Honest engine, hybrid and diesel repair on Convoy St.
Precision Motor Werx at 4191 Convoy St B handles engine repair, rebuilds and swaps, transmission service, A/C including hybrid A/C, diagnostics, diesel and truck work, hybrid repair and fast oil changes. Shuttle service keeps your day moving.
Engines, diesels, hybrids — and everything between.
From full engine rebuilds and swaps to diesel fuel systems, hybrid A/C and quick oil changes, every job starts with clear photos and a straight explanation.
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Engine Repair & Rebuilds
Complete engine repair and rebuilds, from cylinder heads to full teardowns, done right the first time.
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Engine Swaps
Engine replacement and swaps for cars, trucks and vans, installed and tuned in our Convoy St shop.
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Diesel & Truck Service
Diesel engine and fuel system work, including FASS Diesel Fuel Systems, for trucks and vans.
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Oil Changes
Fast oil changes with Kendall GT-1 motor oils, plus a careful once-over of your vehicle while it’s in the bay.
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A/C Repair (incl. Hybrid A/C)
A/C diagnosis and repair, including compressors, condensers, lines and refrigerant service, with full hybrid A/C and battery-cooling system work.
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Hybrid Vehicle Repair
Hybrid repair for vehicles like the Chevy Volt and BMW ActiveHybrid, handled by mechanics who know high-voltage systems.
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Transmission Service
Transmission service and repair to keep your vehicle shifting smoothly.
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Engine Diagnostics
Thorough diagnostics with detailed photos and a clear explanation of what your vehicle needs.
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Steering & Suspension
Steering and suspension repair for a smooth, safe, controlled ride.
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TPMS Service
Tire pressure monitoring sensor diagnosis and replacement.
Detailed photos. A straight answer.
We take detailed photos, walk you through what we find and fix it right — whether it’s a daily driver, a work van, a diesel truck or a hybrid.
- Engine repair, rebuilds and swaps
- Transmission service and repair
- A/C repair, including hybrid A/C and battery cooling
- Diesel and fuel system work, including FASS
- Hybrid repair, such as Chevy Volt and BMW ActiveHybrid
An independent Kearny Mesa shop for engine, hybrid and diesel work.
Suite B in the Convoy Center.
Precision Motor Werx is an independent auto repair shop at 4191 Convoy St B in San Diego’s Kearny Mesa, in the Convoy Center. We handle engine repair, rebuilds and swaps, transmission service, A/C repair including hybrid A/C, diagnostics, steering and suspension, TPMS sensors, diesel and truck work, and hybrid repair, plus fast oil changes.
Open Monday–Friday 8:00 AM–5:00 PM and Saturday 9:00 AM–3:00 PM; closed Sunday. Call (858) 999-9379.
- Shuttle service
- Wheelchair-accessible entrance and parking
- Credit and debit cards accepted
- Saturday hours
13 reviews. 4.4 stars.
“Exceptional Service and Honesty! I can’t say enough good things about this shop. They offer a convenient shuttle service and are incredibly honest and professional. They took detailed pictures and thoroughly explained the issues with my vehicle. Unlike another shop I visited, which claimed to have fixed the problem but didn’t, these guys truly delivered. Finding an honest mechanic is tough, but Don and Roy exceeded my expectations. My BMW hybrid is running beautifully now, and I am extremely grateful. Thank you, guys!”
“You cannot say enough when you find a good, honest mechanic. And that's exactly what you get from Roy at Precision Motor Werx. Roy is very knowledgeable, does excellent work, and unlike many other auto mechanics out there, does not charge an arm and a leg! When you meet him, you can tell right away that not only does Roy know cars, inside and out, but that he also enjoys what he does. It was a very good friend of mine that recommended Roy a while back when my car broke down, and my car has benefitted from it ever since.”
“Amazing shop willing that will go the extra mile. They are great for engine work, transmission and oil. They went the extra steps and beyond to help with my Van. Highly recommend very personal and tight professional crew that makes sure to pay attention to detail.”
“Roy has always done an amazing job in my cars. Excellent service and a fair price!”
“Roy is more than fair and honest. Treats you well and great customer service. Highly recommended.”
“they have excellent service the guys there were right on changing my oil . they went over my car with care, and pointed out things that looked wrong , they were fast and efficient. thanks guys”
Hours & directions
Address
4191 Convoy St BSan Diego, CA 92111
Suite B in the Convoy Center, Kearny Mesa. Get directions · Google Maps
Hours
| Monday – Friday | 8:00 AM – 5:00 PM |
| Saturday | 9:00 AM – 3:00 PM |
| Sunday | Closed |
Proudly serving Kearny Mesa · San Diego