Engine Repair Shops in St. John's, NL

Find trusted engine repair services in St. John's. Compare prices, read reviews, and book online.

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Mobile Maintenance
St. John's • ≈ 2 km
MO
14 reddy drive torbay, St. John's, NL A1K 1B6, Canada, St. John's
★ 5.0
13 Google reviews
Response ≈ 53 min $$$ • Quotes free
Engine Repair Auto ElectricalTruck Mechanic
📞 (709) 725-7600 Free quote • Verified
Eastern Fine Motors
St. John's • ≈ 6 km
EA
71 O'Leary Ave Unit 5, St. John's, NL A1B 2C9, Canada, St. John's
★ 4.9
321 Google reviews
Response ≈ 55 min $$$ • Quotes free
Engine Repair Brake ServicesTransmission
📞 (709) 219-9070 Free quote • Verified
King's Bridge Service Station
St. John's • ≈ 5 km
KI
69 Kings Bridge Rd, St. John's, NL A1A 1H7, Canada, St. John's
★ 4.7
87 Google reviews
Response ≈ 48 min $$$ • Quotes free
Engine Repair Oil Change & LubeBrake Services
📞 (709) 726-3247 Free quote • Verified
Pender Auto Service
St. John's • ≈ 10 km
PE
17 King's Rd, St. John's, NL A1C 3P1, Canada, St. John's
★ 4.7
19 Google reviews
Response ≈ 46 min $ • Quotes free
Engine Repair Auto Cooling SystemEuropean & Speciality Cars
📞 (709) 753-0183 Free quote • Verified
C & C Automotive Inc
St. John's • ≈ 5 km
C
99 Merrymeeting Rd, St. John's, NL A1C 2W2, Canada, St. John's
★ 4.5
64 Google reviews
Response ≈ 46 min $$ • Quotes free
Engine Repair Auto ElectricalAuto AC & Heating
📞 (709) 579-6100 Free quote • Verified
Constantine’s Engine & Performance
St. John's • ≈ 2 km
CO
22 Goldstone St, St. John's, NL A1B 5A8, Canada, St. John's
★ 4.4
34 Google reviews
Response ≈ 35 min $$ • Quotes free
Engine Repair Auto AC & HeatingExhaust System
📞 (709) 753-9145 Free quote • Verified
Major's Path Automotive
St. John's • ≈ 2 km
MA
59 Major's Path, St. John's, NL A1A 4Z9, Canada, St. John's
★ 4.4
100 Google reviews
Response ≈ 60 min $$$ • Quotes free
Engine Repair Brake ServicesAuto Electrical
📞 (709) 722-6888 Free quote • Verified
A+ Plus Auto Center
St. John's • ≈ 7 km
A+
77 Major's Path, St. John's, NL A1A 4Z9, Canada, St. John's
★ 4.3
174 Google reviews
Response ≈ 53 min $ • Quotes free
Engine Repair TransmissionAuto Electrical
📞 (709) 722-1315 Free quote • Verified
JC Auto Lab
St. John's • ≈ 6 km
JC
36 Pippy Pl, St. John's, NL A1B 3X4, Canada, St. John's
★ 4.3
6 Google reviews
Response ≈ 43 min $ • Quotes free
Engine Repair Oil Change & LubeBrake Services
📞 (709) 738-8667 Free quote • Verified
Turbo Tech Auto
St. John's • ≈ 10 km
TU
219 Major's Path, St. John's, NL A1A 5A1, Canada, St. John's
★ 4.3
92 Google reviews
Response ≈ 41 min $ • Quotes free
Engine Repair Brake ServicesTransmission
📞 (709) 726-6222 Free quote • Verified
CarFix Automotive
St. John's • ≈ 7 km
CA
651 Topsail Rd, St. John's, NL A1E 2C9, Canada, St. John's
★ 4.0
29 Google reviews
Response ≈ 54 min $$ • Quotes free
Engine Repair Brake ServicesTransmission
📞 (709) 745-4200 Free quote • Verified
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St. John's 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 Mobile Maintenance, St. John's
★★★★★

“Finally a St. John's shop that actually does diagnostics properly. Boommar showed verified reviews only — made the decision easy.”

Amelia S. • Diagnostics at Eastern Fine Motors
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Find a Best Engine Repair in St. John's, NL

Boommar lists 11 verified mechanics in St. John's. 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 St. John's? +
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.