manual Clutch & Flywheel Replacement

Replacing clutch kit, release bearing, flywheel, and hydraulic master/slave cylinders

Torque Converter & Cooler Line Repair

Fixing torque converter shudder and replacing rusted steel cooler lines

Complete Transmission Rebuild or Replacement

Full teardown and rebuild with upgraded internals or remanufactured unit installation

Transmission Tips for St. Thomas Drivers

Change automatic and CVT transmission fluid every 60,000 to 90,000 km, even if the manufacturer calls it "lifetime" fluid
Always use the exact OEM fluid specification (such as WS, DW-1, Mercon ULV, or CVT-specific fluid)
Come to a complete stop before shifting between Reverse and Drive
Inspect transmission cooler lines for rust during winter oil changes, as a burst cooler line can ruin a transmission in minutes
Have a transmission specialist scan fault codes first; many harsh-shift issues are caused by a $300 solenoid rather than a full rebuild

Frequently Asked Questions

How much does transmission repair or rebuild cost in St. Thomas? +
In St. Thomas, a transmission fluid and filter service costs $180 to $350, and solenoid or cooler line repairs run $350 to $900. A manual clutch replacement typically costs $1,200 to $2,400, while a full automatic or CVT rebuild/replacement ranges from $2,800 to $5,500+.
Is "lifetime" transmission fluid really lifetime? +
In practice, "lifetime" usually means the length of the factory powertrain warranty (around 100,000 km). Draining and refilling transmission fluid every 60,000 to 90,000 km removes clutch wear material and significantly extends transmission life.
Can a transmission problem be fixed without a full rebuild? +
Often, yes. Delayed shifting, limp mode, or flares between specific gears are frequently caused by low fluid from a leaking cooler line, a failed shift solenoid, a speed sensor, or a worn valve body that can be serviced with the transmission still in the car.
How long does a transmission rebuild take? +
A full transmission removal, teardown, rebuild, reinstallation, and road test typically takes 3 to 5 business days depending on parts availability.

Transmission in Nearby Cities

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