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J. E. I. Japanese Engine Inc.
- Dealership
- Engines
- Team
“In the last 6 years, I've taken a total of 7 vehicles to him for various things and will continue to do business with him for as long as I'm in the San Antonio area.”
Best Engine Repair & Rebuild near San Marcos, TX
3 of these technicians are based in San Marcos; the others serve San Marcos from San Antonio (45 mi).
1 open 24/7 · 10 open weekends · 22 rated 4.5+
Data verified October 16, 2026
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USA Motors San Antonio Inc
“The only thing I question is that the 2 repair experiences I had - someone went rummaging through everything in the car - trunk included - private paperwork & all.”
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Bert's Gene Brown Transmission
“Most importantly, not once did I feel like they were trying to get over on me due to my lack of vehicle knowledge, but actually wanted to ensure my car was problem free.”
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Kingdom Auto Repair Services (K.a.r.s.)
- Truck
- Call
- Integrity
“Juan and Kerry have always gone above and beyond to help me, even checking in to make sure I was able to get from place to place safely when I was having major car issues.”
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MJ Auto Service
“Absolutely best mechanic shop everyone there is very knowledgeable Tyrone usually does the work on my vehicle the owner is a wonderful guy everyone who works their is super professional they are amazing I highly recommend them to everyone!”
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B & M Automotive
- Knew
- Inspection
- Diagnosis
“They asked for the reason of changing them, how many miles on the vehicle, asked if I wanted them changed based on how much life was left on the pads, overall a good and thorough experience.”
Listed for drivers in and around San Marcos, TX, these 24 shops repair, rebuild and replace engines. What each one says about machine work, warranty terms and the engines it supplies comes from its own website; ratings and quotes come from public reviews.
Area overview: San Marcos, TX
The 24 technicians on this page are rated from 3.8 to 5.0 across 2,654 reviews; 15 have 50 or more reviews and 22 are rated 4.5 or higher. When customers rate these technicians on specific qualities, they most often praise professionalism (92%), quality (90%) and value (90%). The topics that come up most in reviews of the technicians on this page are "diagnosis" and "honest". 1 is open around the clock; 10 are open on Saturdays and 4 on Sundays. 1 lists staff certifications (ASE) and 6 have a BBB rating of A or A+. 12 have ten or more years of experience, the longest 41 years. 1 offers emergency or roadside call-outs; 3 offer financing; 2 give free estimates; 2 are family- or locally-owned and 6 list coupons or special offers. 1 has Spanish-speaking staff. We have a website on file for 16 of the technicians on this page; 12 publish a contact page; 6 list a public email and 2 take bookings online. We count these figures across the technicians on this page; distances are straight-line, and hours and prices change, so confirm the details with the technician before you visit.
Why do some listings show another city?
3 of the 24 shops are in San Marcos itself and the rest come from other towns within 50 mi. An engine job means leaving the car for days, so the drive happens once at each end rather than every morning.
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Larson's Automotive
“I have sold cars for 5 years and worked as a automotive tech for 2 and I have been amazed at how fast and reliable Larson's has been with not one, not two, but ALL of our vehicles.”
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Mendo Motorz Auto Center
“This place is it, took my jeep to multiple places spend well over $1000, but took it here and they fixed it, fast and alot cheaper than any places I quoted.”
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Alamo City Garage
- Needs
- Noise
- Discount
“Not only did the guys fix the oil leaks that I was having, they noticed other things along the way, and notified me about these issues, and I had them all fixed as well.”
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Dynamic Diesel Service
- Diagnosis
- DEF
- Technicians
“It's hard to find a shop that you can trust, but at Dynamic Diesel I have 100% trust and faith that they will do what's best for my company vehicles.”
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Automotive Brake & Clutch
- Prices
“Last year they fixed my AC and just recently had brakes done on the truck.”
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Texas Diesel Injection
“I needed a complete rebuild on my 3rd Gen Cummins, and I can say with all confidence in the world that these guys are the only guys I'll ever bring my truck to.”
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Avila's Auto Service
“I cam across this place by mistake as my car was overheating it was already close to closing and these guys took care of my issue and helped me out for a very affordable rate I recommend to anyone”
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ETS Automotive Repair
- Sunday
- Understanding
- Alternator
“They are honest, weigh out your options with you, they take your situation and time into consideration when helping you navigate those options for your car.”
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Georges Garage
“I have had driving schools in the past and I am sure I have saved myself thousands of dollars not only in lower costs but with proper diagnosis and honesty.”
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Ellison's Discount Auto Repair
“He repairs what you ask for; but if something else is wrong he lets you know and shows you the problem: never presses you in to something you don't want or need.”
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Sergeant Clutch Certified Engine & Transmission Repair Shop
“Sergeant Clutch not just honored the warranty they helped me find a great dealership to get the work done without having the van towed back to San Antonio.”
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I D Motors
- Vehicle
- Price
- Mechanic
“Best mechanic I know”
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94 Diesel Services
- Mechanic
- Price
- Skills
“Very professional and affordable… had the pleasure of actually meeting the owner and i assure you i will not take my services anywhere else but too 94 Diesel Services.”
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Mega Power Engine Treatment
“The Mega Power Band Engine Additive Service they promote fixed my cars problem for just $400.”
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BT Automotive
“I have an issue with my Chevy Sonic and I didn't know what was going on until, one of my friends recommended BT Automotive and Bashar really did a good job fixing the car and saving me the Hussle and a lot of money.”
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Salazar Mobile Mechanic
- CV
- Price
“I'm on vacation in san marcos, needed some emergency help due to my car dying went to Google for mobile mechanics stumbled upon this mechanic would definitely recommend them to everyone!”
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Carus Auto Repair
- Future
- Diagnosis
- Vehicle
“I had overheating issues all weekend and he diagnosed the issue, ordered the replacement part and I met him in a parking lot the next morning after I dropped off my son and he came to fix it.”
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210 Diesel Service
- Mechanic
- Truck
- Diagnosis
“Andrew the Mchanic was very experienced he diagnostic my truck very fast only had little downtime he get me back on the road fast I have used 210diesel for a while now very dependable and reliable, highly recommend it price reasonable”
Engine Repair Services in San Marcos, TX Cost Estimates
Minimum cost
$653
Maximum cost
$4891
National Average
$1957
Avg Per Hour Rates
$96
$1685
$2718
Average price range is based on 263 cost profiles
Why these companies made our list
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