I wish I came here first! If you're browsing through Yelp looking for a good place to bring your Diesel go ahead and come here. Fernando and Fernando Jr are great people. I'm not going to name names of goons but the Fernanduo saved me $1700 bucks and gave me peace of mind to know someone I can trust is around the corner. Auto & Diesel Service are exactly what you want to see when you walk into a small business independently owned. Family owned, mechanics moving with purpose, lots of trucks and fresh customers flowing in during your stay. You know you're in the right place. read more

I was glad to have found a place with great reviews!but unfortunately, we didn't have the same experience. Walked in and the guy the at the front was rude and said .... Whatever needed to be done was going to be at least 2k right off the bat ?? Huh? ummmm ok? Without looking at it? Then asked us to come back in a week. When we came back which was a mistake, they acted the same way and said the exact same thing. I guess we dodged a bullet. read more

The family here is very nice, but the work done on my vehicle was Not done properly. I brought my vehicle in to fix a valve cover leak and some other items. The job wasn't done properly at all. The leak continued after a small amount of driving. I hired another mechanic and the two of us decided to investigate and fix the leak. We took the cover off only to discover that there was no Gasket!! This is why it was leaking. I payed all of the money for the hourly rate only to have the problem not fixed. They had my vehicle for over a month, when I picked it up I opened the door only to discover there were parts left on the drivers seat. The parts were missing some bolts and nuts. I had to return to the shop and have one of the employees help me find the missing pieces. I put things back together myself, but what a blunder on their end. They installed a new Fuel Sending Unit as well, but that started to Leak and I had to properly replace and Install another Gasket. One last thing, someone at the shop was taking my vehicle out and about. I know this because when I left it there the first time my vehicle had a full tank. When I picked it up a quarter of a tank was missing. I thought maybe I was imagining it. So I filled it up a second time when I brought it back to them. Sure enough when I picked it up, it was down about a quarter of a tank. My tank holds a lot of fuel so it wasn't just them test driving it. This happed Twice. Businesses like this one have way too many vehicles in their shop. This is why these things happen, they are not able to do jobs properly because they are under pressure and doing too much. Start saying No we are too busy and don't be greedy! Pass on this shop and find yourself a Better automotive shop. I think the family is full of nice people, but the work is Unprofessional. read more

This Family Business is one of the most Honest Diesel mechanic shop I've been to. They are very reliable, and will tell you that there nothing wrong with your car and not charge you the $180 Dollar diagnostic fee that the Ford Dealerships charge just to look and tell you what's wrong. I'm very please I've found them. read more

Auto & Diesel Service - Auto Repair Near Me - Orange, California

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My neighbor asked me if I could help him figure out what was going on with his International box truck (he isn't very mechanically inclined), so I came over and took a look, and it seemed that the clutch wasn't fully engaging. Now I'm not a professional diesel mechanic, but I do know that something wasn't right and that either his clutch was fried, or it needed an adjustment. So I jumped on Yelp and searched "diesel mechanic" and bam, first one, 5 star was Auto & Diesel Services right down the street. I called them and told them what the truck was doing, they said "bring it on in, we'll take a look at it, no charge".... NO CHARGE?!?! You don't hear that too often, so I told my buddy to get down there and take them up on this. He left and came back maybe an hour later and said "Dude, you're the man! They found that it was just the clutch adjustment, and they did it FREE OF CHARGE!!!" This is how you do business guys, way to go! Not only did you take care of my buddy's truck, but you gained a customer, and 3 people who will refer your business your way. There needs to be more businesses that follow this service model, because there are too many dishonest and shady mechanics out there who could have easily said "Yea, it looks like it's your muffler bearings are causing your clutch fluid to boil, we'll need to upgrade the flux capacitor before it flustergates through your bell housing" - ok, that was a bit of a stretch, but you get the idea, these guys are super honest and good people. People love this place for a reason, keep up the good work!! read more

Fernando is the man! great combination of competent and affordable. these guys are ford Powerstroke masters. I bring my truck over 400 miles to get it worked on here! read more

I take my diesel truck for maintenance and repairs. Have been going to them for 3 years with no issues. Is not easy to find a good honest mechanic. Go early for regular maintenance cause they get busy real qu read more

