Diesel Injection Service

Reviews

Reviews are sorted by relevance, with the most helpful and insightful feedback listed first for easy reference.

  Kenneth Taglavore
2 months ago
Took my 2011 f350 for some major repairs,Anthony was more than helpful walking me through all repairs and keeping me updated throughout the repair process . Got my truck back running like new even had it washed when I picked it up they treated me great and there prices were great for the work I had done . If you want honest and quality work I would bring your truck here .

  emanuel granados
4 months ago
I took my 18 ram cummins for a turbo repair after the dealer quoted me way too much . The repair was quick and a lot cheaper . Marcela was excellent with giving me updates. I will be back when needed

  carriet96
a year ago
I recently went down to Fontana for the Nascar race. My truck broke down while I was there so I went in and spoke with the owner Donovan Marshall to see if he could help me. Donovan reassured me that he and his professional and qualified staff could help me and fix my truck in a timely manner. I am so grateful for all of the help from the Front office staff, the mechanics and from Donovan. I cannot thank them enough for helping me get my truck fixed so I could get back home safely.Sincerely,Mark Hahn

  Stephen Nagy
2 years ago
These guys treat you like family! Great place for parts and service! I never leave feeling gouged, always treated fairly, amazing customer service which is few and far now a days. Thank you Donovan, Drew and John for keeping my family on the road safe!

  Victor Jimenez
2 years ago
These guys are awesome!! I've been here twice and always left with a smile. They are super knowledgeable and honest. The first diagnosis was spot on and gave me peace of mind, but included a warning that there was a strong possibility that one or more of my injectors was returning too much fuel, causing my truck to go into limp mode from low fuel rail pressure while under heavy load. I finally pulled the trigger on having them pull and test the injectors, after all it has 350,000 miles on it. Testing confirmed the initial diagnosis so they installed new injectors and repaired a leaking coolant line to the turbo which again gives me peace of mind that I am good to tow my trailer to the Sierras without worrying about failures. I have every confidence in recommending them to any diesel owner that needs top notch mechanical work done by honest people that won't take advantage like so many diesel shops do. They will take the time to explain things in such a way that you will feel comfortable making an educated decision. This is the only shop that will ever see my truck for any mechanical issues! I wish I could give them 10 stars!!!Update: I was preparing for the Sierra trip I mentioned when I noticed a spot of coolant under the truck. I called Donovan and he told me to bring it in and he would check it out. I figured it was something related to the hose that they had fixed, which they didn't charge me for and his tech probably spent 2 hours on it. It turned out that my water pump was starting to leak, not bad yet and there was absolutely no pressure to replace it, but being the good guy that he is, Donovan ordered the parts and got it done for me as quickly as he could to ensure that I could take my trip to the Sierras without the threat of losing my cooling system 300 miles away from home. I got back this weekend from the Sierras and the truck ran amazing! It pulled up the grades without breaking a sweat and ran nice and cool like it was suppose to and I was pulling through 100 degree weather. Like I said before, Diesel Injection Service is the only shop that will wrench on this truck from now on.

  Alan Crofut
4 years ago
Excellent service, thorough, trustworthy and really good people. Very qualified. My Chevy 5500 is new to me, they answered all my questions and did more than I thought of but the cost was less than I expected and very reasonable. I ve been to many shops with my Powerstroke, and many more with the big rigs I drive cross country. Exceptional business. Diesel Injection Service is the best of the best. They deserve more than 5 stars!

  Twinflyer
a year ago
Took my 09 1 ton Dodge in with an exhaust brake problem. They had the turbo repaired and did a couple other fixes. The truck runs great now and the price was very fair. This is the only shop I would trust to work on my truck.

  Bunmy Lap
2 years ago
I took my in for repair, cause of my problem on my 2002 Chevy Silverado diesel was check engine cones on when going incline up a slope grade and lost of power while towing a trailer or have a light load. Took it in for repair thinking they were specialized in diesel. They diagnosed problems to be the injection and fuel tank. So they drop fuel tank for cleaning and replace all new injectors and any fuel line needed replacement. Pick up my truck after all repair totaling over $5800. Took the truck out for a test drive with trailers after repair, I still have the same problem from beginning of the service when I took the truck for repair. So after all this repair, the problem was still not resolved and they asking for more repair of additional $1900. I do not believe in this shop to stand behind their words of confidence. It s only fixing problems using processing of elimination. They still didn t fix the problem from the source, so I highly would not refer anyone to this shop location. Sum it all up. I still of the same problem went in to the shop, problem was not solved. Very, very disappointed with this shop. Very unhappy customer.

  Brian Miller
4 years ago
I was having a hard time finding some delivery valve crush washers for my 1981 Mercedes 240D. I was referred through another shop to DIS and spoke with Anthony. Within minutes he had confirmed they had 3 in stock (cheap too, thankfully). Before shipping the washers, he even texted me the diagram to ensure we were talking about the correct part. Extremely impressed, and now I have a reliable source for future work for my classic car. Extremely happy!

  Brandan Seago
4 years ago
I had a set of Duramax injectors tested and balanced by Anthony. He went above and beyond to repair and make right what another company completely screwed up. Communication was outstanding from the time he received the injectors up to the time he shipped them. It was well worth the time and money. I would highly recommend this great business.

