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Best Auto Repair, Riverside
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BIG OR SMALL,
WE DO IT ALL!

Now Servicing Diesel Engines!

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 211 Verified Review(s)

For the big jobs, take your vehicle to Protrans Automotive & Transmission Specialists! Our expert services are ideal whether you have a late model import or newer domestic vehicle. And because we guarantee the work we perform, you can rest assured you are receiving the highest quality engine overhaul and replacement services in the Riverside, CA 92507 area.

Our heavy duty services include:

Cylinder Block
A cylinder block is the powerhouse for the motor vehicle. The solid cast car part houses the cylinders and their components (gaskets, valves, and seals) inside a lubricated and cooled crankcase. Since it is one of the most important parts of your car, the block is designed to be extremely strong and sturdy. Although strong and sturdy, the block is susceptible to failure resulting in a vehicle that won't start. Cracked blocks, porous blocks, core plug, or freeze plug failure are some of the problems facing cylinder blocks. Call 951-367-7400 to talk to the mechanics of Protrans Automotive & Transmission Specialists about your cylinder block problems.

Cylinder Head
A cylinder head is the closed end of a cylinder (located in a car's engine block). It sits above the cylinder block, closing the top of the cylinder and forming the combustion chamber. The cylinder head coordinates airflow in and out of the engine. Since the cylinder head's chief function is to seal the cylinders properly, insufficient compression results in the car being difficult to drive. To have your cylinder head checked and repaired, talk to Protrans Automotive & Transmission Specialists's cylinder head repair and reconditioning specialists today.

Diesel
Although diesel engines don't require tune-ups and tend to last longer than gasoline engines, they do require regular maintenance. Typical maintenance tasks include:

  • Changing the oil & filter
  • Changing the air filter
  • Changing the fuel filter
  • Bleeding the fuel system
  • Draining the water separators
  • Refilling the urea injection system

You can count on the experts at Protrans Automotive & Transmission Specialists to help your diesel engine last a long time.

Engine Maintenance
Any car part manufacturer will tell you that preventive maintenance is critical to the part's lifespan. Like other auto parts, car engines aren't built to last forever. However, you can increase the engine's lifespan by performing regular preventive maintenance. The easiest way to maintain peak performance and fuel economy is to provide regular engine maintenance for your vehicle. To have your engine maintained by experts, visit Protrans Automotive & Transmission Specialists.

Engine Repair
When your vehicle shows any sign of trouble, bring it to Protrans Automotive & Transmission Specialists for full-service engine repair in Riverside, CA. From diagnostic check engine light repair to precision engine part repair, our expert auto mechanics are ready to help you.

Engine Repair and Rebuild
After years of use, your car's engine inevitably deteriorates. If you car needs a new engine and you are not ready to invest in a new car, consider having the engine rebuilt. This involves replacing or resurfacing all the rundown parts in an engine. Regardless of your engine replacement needs, Protrans Automotive & Transmission Specialists has experienced engine rebuilders ready to assist you.

Engine Replacement
The engine converts energy into useful mechanical motion. This amazing machine is what keeps your vehicle moving. Although generally reliable, a car engine is susceptible to damage and breakdown. When this happens, do not sit and stress over it. Take action. Take the vehicle to a mechanic for an engine replacement. Bring it to Protrans Automotive & Transmission Specialists. Visit us at 3420 Gato Ct for quality engine replacement services.

Timing Belt
A timing belt is a part of your car's internal combustion engine. The belt synchronizes the camshaft and the crankshaft rotation so that the engine valves open and close at the correct timings. Also, the belt prevents the piston from striking the valves in an interference engine. A timing Belt is a rubber belt that usually features teeth on the inside surface, while a timing chain is a metal roller chain. Most cars we drive now have timing belts instead of timing chains and gears. Although different manufacturers have their recommended mileage, you need to have your car's timing belt checked regularly. To have it checked by experts, contact Protrans Automotive & Transmission Specialists today.

