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Fleet Computer Diagnostics - Heavy Duty


Protrans Automotive & Transmission Specialists understands the importance of your On-Board Diagnostics. Give us a call or stop by for a complete diagnostic check up:

Check Engine Light
No one likes to see their truck's "Check Engine" light come on. The light could mean a costly problem, like a bad catalytic converter, or it could be something minor, like a loose gas cap. At Protrans Automotive & Transmission Specialists, we can pull the code and diagnose the problem for you. Give us a call at 951-367-7400 or stop by the shop for our expert assistance.

Computer Diagnostics
Modern vehicles are fitted with at least one onboard computer. The computer's main function is to monitor and adjust the engine and transmission. Computer testing and diagnostics is an integral aspect to professional electronic work on modern cars. Computer diagnostics help find the root causes of major and potential automobile problems. At Protrans Automotive & Transmission Specialists, we have state of the art computer diagnostics equipment such as digital code readers, pressure test kits, circuit testers, digital tachometers and more. Call 951-367-7400 or visit our auto shop in Riverside, CA 92507 for all your vehicle's computer diagnostic needs.

Drivability
Drivability is the degree of smoothness and steadiness of your truck's acceleration. Most modern vehicles are fitted with on-board computers that continuously check the readings from various sensors. In case of drivability problems, you will receive a warning message on your truck's dashboard. To have your truck diagnosed for drivability issues, visit Protrans Automotive & Transmission Specialists in Riverside, CA 92507 today. At Protrans Automotive & Transmission Specialists, we have the necessary tools, training, and technology to diagnose and address your vehicle's drivability issues.

Engine Controls
Basically, an engine control system is an on-board computer in your truck. Like all computers, the engine controls are composed of hardware and software. Automotive engine control systems are responsible for regulating exhaust emissions, and providing increased fuel economy. To get the best out of your vehicle's incredibly powerful technology, make sure engine controls are working properly. To check if your truck's engine controls are working properly, call Protrans Automotive & Transmission Specialists today.


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OUR REVIEWS

 (334 Reviews)
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A 2025 UPDATE TO MY PROTRANS REVIEW My orphaned ISUZU SUV is now more than 30 years old. Neither the engine (208,000 odo miles) nor the transmission (70,000 odo miles) show any indication of wear, oil consumption or degraded performance. Last year, we upgraded all the engine sensors and the HO2 sensor on the cat converter. This cost me some ducats, but the vehicle runs like brand new, starts the minute you twist the key -- cold, warm or hot. Gas consumption is still factory spec. We've recently replaced the front wheel bearings and rebuilt the steering gear-box. ProTrans has continued to give me stellar support and advice. They've been worth every penny so far. If something goes wrong during the process of a repair, they'll correct it without further charge. I've been thinking to buy a new or pre-owned/lo-miles ride for several years now, and I've been ready to execute my plan for a Toyota hybrid. I just don't have to do it this year. So I'm putting it off. Again. =======================================

, 07/24/2025

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