6.0L Ford Power Stroke owners, this is the place for you. Fernando and crew know all the unique service items specific to this great yet misunderstood engine. Many of his customers are fleet accounts who cannot afford long down times. He keeps most of the 6.0L top-end intake, oil system parts, gaskets and filters in stock. He knows the "right" updated part numbers to use. He even keeps a pile of pre-cleaned, de-carboned intake manifolds ready to swap out after messy EGR valve failures. He turns these trucks around FAST and gets it done right. Common-folk, water polo dad, Excursion owners like me get the same level of service as the fleet guys. We all depend on our trucks and want them ASAP. Fernando treats everyone as a priority. Shout out to Titan Automotive across the street for recommending him. read more

Been coming here for years however this time was a nightmare, they took apart the steering box and put a new one in guessing this would fix the problem well that part took almost 2 days to complete that, they also change the power steering box had a very bad steering problem, well that didn't fix it because that wasn't the issue show they decided it was better if she wanted me to spend another thousand dollars steering column the shop you need to be rebuilt and I was your only problem with it it's been another day taking the entire box off put the old parts all that again if you want to quality service don't go to this place. Very unprofessional service read more

Was referred here to Fernando and his family for a diesel car, and all I have to say is that he is the most generous and gracious mechanic I have ever met. Not only did he help diagnosing problems others have missed, he did it at a cost much less than others has proposed. Fernando also directed us to another transmission shop that has his seal of approval, which was also amazing. Thank you so much. You have our business for life! read more

We love The Fernandos!! And Luz! Can't forget LUZ!! Very honest. They guarantee their work. If it is something my husband can fix they send me home with instructions and a list of parts we need to order and my husband will do the job. I've never felt taken advantage of. They show me the faulty parts and explain the entire situation and make sure I don't have questions. I have been taking my 2004 Ford Excursion Diesel there. They did the bullet proofing to it and years of repairs (it has over 200k miles.) I've been a customer for over 10 years and have never gone elsewhere. Our family moved out of state, but I would HIGHLY recommend Auto Diesel. Great people!!! read more

Fernando and his largely Latino staff of crack mechanics at Auto & Diesel Service are top notch, highly service oriented, incredibly honest and amazing efficient. I give them my highest recommendation. I took my Ford E-450 El Dorado bus first to Villa Ford, who tried to charge me over $2000 with tax on an AC compressor repair. Read my one star review of Villa Ford at http://www.yelp.com/biz/villa-ford-orange#hrid:yOAIDK0EQoD9tKhwRhP-Rw Suspecting unscrupulous behavior by Villa, I called Fernando at Auto & Diesel and explained the Villa Ford diagnosis (but did not disclose their estimate), and he said he could do the exact same job for $1100, almost half the price!!! I was shocked as my brain tried to understand why there might be such a huge price difference. Eventually I caught the Ford Villa guys red handed in their misleading statements and massive price inflation and went to Auto Diesel instead. Upon arrival, Fernando declared the Ford Villa diagnosis was incorrect. I paraphrase: "The AC Compressor doesn't need replacing and the system doesn't need to be flushed like Villa Ford said. The compressor is fine. Instead of the $1100 repair I originally quoted you, we just need to replace the AC Compressor hub assembly, pully and clutch, which should cost around $400...let me show you". Fernando took me to the back of the shop and showed me exactly how the compressor, hub, pully and clutch all interact, as if I were his student. He said he had no need to do an unnecessary repair. He was busy and never needed to do advertising. Treating his customers honestly and fairly with the highest level of service was how he advertised. Now I see why!! By 6pm, only 3 hours later, the job was done, the Air Conditioning worked great, I had a deeper knowledge of my bus, and I was on my way back to SF. All for $400. Incredible!! Again, I give Auto Diesel Service Co. my highest rating. Go there for excellent outstanding service. I live in San Francisco, but wish I could keep taking my bus to Fernando and his team. Hope this was helpful!! read more

