North Texas Diesel, Automotive and Performance LLC

Nov 07, 2024

Nancy and her team took on my truck when the high pressure fuel pump that was starting to fail, and wasn't running right. When I got it back it was running good as new. I appreciate Nancy and her crew for having to go through the whole fuel system to get my truck running pretty awesome now.

Oct 07, 2024

*****STOP SEARCHING**** Nancy and her squad! Always get the job done. If you have been looking for a diesel shop that’s trustworthy, dependable and transparent this is the place. Nancy helped me get my 2001 F250 back on the road with a new transmission install. I have been back many times for small maintenance stuff but otherwise always willing to help and fair prices. Will never go anywhere else! You should do the same. Cory

Sep 07, 2024

All around great shop! I’ve had my truck in 3 other shops and none were as fast, professional, and great pricing.

Jul 07, 2024

If you are looking for diesel repair services contact Nancy. The technician Jeremy was able to diagnose our issues and had us back on the road in no time. Excellent service all around.

Jul 07, 2024

This shop is fantastic! Nancy is very nice and explained everything to us that our truck needed and worked with us on the price. Highly recommend and we will be back!

Jun 07, 2024

Awesome people! Honest and great to work with. Also, they’re super responsive. Highly recommend.

Feb 07, 2024

I had my 6.0 Ford in 5 shops and Jeremy and Nancy matter figured out why it was having problems then fixed them for the best price I could get!!! Anyone who doesn't think NTX Diesel is the best shop around you are out of your minds!!!

Feb 07, 2024

I paid $2,300 for complete rear axle bearing service. Rear axle pinion seal and speed sensor/ABS sensor seals were not installed properly. Rear axle lubricant leaked out during drive back to Illinois. Had to spend another $400 plus for the seals to be installed correctly upon returning. Attempts to contact the business and its owner, Nancy Matter, was met with negative results. Small claims lawsuit pending.

Feb 07, 2024

I wish I could give ZERO stars! Avoid Nancy and North Texas Diesel at all cost! I took my 06 5.9 Cummins truck to NTX Diesel 10/4/2021. I had and injector issue in cylinder 1 that caused the piston to melt. Nancy quoted me a decent price to rebuild my engine. I also asked for a new set of injectors, coolant bypass and to inspect my clutch since it would be accessible. I was told it would be about 4-6 weeks to get my truck back. Finally in late December I got my truck back (after a lot of excuses). They didn’t install the coolant bypass, they forgot. I left the shop and immediately noticed my clutch was slipping. I returned to the shop and the mechanic told me he wasn’t told to look at the clutch even though I had reminded Nancy multiple times. They did agree to change the clutch for the cost of parts only since they had overlooked the inspection. Once I got my truck back I decided to put some miles on it to break in the engine as I needed it for an upcoming trip. After about 100 miles the “new” clutch began to make noise. I returned the truck before Christmas to have it fixed again. I got the truck back in early January. Once again I decided to put miles on the truck to break it in, again, after about 50 miles the clutch began to make noise again. I returned the truck again for repairs which were completed by late January 2022. All I ever got from Nancy were excuses as to why my truck wasn’t completed on time or correct. Fast-forward to 7/2023. I was headed out of town with my camper and the truck decided to throw a couple of rods out of the side of the engine. This was 18 months and 30K miles after they rebuilt my engine. Naturally I decided to take my truck to a different shop to get rebuilt this time. The new shop tested my injectors since they had them out. Three of them didn’t meet the specs anymore. I called Nancy to see if she could provide the information I needed to get them replaced under warranty. When I made my initial call to Nancy she started right away with the excuses. She told me she was out of the office and could not look up my information that I should call the next morning. Over a two day period I have tried to call her 4-6 times, either going straight to voicemail or no answer. My new shop contacted the Bosch rep to see if he could help. When he called her she refused to help at all with the invoice for my injectors. Now I have to buy all new injectors instead of returning the bad ones through warranty. I’m beginning to wander if she even gave me new injectors when she rebuilt my engine. Avoid Nancy and North Texas Diesel at all cost!

Feb 07, 2024

No "BECAUSE you are a WOMAN" discounts here! This is an experience we had in 2020! But we still feel the same way! My wife took our Ford F-350 to a local shop and was given an Itemized estimate totalling over 10K back in 2020. I had read a lot about NorthTexas Diesel, Automotive and Performance LLC so we decided to get a second opinion. When my wife called to set up the second opinion with Nancy, she responded it sounds like you got the "Woman Discount" they both laughed knowing that it meant the shop was treating her like she didn't know anything. We took our truck to them and they diagnosed it. Not at all the same services needed as previously recommended and we even replaced 4 injectors instead of the 1 recommended. Our total bill out the door was $6700. The truck runs amazing! They took our truck that we paid $6K for and turned it into a $19K truck that we know will be sound for all of our hauling needs! I can't thank you enough for the piece of mind that you have given us knowing that we can take off in our truck and not worry!

