Best Truck Repair Shop Concord Near Me

4worldlovers: Welcome to Left Coast Diesel, your northern California Leader in diesel services, repairs and maintenance. Over the last 13 years of quality work our vision and what we are here to achieve for our customers has always been to help keep and make their rig dependable and on the road. In years past, the diesel market was heavily involved in aftermarket accessories that were build around fuel mileage and more horsepower. While these products offered much immediate gratification on older vehicles, we have seen over time that maxing out many of the factory components(I.E. Turbo and injectors) the truck starts to see repairs sooner than vehicles that have remained stock throughout their lives.

In today’s changing emissions world, Left Coast Diesel has become the leader in dealing with carbon emissions build up, the causes and effects of EGR components and maintaining customer vehicles through our state of the art EGR cleaning tools and knowledge about the functions and ways to keep these moving pieces in perfect working order for up to 100% longer than customers experience without Left Coast Diesel’s recommend service plan. We are seeing turbos get clogged with carbon from dirty systems and these EGR cleanings do not only improve fuel mileage but will help preserve the life of these turbo equipped with factory exhaust brakes and actuators. Turbo repairs can range anywhere from 5000-8000 depending on the variety for a new turbo installed; CLEAN YOUR EGR, DON’T DELETE IT).

Fleet services are also welcome and offered on all 2500-5500 service class trucks and through these fleet account it has allowed us to fully test and improve the way these newer trucks run and see far fewer repairs over the life of the truck. Quality lubricants is obviously a part of the scheme with Left Coast Diesel being your local Amsoil dealer bringing top class synthetic lubricants to our customer service regimens.

Left Coast Diesel’s “30k” service: While the dealer has a scheduled service regimen for all 2500+ trucks, the recommended inspection of differentials and transmission fluids is an “inspection” and replace upon inspection (you tell me if the oil is broken down or not by smelling your pinky). These recommended inspections are based on normal driving styles and non stress situations, if you are towing, hauling, have anything heavy in your bed on a regular basis, you can kick this recommendation to the curb. The fluids at this point have gone through high heat cycles and need to be replaced if you don’t want to look forward to 6-8000 dollar transmission builds, 1500-3000 dollar rear end rebuilds and being down from being on the job(the worst part).

The emissions equipment for years has been ridiculed and deleted across the country. Not only is this illegal but makes repairs and diagnosis’ hard and even impossible. For years Left Coast Diesel has looked to improve the functions and reliability more importantly through services and basic maintenance we have been able to achieve far more miles out of components that fail on newer 4th gen Dodge’s by almost double such as turbos, egr valves, egr coolers and injectors, all major expenses.

While the system is engineered to clean itself, often or not this is not enough to fully clear the system of carbon build up. The carbon build-up makes the system work harder with the immediate results of poor fuel economy and less power under load. When carbon build up gets the point of clogging a sensor, clogging an egr valve, not allowing the truck to breathe the way it wants and throws a check engine light for these symptoms, often which could have been avoided by a scheduled EGR system clean every 30k.

The immediate answer is yes with improved fuel economy and power with most tuners. While this is great in the early stages, these tuners are preventing the truck from cleaning out your exhaust system as much as it should (how it gets better fuel economy) and is stressing out the injectors, turbo and fuel system by maxing out the capabilities of these components. Our recommendation on all emissions related trucks is to leave them stock, while selling more products is great, we would much rather see customers invest that 5-700 dollars on services to prevent these expensive failures than make 30-50 dollars on a tuner that will leave the customer stranded.

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4worldlovers: Welcome to Randy’s Mobile Auto Repair, your premier Concord Auto Repair and Service Shop.

The auto repair experts at Randy’s Mobile Auto Repair have proudly served the Concord area since 2002. Our highly experienced technicians are respected as the most dependable auto repair professionals in Concord.


As the most qualified brake repair experts in the area, the auto repair professionals at Randy’s Mobile Auto Repair also take pride in their motorhome & RV repair knowledge.

4worldlovers:
Mobile truck repair covering the San Francisco Bay Area and beyond. Specializing in fleet and commercial truck or trailer repair. Some after hours emergency road side service and repair available! Five truck mechanics and two mechanics helpers to serve you. We do gas & diesel repairs. Call us first before calling a tow truck. Why pay to have it towed when a heavy duty mechanic can usually fix it on the spot? We carry some common truck parts in stock in our trucks. We repair lift gates and cargo doors, both roll up and swing. We are authorized by Maxon and Waltco to repair their lift gates. Let us help you!

We come to you, most times getting you right back on the road. This saves you from costly towing fees and down time. That truck could go to the shop and sit there for days waiting to be looked at by a mechanic. Why not have a mechanic look at it NOW? We start by diagnosing the problem and estimating the time and price of getting you and your truck back on the road. We also go the extra mile to find parts after hours. One of our customers was at the scales in Fremont with a bad tie rod end that was not availible anywhere in the area. They really needed this truck moving so they located the part in Stockton, Ca. at their shop. While one mechanic pulled the part off, I got in my personal vehicle and drove to Stockton, picked up the tie rod end and drove it back to the scales. They were extremely pleased with our service. We will report back to you what we find and how to proceed. We stock the most common items such as brake chambers, air lines, lights, door hardware, batteries, etc. We can help set up towing or advise you of towing companies in the area for you if it is really necessary.

2018 call us first! We have 5 MechanicS and 5 Trucks for Roadside and onsite Maintenance and Repairs. We do roadside emergency and fleet service.

Again God is good. January 2018 brought our office assistant Kacie. She is perfect. Say no more.

Febuarary 2017 brought James and Vic to our team. Two more honest, knowlgable techs, each with over ten yaers in the industry. They make me jealous! The speed of youth. These guys are not scared to work.