Engine Repair Shops in Oshawa, ON

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

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Triple G Small Engine Repair
Oshawa • ≈ 7 km
TR
574 Balsam Crescent, Oshawa, ON L1J 6A2, Canada, Oshawa
★ 5.0
32 Google reviews
Response ≈ 56 min $$$ • Quotes free
Engine Repair
📞 (905) 728-5002 Free quote • Verified
Master Mechanic Oshawa
Oshawa • ≈ 5 km
MA
274 King St W, Oshawa, ON L1L 2J9, Canada, Oshawa
★ 4.8
703 Google reviews
Response ≈ 24 min $$ • Quotes free
Engine Repair Auto MechanicBrake Services
📞 (905) 576-1360 Free quote • Verified
Vanderheyden's Garage
Oshawa • ≈ 2 km
VA
761 Simcoe St S, Oshawa, ON L1H 4K5, Canada, Oshawa
★ 4.8
227 Google reviews
Response ≈ 15 min $$$ • Quotes free
Engine Repair Auto MechanicEuropean & Speciality Cars
📞 (905) 725-2519 Free quote • Verified
Beatty Brothers Garage
Oshawa • ≈ 8 km
BE
10 Russett Ave Unit 2, Oshawa, ON L1G 3R4, Canada, Oshawa
★ 4.6
59 Google reviews
Response ≈ 15 min $$$ • Quotes free
Engine Repair
📞 (905) 436-8486 Free quote • Verified
Ace's Automotive Inc.
Oshawa • ≈ 10 km
AC
331 Park Rd S, Oshawa, ON L1J 4H6, Canada, Oshawa
★ 4.5
498 Google reviews
Response ≈ 54 min $$ • Quotes free
Engine Repair Auto MechanicBrake Services
📞 (905) 725-7200 Free quote • Verified
Crown Maintenance
Oshawa • ≈ 8 km
CR
1280 Terwillegar Ave Unit #7, Oshawa, ON L1J 7A5, Canada, Oshawa
★ 4.1
181 Google reviews
Response ≈ 59 min $ • Quotes free
Engine Repair
📞 (905) 723-6057 Free quote • Verified
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Verified Reviews for Engine Repair
★ ★ ★ ★ ★

“Donny knows his stuff! He’s a pro at what he does & what he drives! He’s all about NASCAR!”

Jennifer Kerkhoven • Engine Repair at Beatty Brothers Garage, Oshawa
★ ★ ★ ★ ★

“Right from when the phone got picked up I got greeted by a very wonderful person on the other end Pleasant explained my situation and I was set up with the schedule and time for a pickup of my snowblower they came as indicated fairy professional very polite.
Over the phone I was explaining the cost and anything extra very next day I received a phone call saying that my snow blower was ready and it was ready to be delivered we set up a time they arrived he went over things with me started it up had me started it up and all I can say is still running.
Bill was simple and understandable and exactly what I was told over the phone thank you very much”

Eugene Ross • Engine Repair at Triple G Small Engine Repair, Oshawa
★ ★ ★ ★ ★

“Great service”

Darrell Ryan • Engine Repair at Crown Maintenance, Oshawa
★ ★ ★ ★ ★

“New to the area, so trying to find a good, honest, and reasonably priced mechanic. I read the reviews of all shops in the areas, and after a few phone calls, decided to drop in to this Master Mechanic for a safety certificate. They asked if I could drop the car off in the morning, and they would do thier best to squeeze me in between jobs tommorow. They did one better! I dropped off the car in the afternoon on the same day, so they could have it in the morning. To my surprise, they called me a few hours later to tell me what it needed, what impressed me was that since the brakes needed servicing, they suggested that they would clean the rust off and have it ready for certification. Most places would say you need new rotors and pads, usually around the $1,000 mark for a brake job. The car was ready the next day, the total charge was $500, and $220 of that was the safety inspection. I was very impressed and thanked the owner Simran for the great service!! I know i found my new goto place for my cars. You should definatly che k them out.”

Jim terkalas • Engine Repair at Master Mechanic Oshawa, Oshawa
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Find a Best Engine Repair in Oshawa, ON

Boommar lists 6 verified mechanics in Oshawa. 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 Oshawa? +
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.