Feb 07, 2024

North Texas Diesel, Automotive and Performance LLC offers amazing service at a very affordable price. They are honest and treat you like family! Jeremy and Nancy goout of their way to treat you right!

Feb 07, 2024

Really wish I could give more stars to this company. I was in town for a personal matter in the middle of roadtripping from AZ to MS. Ended up having an issue with the truck to where I couldn't continue the road trip. Had my niece and two dogs with me, no sleep for two days, and having just dealt with having to buy a new tire on the side of the road. I was not having a good time. Nancy immediately recognized the tone in my voice. She told me to bring the truck in as soon as I could, and she would get me in. Not only did she get a mech on it when I first pulled up, she conversed for 3 hours with me while they diagnosed and fixed my truck! It's so hard to fine genuinely good people these days. But if you are looking, this is definitely a shop filled with them! Fantastic service, time management, pricing, hospitality, and honesty. 100000% recommend.

Feb 07, 2024

They bulletproofed my f250 diesel, they did a fantastic job we highly recommend !!!!

Feb 07, 2024

WOW!!! If I could give 10 STARS I would! Nancy and Jeremy go over and above! We took our F350 to another shop and we played the "We think it is this" game to the tune of $1500.00. We found ourselves stranded with an Autistic child and 100 degree weather. We took it back to that shop and "they fixed it again" Drove it home, less than 50 miles and found ourselves stranded AGAIN! We called Nancy and she immediately responded with "There is an high pressure oil leak somewhere." We took it to NORTH TEXAS DIESEL, Automotive and Performance LLC and the very next day she called and with an explanation and an estimate that was less than what I had already paid the other shop. We have used this shop multiple times and everytime they have been fair, thorough, knowledgeable and reasonablly priced. I now live over an hour away from their shop, but after this experience, I would drive across Texas to take my truck to them! You can't go wrong with NORTH TEXAS DIESEL, Automotive and Performance LLC!!

Feb 07, 2023

Fantastic experience! I’m so happy to have found NTX Diesel. The only place I’ll be taking my truck in the future.

Feb 07, 2023

They took great care of me, I am very pleased with the level of customer service. Frequent updates, got the truck up and running properly again very quickly. I can’t thank them enough, truly went above and beyond.

Feb 07, 2023

Went above and beyond for my husbands new truck. We were so thankful to find an honest shop to get us fixed up as soon as possible and Nancy was very knowledgeable and caring. Will be using in the future!!

Feb 07, 2023

good service

Feb 07, 2022

Fair pricing and honest! Definitely my go to place from now on when in need of a diesel shop.

Feb 07, 2022

Great customer service. Always keeps me updated on any issues. Fixed on time, always runs great when i get it back. I recommend this shop whenever you need any work on your diesel pickup. Great mechanics are really hard to find.

Feb 07, 2022

I can’t say enough about this shop. I’ve used them twice for several issues and modifications on my 2005 Ford Excursion 6.0. They are fast, do great work, keep me updated, and prices are great. I will continue to be a customer for all my future needs. Thank you.

Feb 07, 2022

STAY Away!!!! Google wouldn't let me add my whole review as it was too long so see attached photos for complete review. I have the text and screen shoots to back my review as well. Update......... Since she is flat out lying I will now upload screen shoots of all text. Update: Google won't allow my images of screenshots of text. Building a site that will have all of it uploaded Soon! And everyone will be able to see lie after lie. Even the lies in her response to this review. You have aslo been reported to the BBB and will be reporting this business to the attorney general as well. You never said anthing about a diagnostic charge. The invoice dose not ethier. I will also be filing with my credit card company for fraudulent charges if I don't receive a full refund. My truck was dropped of March 30th. And took you all until April 2nd to tell me what was wrong then I paid the deposit on the April 2nd. At that time I was promised it would be completed by the 9th. And in multiple texts you told me it was on the lift as it was being worked on and would be fine in a couple days. Then on the 16th I found out you all haven't even stared as of yet. So your cough in more lies. As my truck was there 17days you all haven't even touched it! Second update..... It's only Defamation if it is not true. And I have evidence of everything. Your lies are in text messages. Aso proof you were ignoring my text until I contacted you with another number. And your in the wrong business of you don't even know the value of a 2015 ram 2500 loaded Laramie with 80k miles.

