CHEVROLET, GMC, BUICK & CADILLAC REPAIR & SERVICE — Toronto, Etobicoke & GTA

Chevrolet, GMC, Buick & Cadillac Repair & Service

Independent Chevrolet, GMC, Buick & Cadillac repair and maintenance: dealer-level diagnostics, the factory maintenance schedule and parts that meet GM specifications.

321 Rexdale Blvd #4, Etobicoke, ON M9W 1R8

Mon–Fri 8am–5pm · (416) 742-4521

Book
Since 1999
Dealer-Level Diagnostics
Factory Maintenance Schedules
Loaner Vehicles Available

⚡ Servicing your car at an independent shop does not void your vehicle warranty — protected under Canadian consumer protection law.

By the Radman Auto Repair team, independent auto repair in Etobicoke since 1999 · Updated October 2026

GM trucks and SUVs are everywhere in the GTA, and they share engines, transmissions and known weak points across Chevrolet, GMC, Buick and Cadillac. We service them with ACDelco-quality parts and GM-spec fluids.

Quick answer: Radman Auto Repair diagnoses and repairs GM vehicles in Etobicoke with dealer-level scan tools, follows the factory maintenance schedule and uses parts and fluids that meet GM specifications. Servicing here does not affect your warranty.

At a glance

  • Models we see: Silverado, Sierra, Equinox, Terrain, Malibu, Cruze, Tahoe, Yukon, Enclave, Encore, Escalade
  • Diagnostics: dealer-level scan tools and factory service information
  • Parts & fluids: OEM or OEM-equivalent, to GM specification
  • Warranty: independent service keeps your new-car warranty intact
  • Book: call (416) 742-4521 or book online

Common GM Problems

V8 lifter failures some 5.3 L and 6.2 L V8s with cylinder deactivation (AFM/DFM) develop collapsed lifters, causing ticking and misfires.

2.4 L oil consumption some 2010–2017 Equinox, Terrain and Malibu 2.4 L engines burn oil because of piston ring design.

8-speed shudder a torque converter shudder on some 8-speed automatics is usually fixed with a fluid flush to an updated fluid.

Coolant leaks the 1.4 L turbo in the Cruze, Trax and Encore leaks from the water outlet and pump.

Brake line rust trucks driven through Ontario winters rust brake lines. See rust damage.

No heat heater core and blend door problems. See no heat in your Chevrolet.

GM Maintenance Notes

  • Follow the Oil Life Monitor and use dexos-approved oil.
  • Use DEX-COOL coolant; mixing types causes sludge.
  • Service 6- and 8-speed automatics with the current GM fluid specification.
  • Inspect brake and fuel lines yearly on trucks and SUVs.

More on GM: ACDelco parts, no heat, Chevrolet history. Under warranty? See servicing a car under warranty.

Frequently Asked Questions

Do you service Chevrolet, GMC, Buick and Cadillac?

Yes, all four GM brands, from Silverado and Sierra trucks to Equinox, Enclave and Escalade.

What causes the tick in my Silverado V8?

On many 5.3 L and 6.2 L engines with cylinder deactivation, a ticking noise with misfires can be a collapsed lifter. Diagnose it early, before it damages the camshaft.

Why does my GM truck shudder at highway speed?

On some 8-speed automatics, a torque converter shudder is fixed with a fluid flush using GM’s updated fluid. We confirm the cause first.

Do you use ACDelco parts?

We use ACDelco or equivalent quality parts. See our page on ACDelco parts.

Will having the work done at an independent shop affect my warranty?

No. Using an independent shop for maintenance and repairs does not void your new-vehicle warranty. Keep your invoices; we document the parts and work on every job.

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4.8
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Alex Joseph profile picture
Alex Joseph
11:02 10 Oct 26
Alex is a great guy. He took the time to respond by phone and walk me through my options for my Tesla Model Y 2024 and gave me his perspectives as a Tesla owner. Top recommendation in my books for the Toronto area.
France T profile picture
France T
20:58 31 Aug 26
I cannot say enough good things about Livio and the team at Radman Auto Repair in Rexdale. We brought in my son’s 2015 Mitsubishi Lancer because the A/C was malfunctioning. We had already been to two other shops, paid for diagnostics, and received different explanations, so we were frustrated and unsure what to do next. Livio was outstanding. He listened carefully, looked at the issue, and explained everything clearly and in detail in a way that actually made sense. He was able to narrow down what was going on within minutes, without guessing, pressure, or recommending unnecessary work. What really stood out was that he did not charge us another diagnostic fee after learning we had already paid for two separate diagnoses. Even better, the work was completed the same day, which was a huge relief. It is rare to find a mechanic who is knowledgeable, honest, patient, efficient, and genuinely focused on helping customers understand the real issue before they spend money on repairs. Livio truly gets it. We are so happy we found Radman Auto Repair and would highly recommend Livio and his team to anyone looking for trustworthy, skilled, and customer-focused service..
Roney Zachariah profile picture
Roney Zachariah
04:42 10 Aug 26
My 2015 Honda CR-V was blowing hot air and making noise when the A/C was on. The Compressor and Expansion valve needed replacement due to metal debris in the system. I rarely write reviews, but I felt it would be wrong not to appreciate Radman for their service, especially after what I went through before finding them. I’m writing this one month after the repair because I wanted to test my A/C on multiple long trips before recommending them. One thing I learned from this experience is that many mechanics know how to replace parts, but very *few follow the right procedures* and perform the proper checks. I initially went for a cheaper repair at a local mechanic. The problem came back, and afterward he didn’t seem to know what to do next. I found Radman through Google reviews without any personal recommendation, so I was taking a chance. They properly diagnosed the issue, explained everything clearly before starting the work, didn’t exaggerate the problem, and charged me a reasonable price. A/C issues can be complicated but they answered all my questions and I honestly haven’t had such a good and detailed conversation with a mechanic in the GTA about an A/C problem. Their knowledge and experience with A/C systems really stood out. I also had a catalytic converter issue. Another mechanic simply recommended replacing it, which would have cost at least $2,000. Radman explained that considering the age and condition of my 2015 CR-V, such an expensive replacement might not make sense. They gave me the replacement cost but also suggested trying Cataclean first. I tried it, and so far I haven’t had any issues. After a month and several long trips, my A/C is still working well. It’s rare to find this combination of knowledge, transparency, and honesty. Thank you, Radman, for the knowledgeable and honest service. I genuinely appreciate it.
Moklas Salkon profile picture
Moklas Salkon
17:17 23 Jun 26
I fix my cars myself but I always go to Radman for AC work. Been coming here for years and they do great work and are fairly priced. The guys are honest and reliable. Very clean waiting room too!
Alexa De Los Santos profile picture
Alexa De Los Santos
18:30 26 May 26
Finding a mechanic who actually understands EVs and is completely trustworthy is hard to come by, but ⁠Radman Repair is excellent. The service was top-notch, they explained everything to me with so much patience, and the overall experience was a 10/10. 100% recommended!
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Toronto & Etobicoke’s Independent GM Specialists

Radman Auto Repair has serviced GM vehicles for GTA drivers since 1999, with honest diagnosis before any repair.

This Service Includes

✓ Dealer-level scan & diagnosis

✓ Factory maintenance schedule

✓ GM-spec parts & fluids

✓ Detailed invoice for your records