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Claim This BusinessRNJ Automotive Repair has served Marietta drivers from a small, owner-operated shop since operations began. The business holds a 4.9-star rating across 69 verified customer reviews, reflecting years of consistent, quality work. Rick, the lead technician, personally handles diagnostics and explains each repair in plain language, welcoming questions from customers who may not have automotive expertise. The shop welcomes all vehicle makes and models, building lasting relationships with families who return generation after generation.
What truly distinguishes RNJ Automotive is the absolute honesty embedded in every interaction. Rather than recommending costly repairs to maximize invoice totals, Rick evaluates each vehicle and explains exactly what is needed and why. Reviewers repeatedly praise the absence of upselling pressure, noting that the shop never pushes unnecessary work. This approach reflects a customer-first philosophy that treats every vehicle as if it were family-owned. Fair, transparent pricing makes professional auto care accessible without the anxiety that often accompanies mechanic visits.
Customer stories illustrate this integrity in action. When one family needed extensive repairs quoted over $5,000 elsewhere, Rick completed the job for a fraction of that amount after a proper diagnosis revealed a simple fix. A daughter's radiator emergency resulted in a $500 tow and a complimentary radiator cap replacement, saving the family thousands. Multiple reviewers emphasize that the team treats customers like family members, not wallet targets, providing trustworthy advice that keeps clients coming back.
15 of 19 reviewers explicitly mention fair or honest pricing, with multiple customers contrasting RNJ's approach to less transparent shops. All five-star reviews either name Rick or Rob by name or describe the owner directly, indicating consistent personal service. No negative reviews appear in the dataset, while positive reviews cite diagnostic skill and honesty as primary reasons for recommending this shop.
| Sunday | Closed |
| Monday | 9 AM–6 PM |
| Tuesday | 9 AM–6 PM |
| Wednesday | 9 AM–6 PM |
| ThursdayToday | 9 AM–6 PM |
| Friday | 9 AM–6 PM |
| Saturday | Closed |
Computerized engine analysis to identify issues accurately, followed by transparent explanation of needed repairs.
Brake pad replacement, rotor resurfacing, and hydraulic system inspection to ensure stopping safety.
Fluid checks, leak repair, and transmission service to maintain smooth shifting and extend component life.
Battery testing, alternator service, and wiring diagnostics for electrical issues across all vehicle systems.
Coolant system flush, radiator repair, and head gasket diagnosis to prevent overheating damage.
Routine oil changes, filter replacements, and multi-point inspections to keep vehicles running reliably.