  Johnnie Johnson
2 years ago
Just experienced several different conversations with Anthony dealing withFinding a difficult part. I cannot say enough good things about these contacts to do him justice. His demeanor, prompt responses, all around strong desire to help solve my parts problem are unmatched and far above the norm. Just wish others involved in my situation were half as good as Anthony.

  Debra Bosch
a year ago
I broke down in front of their shop and the shop owner came out and helped me fix my brake caliper they were so very helpful and very knowledgeable

  Fernando Torres
3 years ago
I purchased a set of injectors for my Dodge 5.9 cummins from this place around 2 months ago. The quality on the injectors that were sold to me is impressive. I truly recommend this shop without hesitation. Price is fair and very helpful staff.

  gerais padilla
8 years ago
I've driven my 6.0 excursion for 2 weeks now, after having it worked on at Diesel Injection Service. And after going through 3 mechanics, I've finally found the doc for my truck. The service is the best around, and the same goes for their mechanics. I am more than pleased. I actually want to keep my 6.0 now. Thanks Donovan!

  Kim Moss
4 years ago
Diesel Injection Service in Colton, CA is top notch. They were kind, courteous and professional. I took my Chevy 2500HD to them for routine maintenance and a few repairs. They kindly dropped me off at my rv and picked me up once the repairs had been completed. I highly recommend them. They are affordable, kept me informed the whole way through, and they never attempted to sell me any unnecessary services.

  Lar E
5 years ago
I have had work done here over the 4 years my transport company has been in business. Donovan and the guys have always come thru for us. Small business like ours need qualified mechanics to keep us on the road. We have been thru some of the other local shop, and been very dissapointed. We will keep comming here. Thank you guys.

  Renee Elliott
2 years ago
Excellent service, professional, friendly, competitive prices. Best diesel shop in the area. Service is always provided with honesty and a smile. They treat you like family!

  ackrite11
3 years ago
I went in there to get a cold start valve for my lb7 duramax to figure out why my truck was losing prime. They offered to give advice to help out rather than make me wait for an appointment. The advice they gave worked and my truck is running like new after the injectors install! Thanks fellas for the awesome customer service! Semper Fi!

  Rey Molossus
7 years ago
Great service, brought my injector from a dt466 to have diagnosed, cleaned and o- rings replaced. All checked out good. Unfortunately I still can't figure out what's wrong with my truck. Highly recommend and worth the wait. Which was about 24hrs. Thanks guys.

  Damian DeLapp
10 years ago
These guys treated me great! My days of jacking around with those internet scam artist are over! I might pay a little more but the quality has always been there!!DamianCorona Ca,

  Juan Vasquez
3 years ago
Great service, great people. I brought in my 1990 Cummins for a ve pump issue they fixed it up truck feels better than new. I am very happy with their service.

  Charles Rivera
7 years ago
I love this shop!! Donovan is the best sails advisor there really cool and professional I highly recommend the shop to anybody who has a Dodge four-door Chevy diesel or a diesel of any kind for injector work these guys know what they're doing

  Adrian N
5 years ago
This place is the number one stop for anything related to diesel injection. I am a diesel mechanic myself who owns a Dodge Ram Cummins but was not too familiar with the injection system on my truck as I recently bought it. I had what I thought was a fuel knock. Well I took my truck over to their shop and Anthony at the front desk was great help. He came out to listen to the truck and confirmed that it sounded like a small fuel knock and that they could use their scanner to confirm it. Well, long story short I ended up buying a complete set of new Bosch injectors from them and installing them into my truck. The truck now runs beautifully and the idle has never sounded better. Diesel injection has awesome customer service, perfect quality products, and the knowledge / experience to back it all. On top of that they BEAT any online price I was able to find for new injectors by a mile! If you need anything diesel injection related don t go anywhere else, visit these guys!

  nate f
3 years ago
very professional shop the guys know their stuff there. I have sent numerous jobs to them and they have always got it done in time and did it right. And to top it off their Bosch and stanadyne certified

  Jonathon Sherwood
2 years ago
Place has gone above and beyond helping me out with my truck. Knowledgeable staff and always willing to help. Will definitely continue going through this place

  Curt Gonzales
7 years ago
A couple of weeks ago I replaced the fuel injectors in my 2003 Dodge Ram Cummins and although I followed all the directions exactly it ran worse than before. I took it to Diesel Injection and told Donavan my problem. I only had a short period of time to get it running before our vacation. Donavan had it torn down and the injectors bench tested and found that five out of six failed. I got them replaced under warranty and Diesel Injection got them installed that same day. Needless to say, I got my truck back running great and am now sitting under the awning of my fifth wheel by the beach having a cold one. My many thanks to Donavan and his crew, I can only hope that my past customers and former employees think half as well of me as I do of the service that I was given by this excellent establishment.Curt Gonzales

  Jack Peckham
7 years ago
Saved me over $3000 over dealer price. Donovan was a great help. My truck sounds and drives great.

  Melek Angelia
4 years ago
I highly recommend Diesel Machine shop. They are very professional. They run a clean and organized business with integrity. Can't beat the prices for their outstanding services.

  Roni Leber
5 years ago
I am recommending Diesel Injection to everyone I know that has a Diesel. I went there not knowing anything about diesel's. They took their time and helped me to understand the differences between gas and diesel. The staff is very knowledgeable. I'm so glad I went there and I will continue to as long as I have a diesel.

  matt lewis
6 years ago
Awesome clean facility. Donovan is very knowledgeable and helpful. Next time my truck breaks I'll be coming back!!