Fernando is great!! Always takes care of me and my cars. Explains to me exactly what the problem is and is honest and fair in his pricing. Two years ago Villa Ford charged us $1700 for a repair on my husbands F350 Diesel that did not fix the problem then 3 weeks later quoted us over $2500 for the "new" problem. That is when I found Fernando here on Yelp. (somehow some bolts were loose on the high pressure oil pump, thanks Villa Ford) He fixed the truck and would not take a penny. He said "it was no big deal" but it was a big deal he saved me a lot of money and has earned my business ever since. Several months later, it was raining, I was close to his shop when my Expedition started acting strange. I pulled in, he popped the hood, sent his guy to the parts store, changed out a hose and had me back on the road in less than an hour. read more

Auto & Diesel Service is probably the best auto repair shop I have ever used. Having owned many, many questionable vehicles and dealt with an even greater number of "mechanics" who "know everything" I can honestly say that I haven't ever met anyone who knows as much about vehicles and service as Fernando, Alex, and the rest of the excellent crew at Auto & Diesel. I have brought in all kinds of issues (see that part about about "questionable" cars...), and Fernando has accurately diagnosed, competently repaired, and fairly quoted me to fix every single problem. I have never once had a repair fail or had to take my car back because of some issue the mechanic did (or didn't) do. His shop is exceedingly busy (word of mouth brings in more and more customers every day), but he can make time for your vehicle almost any time you call. These guys excel at providing excellent service and expert repairs. They stand behind their work as well. I have brought him virtually every mechanical issue you can think of - problems that other mechanics couldn't even diagnose - except for bringing in a car on fire. Given my proclivity for finding rolling tetanus shots on wheels, it's only a matter of time before that happens. I don't live anywhere near the business, but I WILL drive (or, in some cases, tow) my vehicle past every other mechanic shop or dealership to get my smoldering heap to Auto & Diesel EVERY. SINGLE. TIME. Heck, I towed my vehicle from Big Bear (thanks, AAA!) 76 miles to this shop because I trust Fernando! I cannot recommend Auto & Diesel highly enough; these guys are absolutely the BEST mechanics I have ever had the privilege of recommending. read more

The most honest mechanic you will find. He does not fix anything that is not needed!!

Great family owned business, JR has a wealth of knowledge, and extremely helpful getting our work van on the road quickly. One of the most honest business and mechanic I've had taken my sprinter to. read more

Its not easy to park and they are super busy but they also are very professional, know what they're doing and are reliable people. They re not the type to repair something that is not needed. They do the maintenance on all of ours trucks read more

I have an imported van from japan and they were able to find parts and install all in the same day! They are extremely friendly and know what they are doing! Thanks team. read more

Fernando is awesome. He looked at my truck and figured out that a sensor went bad that normally doesn't go out when they did the EGR cooler so they don't replace it to save me money. It ended up going bad so he showed me where it is explained everything to me and didn't charge me labor to go back and replace the sensor. Fernando really looks out for his customers and their best interest. He keeps his rates affordable and holds all parts so you can see what work he did. It's great to find a reliable honest mechanic. read more

This place is great! I was having car door issues & Toyota wanted to charge me an arm & leg! 600 dollars and wanted to keep my car for the day.. which I wasn't able to do... I found this service shop online and they were able to give me a GREAT deal and they were able to finish it within the hour! I will definitely be coming back!!! Thanks guys!!! read more

Even if you don't need anything fixed it's still worth it to visit Fernando. Bottom line - an honest and competent repair shop that can tackle all the major systems, including A/C. Did a complete overhaul of my '89 Ford van based RV AC, checked-out everything under the hood, repaired issues with brakes, kingpin, various leaks, tuned it up, etc. Increased my mpg by 1.5 mpg. Air blows cold. Even attached a deadbolt strike plate to my decrepit door frame for me (no charge.) Wasn't cheap, but a lot less than I would have paid at the dealer and the OC Ford dealers have terrible service reputations. Done right, the first time, and for less than what was quoted, despite discovering half my compressor was missing and some other crazy stuff with the other parts. They don't really need yelp reviews - the place is always busy. read more

Fernando and his crew are awesome. Incredibly honest, too. We have a charter bus company and have come to him for at least 4 years. We bring our personal cars as well. He's just great. Space is tight at his shop so that's a challenge sometimes but not a deal breaker. read more

Here at OC mini movers we appreciate great service and Fernando is very good at what he does he is taking care of both of our box trucks and another one that we have there with him right now he is very good at what he does I wouldn't hesitate to send anybody his way they know what they're doing so if you have diesel repairs that you need done call these guys first read more

