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Engine Repair Shops in Thetford Mines, QC

Find trusted engine repair services in Thetford Mines. Compare prices, read reviews, and book online.

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Garage Karl Gauthier
Thetford Mines • ≈ 10 km
GA
Garage Karl Gauthier
1124 Rue Gosselin, Thetford Mines, QC G6G 7S9, Canada, Thetford Mines
★ 5.0
3 Google reviews
Response ≈ 26 min • $$$ • Quotes free
Engine Repair Auto ElectricalSuspension & Steering
📞 (418) 341-0660 • Free quote • Verified
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Lab-Auto
Thetford Mines • ≈ 5 km
LA
Lab-Auto
1954 Rue Notre Dame E, Thetford Mines, QC G6G 2W2, Canada, Thetford Mines
★ 5.0
7 Google reviews
Response ≈ 40 min • $$ • Quotes free
Engine Repair Auto DetailingAuto Body & Paint
📞 (581) 399-4689 • Free quote • Verified
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Mécanique E.G. inc
Thetford Mines • ≈ 8 km
M
Mécanique E.G. inc
Rue Daigle, Thetford Mines, QC G6G 7W6, Canada, Thetford Mines
★ 5.0
2 Google reviews
Response ≈ 45 min • $$$ • Quotes free
Engine Repair Brake ServicesTransmission
📞 (418) 946-1332 • Free quote • Verified
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Atelier Mécanique
Thetford Mines • ≈ 6 km
AT
Atelier Mécanique
121 Rue Pie XI, Thetford Mines, QC G6G 2P3, Canada, Thetford Mines
★ 4.8
28 Google reviews
Response ≈ 59 min • $$ • Quotes free
Engine Repair Oil Change & LubeBrake Services
📞 (418) 335-3636 • Free quote • Verified
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Garage Beaudoin Stephane
Thetford Mines • ≈ 7 km
GA
Garage Beaudoin Stephane
766 Bd Frontenac O, Thetford Mines, QC G6G 6K3, Canada, Thetford Mines
★ 4.8
85 Google reviews
Response ≈ 49 min • $ • Quotes free
Engine Repair Oil Change & LubeBrake Services
📞 (418) 338-6292 • Free quote • Verified
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GARAGE GRENIER PIÈCES ET SERVICE
Thetford Mines • ≈ 7 km
GA
GARAGE GRENIER PIÈCES ET SERVICE
3520 Bd Frontenac O, Thetford Mines, QC G6H 2B8, Canada, Thetford Mines
★ 4.8
105 Google reviews
Response ≈ 42 min • $$ • Quotes free
Engine Repair Oil Change & LubeBrake Services
📞 (418) 423-2505 • Free quote • Verified
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Garage Daniel Poulin
Thetford Mines • ≈ 3 km
GA
Garage Daniel Poulin
190 Rue Jalbert O, Thetford Mines, QC G6G 7Y7, Canada, Thetford Mines
★ 4.7
66 Google reviews
Response ≈ 33 min • $$ • Quotes free
Engine Repair Oil Change & LubeTransmission
📞 (418) 338-6088 • Free quote • Verified
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Parts City Pièces d'Auto à Thetford Mines
Thetford Mines • ≈ 7 km
PA
Parts City Pièces d'Auto à Thetford Mines
917 Bd Frontenac O, Thetford Mines, QC G6G 6K5, Canada, Thetford Mines
★ 4.6
32 Google reviews
Response ≈ 50 min • $$$ • Quotes free
Engine Repair Brake ServicesExhaust System
📞 (418) 755-1201 • Free quote • Verified
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Atelier Mécatech
Thetford Mines • ≈ 10 km
AT
Atelier Mécatech
1369 Bd Frontenac O, Thetford Mines, QC G6H 2C6, Canada, Thetford Mines
★ 4.4
18 Google reviews
Response ≈ 30 min • $ • Quotes free
Engine Repair Brake ServicesTires & Wheels
📞 (418) 755-0548 • Free quote • Verified
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Pneus freins 112
Thetford Mines • ≈ 9 km
PN
Pneus freins 112
1699 Bd Frontenac E, Thetford Mines, QC G6G 6P6, Canada, Thetford Mines
★ 4.2
53 Google reviews
Response ≈ 22 min • $ • Quotes free
Engine Repair Oil Change & LubeBrake Services
📞 (418) 338-8844 • Free quote • Verified
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Thetford Mines customer reviews