Transmission Flush
Although most manufacturers recommend a transmission flush every 30,000 miles or every two years, some symptoms may indicate that you need a transmission flush sooner. Some of the symptoms that indicate that your car needs a transmission flush sooner are: transmission grinding or strange noises, problems shifting gears, slipping gears, surging of the car, and delay in vehicle movement. Flushing the used fluid from the transmission washes away tiny particles of dirt, clutch material, and metal shavings. For all your transmission flush needs, call 951-367-7400 or visit Protrans Automotive & Transmission Specialists today - we are transmission experts.

Transmission Maintenance
Any car part manufacturer will tell you that preventive maintenance is critical to the part's lifespan. Like other auto parts, car transmissions aren't built to last forever. However, you can increase the transmission's lifespan by performing regular preventive maintenance. The easiest way to maintain peak performance and fuel economy is to provide regular transmission maintenance for your vehicle. To have your transmission maintained by experts, visit Protrans Automotive & Transmission Specialists.

Transmission Repair
Our services include transmission repair on both manual and automatic transmissions. The first step in getting you back on the road is assessing your transmission to accurately determine the source of the problem. In some cases, we are able to repair your transmission simply with adjustments, replacing external seals, or replacing accessible parts. To have this done by specialists, call 951-367-7400 to talk to the mechanics of Protrans Automotive & Transmission Specialists today.

Transmission Repair and Rebuild
When it comes to automatic transmission repair, there are several options: buying a new one, buying a remanufactured one or having yours rebuilt. Each of the above options has its own share of advantages and disadvantages. Of the three options, rebuilt transmissions are the most economical. A rebuilt transmission involves removing the transmission from the car, disassembling it, replacing worn out parts, reassembling it, and then reinstalling it. To have this done by specialists, call 951-367-7400 to talk to the mechanics of Protrans Automotive & Transmission Specialists today.

Transmission Replacement
In motor vehicles, the transmission usually refers to the gear box, which uses gears and gear trains to transmit speed and torque from a rotating power source to another device. You can have your car's transmission replaced with a new, rebuilt, remanufactured, repaired or used transmission. For more information contact Protrans Automotive & Transmission Specialists in Riverside, CA. Our experienced service technicians can help you make the best decision for your vehicle and your wallet.



To learn more about our Transmission services, call us at 951-367-7400 or request a quote by clicking below:


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what our customers say

Once again you guys came through with amazing service, my CTS running amazing. Thanks again, you guys forever have my business. From new to old school, they got you. Don't Hesitate to call them PS: My El Camino still running amazing also!!!!
J
, 05/03/2022

Had a transmission redone here about a year ago now, never have had a mechanic that I trust until now. They were great at communicating what was going on and didn't try to suck all the money out of me like a lot of mechanics do. They did exactly what they said they were going to do and didn't do "extra" to jack up the price. Very professional and quick. I'd recommend to anyone. A+ shop. Tiny bit more expensive than some other places, but the quality is worth the extra money.
T
, 04/25/2022

Very professional outfit there. These guys did great work on my Kia. I know those parts were hard to find too. My car has never run better. Highly recommend this place.
T
, 04/24/2022

Visited for coolant flush/ fill. Great prices, matched quote, stated over call nearly perfectly. Had break rotars cleaned / derusted and smoothed. Also matched quote well for good prices. Recommended my mother to visit for her cars AC issue. Got it done for much less than the dealership would have done it for. It was about 450-550. Dealership would have done it for 700-900. They perform quality service for fair prices. For anything beyond swap part service (self servicing / maintenance), these guys can meet your cars service needs that you may not have the tools or equipment for.
L
, 04/18/2022

Very good service and they even follow up after.
K
, 03/30/2022

From the moment I called Protrans they were on top of it! Their customer service is top notch and that means a lot in the auto repair industry. They were genuine, understanding and extremely patient with me. They follow up with their clients after service and it's obvious they take their customers satisfaction to heart. Thank you Protrans! Highly recommend!
C
, 03/28/2022

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