Auto & Diesel Service - Auto Repair Near Me - Orange, California

This place is AWSOME Fernando and his crew are the best in the business best customer service and honest prices. My family has benn coming to Fernando for years. read more

Auto & Diesel Service - This place is AWSOME - Auto Repair Near Me - Orange, California

I have a 96 Dodge Ram 2500 12 valve Cummins. These guys made my engine brand new and Saved me about 2k compared to all the other competitors. I went in to get my timing housing replaced along with my KDP fix and they pulled and cleaned my entire engine and reset all my valves and replaced all my seals. Now understand because of this great service. They are backed up. Which is understandable. especially right now with everything back order and everyone short handed because of Covid. They happen to be short staffed at the time I brought my truck in and still got my truck rebuild done in 5 days. They honor their work and take pride in it. I recommend them for anyone who is hesitant with a shop for diesel work in Orange County. Thank you to Fernando Senior & Junior. Your father and son business is a true American dream! Keep up the great work! read more

Thanks to Yelpers, another amazing find. These days its hard to find a good, Trusting honest mechanic Fernando and his crew are awesome very helpful and will tell you how it is no BS plus he wont sell you shit unless your truck really needs it. will be back with my fleet of box trucks read more

This my first review for yelp. Man that guy Fernando is a nice guy. He fixed my turbo diesel with an unbelievable price. Don't judge the book by its cover. This is place to be if you need your diesel fixed. Thank you. read more

I actually found them through Yelp. They had great reviews. I was not disappointed. They are honest, fair, and very good at what they do. I would say they know even more than the actual Ford service providers. The company I work for use them all the time and only go somewhere else if the trucks break down in another city. I would highly recommend them to anybody, If fact my son was getting ripped off somewhere so I had him go to Jr and Fernando and they took care of him. read more

Thanks Yelp!! My husband was able to find Auto and Diesel Co. We were so surprised when Fernando didn't wanted charged us to get my husband VW golf running again...and YES! " these days its hard to find a good, honest mechanic"!! We didn't have to wait at all , he told us what is wrong with the car and even help us tie some nuts and bolts that were loose for free! If we have any problems with our car ,we are going back to use his services again. Fernando's phone number is 714-538-5731 read more

Fernando is AMAZING! He puts every other mechanic to shame, he told me about how he first started with the business and how it was in a hole when he first purchased it. I bring all my vehicles here, I started with one our work trucks, Diesel truck, and he knew exactly what he was doing his estimate was over 160 bucks cheaper than everywhere else, this guy keeps them all honest. I guarantee you will be satisfied. All the guys know their stuff, they don't try to UPSELL you like all the other places, he has survived through this economy by showing the utmost respect to customers and treating them fairly with honest practices, Thank you fernando , i've sent you all my friends and family and will continue to praise of your service. read more

I own a furniture store and only take my large delivery truck to Fernando for service. The bottom line is that he runs his business like I run mine; provide excellent customer service. Fernando always goes the extra mile to explain to you exactly what is wrong, what needs to be done, and stands behind his work. Most recently we had Fernando provide us with a rebuilt transmission for our truck. Within months we were having problems. He removed the transmission, sent it back to the company that did the rebuild, reinstalled the transmission, and provided new fluids and filters at no charge! Nothing but excellent things to say about Auto & Diesel and Fernando! read more

As another Diesel owner, ( Ford E350 7.3L IDI / E4OD ), I wanted to put my two cents worth in as to my experience with Fernando. Fernando and his team of super diesel techs have been a "lifesaver" for me and my diesel van. The only thing I wish Fernando had more of is space to work. He's got people coming in from all over the state - which I discovered when I brought my van over for him to bring up to snuff after a craigslist purchase. Somehow, he works everyone in. For me, I am retired and my van was not top priority, and had a lot of persnickety little things to address - so my servicing was stretched over two months or so... I got to see a lot of things and meet a lot of his other customers. Turns out Fernando has a very loyal clientele which do whatever it takes to bring their vehicles here ... from the diesel work trucks to the big haulers. Fernando does have a lot down the street he uses as a staging area, so if you drop by and find his place so packed you can't find a place to park, you may have to park around the corner ( I did and noticed a lot of others did too ). I have not seen him have to turn anyone away yet, but I have seen him and his guys working through the night sometimes to get everyone taken care of. ( I live about five blocks from his shop ). This is the guy you want to see especially if you have one of the older diesels and you need someone who knows exactly how these things work, not just what one is taught at a single-make trade school. Wants it done right. And can't afford to monkey around. And, if truth be known, this is my first Yelp review. After all the extra effort Fernando did to help me with my van, I felt moved to share my experience with the rest of the Yelp community. I can definitely see why his shop is so busy - but somehow, he always seems to be able to find a way to work you in. read more