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Verified Reviews for Engine Repair
★★★★★

“Booked at lunch. Quote came back in 34 minutes with a real breakdown, not a guess. Dropped off the Civic, got SMS updates, picked it up same day. Zero phone tag.”

Jordan B. • Engine Repair at Garage Karl Gauthier, Thetford Mines
★★★★★

“Finally a Thetford Mines shop that actually does diagnostics properly. Boommar showed verified reviews only — made the decision easy.”

Amelia S. • Diagnostics at Lab-Auto
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Find a Best Engine Repair in Thetford Mines, QC

Boommar lists 10 verified mechanics in Thetford Mines. Compare real reviews, response times, pricing bands, and open bays — then book online.

Common Causes of Auto Engine Problems

Neglected oil changes causing internal sludge buildup and bearing wear
Overheating due to coolant leaks, failed thermostats, or water pump failure
Worn or fouled spark plugs causing misfires and poor combustion
Timing belt or chain failure leading to catastrophic valve damage
Carbon buildup on intake valves reducing airflow and performance
Failing head gaskets allowing coolant and oil to mix internally

Critical Signs Your Auto Engine Needs Repair

Check Engine light is on or flashing on the dashboard
Engine is knocking, pinging, or making metallic rattling sounds
Significant loss of power during acceleration or climbing hills
Excessive white, blue, or black smoke from the exhaust tailpipe
Visible oil or coolant leaks pooling under the vehicle
Engine is overheating or the temperature gauge reads in the red zone

Engine Repair Services Available

Engine Diagnostics

OBD-II scanning and advanced live data analysis

Engine Tune-Up

Spark plugs, ignition coils, filters, and sensor replacements

Head Gasket Replacement

Resealing the engine block to cylinder head joint

Timing Belt/Chain Service

Preventive replacement before catastrophic failure

Engine Rebuild

Complete disassembly, machining, and reassembly with new internals

Engine Replacement

Installing a remanufactured or used replacement engine

Engine Repair Tips

Never ignore a flashing Check Engine light—it indicates active damage to the catalytic converter or engine internals
Follow the manufacturer's timing belt replacement interval exactly (usually 100,000 to 160,000 km)
Use the correct grade of engine oil specified in your owner's manual
Monitor your temperature gauge regularly, especially in heavy summer traffic
Address small oil leaks before they become major engine failures
Get a compression test done if your engine has over 200,000 km to assess internal wear

Frequently Asked Questions

How much does engine repair cost in Thetford Mines? +
Minor repairs like spark plugs or sensors cost $150-$500. Head gasket replacement runs $1,500-$3,000. A complete engine rebuild costs $3,000-$6,000+, while a replacement engine with installation ranges from $4,000-$8,000+.
Is it worth rebuilding an engine vs. replacing it? +
If the block and heads are in good condition, a rebuild is often more cost-effective and can result in a like-new engine. If there's severe damage (cracked block, spun bearings), a remanufactured replacement may be more practical.
How long does an engine rebuild take? +
A complete engine rebuild typically takes 2 to 4 weeks, depending on parts availability, machining requirements, and the shop's workload.
What causes a head gasket to fail? +
The most common cause is engine overheating. When the engine exceeds its designed temperature, the head gasket material warps and fails, allowing coolant and oil to mix or leak externally.

Engine Repair in Nearby Cities

Montreal Quebec City Laval Gatineau Longueuil Sherbrooke Lévis Saguenay

Other Services in Thetford Mines

Auto Mechanic Diesel Truck Mechanic Truck Mechanic Oil Change & Lube Brake Services Tires & Wheels Auto Detailing Auto Body & Paint

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