Dieselogic
reviews and complaints

HORRIBLE COMPANY to start off. They took my cores no problem, which were better than the injectors they had sent me. I had their injectors in my truck for 3 hours before 1 got stuck open, got them tested myself afterwords and 1 was stuck open 2 were leaking fuel into my oil out of the nozzle retaining nut and the rest didn’t pass emissions. Sent them back for warranty and they say “perfectly useable and functional” and now want me to pay about $400 to get them back and have them still not work. STAY AWAY FROM DIESELOGIC. get all your diesel products from Dans Diesel Performance (DDP) and save yourself a massive 3-6 month headache. All reviews on their website are 5 star but all the reviews every where else are 1 start with a whole paragraph on how bad their products are and their horrible customer service.

I sent them the vin# and all necessary info. They sent me the wrong turbo. I was told that the part# was correct and that a replacement would be identical. They held my money for over a month. I shipped back at my own expense and was finally credited less restocking fee. There are plenty of other diesel outfits out there so I will use someone else in the future.

I ordered a set of plugs, injector rings, valve covers, and injector cups for my 97 powerstroke. After receiving them 4 days late from Diesellogic, I asked to return them. Which I was able to at a cost of $53.00 out of my own pocket for shipping. After returning them I reached out 3 times as I had not received a refund after 21 days. When I finally did I was refunded $219.99 out of the $300 purchase price. I was informed this was because of a restocking fee of 10% and the original shipping cost of $35.00. So all in all it cost me $118 to return my purchase from them. They don’t have an option to leave a review on their website (of course). I am fine with paying return shipping at my own cost, my bad I guess for their FedEx taking 4 days extra. But to be charged all of the rest is simply poor customer service and greed on their end. I will never shop there again and I will repeatedly inform my diesel friends not to as well.

I installed a set of 7.3 injectors from Dieselogic in a customer's F550. They were well packaged with all orings and crush washers. The no core charge return was simple with the return slip already in the box. Truck runs perfect now

Been chasing down glow plugs issues since I purchased my 87 7.3 idi to the point I gave up for a while. Never could cold start w/out plugging in or ether. Ordered the Dieselogic glow plugs controller, now starts right up Everytime. Perfect!

customer service is great, they get back with you likidy-split. if they can?t find an answer, they go to someone who can. great shipping and core return standard. parts came when they said they would. just all around good experience. will be my number one go-to from now on.

Ordered a set of stock injectors and feed tubes for an 03 Dodge Cummins. Parts arrived on time, no issues installing, and everything is working great. Feed tubes are a newer version that have a slightly higher torque spec. Thanks Dieselogic for the great price and product. I would highly recommend.

I was skeptical when I saw the price but decided to give Dieselogic a try. The injectors were packaged very well and arrived before the estimated delivery date. They fit exactly as they were supposed to. The performance definitely exceeded my expectations. Will definitely recommend Dieselogic to anyone looking for quality parts!

Hello, I recently purchased reman injectors and vp44 pump. I had a problem with one injector but was able to fix it using the barrel or cover off the old one. After job was completed I'm happy with the performance and engines increased hp. Also the parts arrived way before I thought they would! Thank you for being prompt! Also great customer service! Pat D

Injectors work great! Truck is running better than it ever has before.This is the second time going in for injectors, as the last company I bought them from caused codes to be thrown relating to injectors not firing. Pulled out the faulty re manufactured injectors and put in these ones from Dieselogic and it runs great, no lights, no codes, no more headaches.Thank You

I used rebuilt injectors. I had a miss fire as well as a lot of black smoke under power and white smoke at cold idle. The injectors needed replacing. The injectors came quickly and we're packaged nicely. I installed the renewed nozzles and fired up the truck. No miss fire, no white smoke at idle and no black smoke under power. As a diesel tech I have install many renewed diesel fuel parts with very good results.

I ordered 6 fuel injectors for my Dodge 3500 Cummings. I was very surprised that I ordered them with no special shipping and I received my order the next day. Very very pleased with the products, customer service and sales staff we're absolutely amazing. Very happy with the all around experience working with Dieselogic and would recommend to anyone. Thanks Dieselogic u have a customer for life. Sincerely D. L Okeechobee, Florida

Received parts very quickly! Customer *** was helpful and responded to my question in no time. The parts were exactly what I needed and worked without any issues! When I sent the core back, I received the core money practically right away. I bought an injection pump, injectors, and glow plugs - overall the price was great and ordering parts online through dieselogic helped me get my truck back together with ease! Thank you!

I purchased numerous sets of injectors from Dieselogic. After multiple warranty claims and a frustrating experience with their claims process I returned a set for a refund which had never been installed. I want to take my business elsewhere. During this time I find out about a core return issue where my cores dont have the same id # as the injectors that were shipped and installed. A $90 charge is levied toward the refund of a different invoice. What a bunch of thieves. Never again will they have a chance to steal from me.

I used Dieselogic for the purchase of my truck turbo. It was fantastic. Customer *** was super helpful on answering my questions. There was no long waits. They have an awesome core reimbursement program. I was able to purchase the part, have it installed, and send back the old part. No hassles and if I needed any additional information I knew I could call and not have to wait on hold for multiple hours. Overall very happy with my experience. I definitely would recommend and will use in the future if need be.

Bad Products I bought a set of injectors from dieselogic for my *** LLY my mechanic installed them within 200 miles i called him telling him I got injector rattle had 500 miles when I took it back he ran all test had 3 bad ones he told them they needed to warranty the set of 8 and they said no send the worst on back theyll test and warranty now I got 734 miles on the set of injectors and got the same problem again I wouldnt by anything from this company there sending junk from my experience and reading on the ComplaintsBoard.com they do it all the time shop around before spending your money with dieselogic Im going to gave my mechanic pull all the injectors and send them back for a refund Ill update review but Id bet I wont see a refund theyll keep my money for the *** of the company to go on vacation cant talk to anyone over the phone you have to email some robot I even bought a extra injector so I got one on hand just in case

I purchased a set of LB7 duramax injectors at the beginning of February. The injectors came in and I was missing the high pressure fuel lines . Called and they apologized and sent them. No big deal. I installed all 8 new injectors and every single one of them had a balance rate higher than 7 and one was at 15. I spoke with a tech and he told me to ohm the injectors out.I ohmed them out and all Of the solinoids tested good. He then told me to send it back to let them test it . The conversation with the tech was over the course of 3-4 weeks cause of me not being able to get ahold of them. I started a warranty claim. They told me that the injector was working properly. Added on that the only issue with my old injectors were O rings worn out. No misfires no balance rates out just a worn O ring . There is nothing I can do about it cause it is there word against mine so the only thing I would like to do is for everyone that is thinking about ordering these injectors. Especially a LB7 injector set . Is to read the hundreds of reviews on them and hopefully you will read this review as well and not make the same mistake that I have made going. Through them . They also want 70 dollars almost to send me the injector that tested supposedly good back to me.