These are are more than honest and trustworthy. THEY ARGUABLY KNOW THERE STUFF BETTER THAN ANYONE IS SOCAL. I have a very custom 2003 F350 6.0L, with an oil leak and exhaust leak after a complete bare-block engine rebuild from Swamps in TN. Fernando & Jr worked to get my beast of a truck running like it should have from the beginning of the rebuild completion. Fixed the custom exhaust manifold leak and had new oil lines sent out from Bulletproof in AZ. Within 2 weeks the truck was running better than it ever has. I will forever be going there for any work I need in the future. Their multiple mechanics, along with Fernando & Jr work together to get all work done right. Incredible find. read more

Fernando is the man! He delivers solid advice at a fair price. We took our 1985 GMC Suburban (her name is Sugar) in to have it evaluated for what seemed like a long list of issues and Fernando and the crew took their time and figured out the root cause. We were able to get her home safe and sound. Thanks to Fernando and his team of diesel experts we have our Sugar back. read more

Rarely have I been through such a stressful time with my Excursion and the inability of past mechanics to resolve my Service Engine Soon light constantly being on. It mattered because I needed to get my Ex smogged in California and it is an automatic fail if the SES light is on. We had done everything we could to resolve it to no avail. We even became members of the Ford Enthusiasts Forum and many of the members were giving us ideas and opinions and suggestions and diagnoses as to the cause. It all boiled down to the PCM. Brought it to Fernando and Auto & Diesel Service and it was the right decision! He was patient with our constant questioning him based on what we read on the forum and, although he had it for more than two weeks, he got the job done for a reasonable price! He has a customer for life and I told him so! Thank you Thank you Thank you! HIGHLY recommended! read more

My starter was acting up and would spin but not engage. I found the bolts had come loose on the starter. I was able to hand tighten the bolts and get it working. Took it to Fernando's and in 110 degree heat and they were so busy they had to move two trucks for me to get in there shop. They fixed it in 15 minutes and did not charge me a dime. He has a new customer for life. Thanks Fernando your truly the best!! read more

Fernando is always very honest and reasonable. It's a small shop but they're always busy and still manage to complete the work in a reasonable time frame. I highly recommend them. read more

I live a block away from this auto repair shop. I always see trucks occupying most of the space so I assumed they only serviced diesel cars, hence the sign. My Civic wouldn't fire up so I gave them a ring but prior to calling this shop I called a popular shop across the street that suggested I tow my car over. Fernando @ Auto & Diesel saved me a tow & instead sent his mechanic over to my house to diagnose a electronic problem. It turned out to be a simple fix. In addition, he was also able to do same day repair on my Civic while I was away at work. I appreciate the extra effort, convenience, and customer service Fernando & his team delivered. He's now my go-to mechanic. read more

This guy knows his stuff. I have been coming here for three years and I live in the San Fernando Valley fair prices and when the mechanics were I used to work couldn't fix a diesel truck this is were they would send it. Just ask for Fernando he will take care of you read more

After getting the run-around from Pep Boys and lied to by the Dodge dealer. I was referred to Fernando at Auto and Diesel Service by Titan Automotive which was also highly rated. Fernando was great on the phone even though I called just a few minutes before closing, he took time to answer my questions. I took my truck in the next morning, last Saturday, and he checked it out, told me there was a crack in my wheel-well and my coolant leak was just a small over flow from my reservoir which had been filled too full. He even replaced my hood shocks for a courtesy that I had been carrying around for the last year. No waiting and no charge. I have finally found an honest repair shop. read more