Engine Repair Shops in Ajax, ON

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

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Ajax Electrical
Ajax • ≈ 9 km
AJ
2-157C Harwood Ave N Suite 511, Ajax, ON L1Z 0B6, Canada, Ajax
★ 5.0
2 Google reviews
Response ≈ 27 min • $$$ • Quotes free
Engine Repair Auto ElectricalAuto Mechanic
📞 (289) 275-6543 • Free quote • Verified
FixItRiteAuto
Ajax • ≈ 2 km
FI
Salem Rd S, Ajax, ON L1S 0H2, Canada, Ajax
★ 5.0
4 Google reviews
Response ≈ 16 min • $$$ • Quotes free
Engine Repair TransmissionAuto Electrical
📞 (647) 767-4843 • Free quote • Verified
Repair It Automotive
Ajax • ≈ 2 km
RE
221 Westney Rd S, Ajax, ON L1S 2C9, Canada, Ajax
★ 5.0
11 Google reviews
Response ≈ 23 min • $ • Quotes free
Engine Repair
📞 (905) 428-2323 • Free quote • Verified
D & J Auto Repair
Ajax • ≈ 2 km
D
289 Hunt St, Ajax, ON L1S 3K9, Canada, Ajax
★ 4.9
72 Google reviews
Response ≈ 42 min • $ • Quotes free
Engine Repair Auto MechanicBrake Services
📞 (905) 683-6371 • Free quote • Verified
North Electrik Inc
Ajax • ≈ 9 km
NO
75 Bayly St W Unit 559 - Room 15, Ajax, ON L1S 7L7, Canada, Ajax
★ 4.9
65 Google reviews
Response ≈ 60 min • $$$ • Quotes free
Engine Repair Auto ElectricalAuto Mechanic
📞 (647) 709-4959 • Free quote • Verified
Master Mechanic Ajax
Ajax • ≈ 8 km
MA
264 Fairall St, Ajax, ON L1S 1R8, Canada, Ajax
★ 4.8
601 Google reviews
Response ≈ 22 min • $$ • Quotes free
Engine Repair Auto MechanicBrake Services
📞 (905) 426-3076 • Free quote • Verified
NAPA AUTOPRO
Ajax • ≈ 5 km
NA
240 Harwood Ave S #6, Ajax, ON L1S 3M2, Canada, Ajax
★ 4.8
129 Google reviews
Response ≈ 19 min • $ • Quotes free
Engine Repair Brake ServicesAuto Mechanic
📞 (905) 619-2392 • Free quote • Verified
Precision Auto Centre
Ajax • ≈ 4 km
PR
230 MacKenzie Ave, Ajax, ON L1S 2E8, Canada, Ajax
★ 4.8
111 Google reviews
Response ≈ 15 min • $$$ • Quotes free
Engine Repair Auto MechanicBrake Services
📞 (905) 683-9699 • Free quote • Verified
Precision Motorsport
Ajax • ≈ 4 km
PR
711 Finley Ave Unit 3, Ajax, ON L1S 3T1, Canada, Ajax
★ 4.7
259 Google reviews
Response ≈ 40 min • $$ • Quotes free
Engine Repair Suspension & SteeringVehicle Inspection
📞 (416) 471-4805 • Free quote • Verified
Ajax Automotive Services
Ajax • ≈ 3 km
AJ
220 Bayly St E, Ajax, ON L1S 7S9, Canada, Ajax
★ 4.6
247 Google reviews
Response ≈ 60 min • $$$ • Quotes free
Engine Repair Auto MechanicBrake Services
📞 (905) 683-0650 • Free quote • Verified
Henry Desjardins Automotive
Ajax • ≈ 10 km
HE
377 MacKenzie Ave, Ajax, ON L1S 2G2, Canada, Ajax
★ 4.6
97 Google reviews
Response ≈ 53 min • $$ • Quotes free
Engine Repair Suspension & SteeringAuto Mechanic
📞 (905) 683-9040 • Free quote • Verified
Stance Factory
Ajax • ≈ 2 km
ST
695 Finley Ave Unit 2, Ajax, ON L1S 3T1, Canada, Ajax
★ 4.6
71 Google reviews
Response ≈ 21 min • $ • Quotes free
Engine Repair Suspension & SteeringAuto Mechanic
📞 (647) 889-9554 • Free quote • Verified
Active Green+Ross Tire & Automotive Centre
Ajax • ≈ 9 km
AC
1 Westney Rd N, Ajax, ON L1T 1P4, Canada, Ajax
★ 4.5
560 Google reviews
Response ≈ 35 min • $$$ • Quotes free
Engine Repair Brake ServicesTires & Wheels
📞 (289) 512-2434 • Free quote • Verified
Rebound Sales & Service Ltd
Ajax • ≈ 6 km
RE
200 Fuller Rd, Ajax, ON L1S 7G9, Canada, Ajax
★ 4.5
47 Google reviews
Response ≈ 38 min • $$$ • Quotes free
Engine Repair Suspension & SteeringAuto Mechanic
📞 (905) 428-9226 • Free quote • Verified
MrExecutive Automotive
Ajax • ≈ 2 km
MR
30 Harwood Ave S, Ajax, ON L1S 2B7, Canada, Ajax
★ 4.3
207 Google reviews
Response ≈ 46 min • $ • Quotes free
Engine Repair Suspension & SteeringAuto Mechanic
📞 (905) 239-4004 • Free quote • Verified
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STEP 03
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Ajax customer reviews

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Verified Reviews for Engine Repair
★ ★ ★ ★ ★

“Honest guy, Neil - online systems had problems ordering brakes for a 2019 Yaris due to different models in Canada (french-built and mexican built Mazda 2 based model) and parts are backordered at Toyota - he put the original brakes back together and refilled fluid all at NO CHARGE - very impressed with his ethics and honesty - will return”

The Grim Corsair • Engine Repair at Precision Auto Centre, Ajax
★ ★ ★ ★ ★

“Highly highly recommended, It's so easy to find a smart mechanic, but it's hard to find an HONEST smart mechanic , I was lucky ,I just walked into to this shop ,I received an amazing service, Top quality work ,Good prices and fast (front&rear brakes,rear caliber, sway par linkage and replace tires ) all in 3 Hrs.”

George • Engine Repair at Repair It Automotive, Ajax
★ ★ ★ ★ ★

“I found North Electric through Home Depot Pro recommendations. Mike called me quickly and we chatted about the project first so he knew what to bring. He and his co-worker, Ivan arrived on time and they quickly got to work. Their work was clean and efficient. Mike is a super easy going guy. Saved me a bunch of money with his honesty. Told me what I actually needed and didn’t need. Project was performed up to code. Very clean work. Ivan also cleaned up afterwords and left the house clean. Price was what I had expected based on the job. Will hire them again.”

J S • Engine Repair at North Electrik Inc, Ajax
★ ★ ★ ★ ★

“This is the only shop in the town that do NOT upsell stuff to you and squeeze you for unnecessary stuff. What I liked is they are honest, offer reasonable price and explains everything to you. If you want to rely on a auto shop blindfoldedly I would recommend them. Ofcourse I became permanent customer.”

Supratim Bose • Engine Repair at Precision Auto Centre, Ajax
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Find a Best Engine Repair in Ajax, ON

Don't leave your Engine Repair to chance. Browse 16 trusted mechanics in Ajax, read authentic customer reviews, and find the right shop for your vehicle today.

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 Ajax? +
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.