Feb 07, 2022

They were very helpful to us!.. Thank y’all!!

Feb 07, 2022

Very unprofessional won’t answer phone calls takes forever to get any info on the vehicle being worked on. 10/10 would take somewhere else.

Feb 07, 2021

NTX Diesel received our truck after All Makes next door decided they would rather have the experts look at our truck. We received a call the next day from NTX Diesel, and they stated what they thought the problem was, and what it would cost to fix. They were spot on, did what needed to be done, and at the quoted price. Actually had them do an oil change since we were driving to Chicago with the truck in 3 days time. We completed the round trip to Chicago with no issues. I know that when we need the next service work done on our 2004 Silverado, it will be traveling to NTX Diesel. Thanks for being a shop with integrity...not all stores are. Great customer service!

Feb 07, 2021

Nancy is great as well as her crew. They did a total rebuild of my 6.0l 2006 F250 engine. I wanted a total rebuild from bottom end up, they did it. Had 151k plus miles and both head gaskets had failed. Bulletproofed it, sent me pics of the progress for me. I requested all new components to upgrade/bulletproof, new sensors etc. Due to Covid machine shop was a little behind as well some of her technicians being out. The truck sounds great, runs great so far. Got to go thru the break in period before I really know how she runs so don't get behind me just pass me. Nancy, and NTX Diesel took care of me and my truck. These diesel trucks are expensive to repair, ill tell you that they are a great shop and have great prices. Saved me some money without cutting any corners! Thank you!

Feb 07, 2021

They r some good people do quality work

Feb 07, 2021

Will not go back!

Feb 07, 2020

I went in thinking I had one problem (an expensive problem). The staff there stopped what they were doing, took a look, and did a simple fix. They are honest and easy to do business with. I highly recommend them. I will definitely be going back for all of my Diesel engine work.

Feb 07, 2020

My 6 liter F250 was losing coolant and was becoming hard to start when warm, especially as summer heated up. When I called and talked to Nancy, she said they could diagnose the problem if I left the truck with them a day or so. Their tests showed bad head gaskets, probably from the head studs stretching...as OEM Ford studs do. She's very knowledgeable about this engine and we decided to replace the oil cooler, injector O-rings, standpipe, etc. as they will already have the engine torn down. I asked them to repair my ac as well, since it cycles hot sometimes, just after blowing cold the minute before. After putting the engine back together, they found a problem with a restriction in the ac lines and replaced the dryer. Everything works great now and the final bill was around $500 less than the first estimate. Very happy with their work and the great customer service they provide.

Feb 07, 2020

Nancy is a fantastic owner/mechanic!

Feb 07, 2020

This shop is the quintessential independent shop. You can expect very reasonable pricing with a personal touch. The techs are extremely knowledgeable and helpful. On multiple occasions, tech Jeremy has pulled away from a vehicle he was working on to come answer a question or perform a quick fix. The owner, Nancy, even took my calls after hours to help me and my family limp our way back from a road trip. I have never been up-charged, in fact, I’ve been given recommendations on work I can do myself to save money and time. One look at the shop and you can tell they are not hurting for work and there is no need to convince me to spend money on stuff I don’t need. All work has been performed within a very reasonable timeframe, with any delays being clearly communicated. Being able to text with the owner has been a great help since I have had my Excursion at the shop while I was working and couldn’t easily take calls. I definitely intend to use this team for as long I keep my 6.0.

Feb 07, 2020

Great place very friendly. Will go back & send people to them. Honest people

Feb 07, 2020

I’ve worked with NTX a few times now for various issues with my F250 6.7-L powerstroke. They are more than fair and do great work. They take pride in their work. I will not ever use another shop for my diesel.

Feb 07, 2020

Nancy and her crew rock! You can trust them for sure to go above and beyond.

Feb 07, 2020

Thank You Nancy and your team for taking your time and getting to the bottom of my turbo issue!!! 2 other shops told me I needed a new $2000.00 turbo. Nancy techs replaced a bad Turbo solenoid and got me back the road!!! Thank you!!! I was going to call you but since I am typing, you where right again I had my Allison transmission serviced with new filters and she shifts perfect again!!!

Feb 07, 2020

The folks are the real deal. They are upfront, honest, fair and pretty amazing human beings in general not to mention their amazing ability to properly fix your diesel! The customer service is top notch! If they are unable to answer your call, you get immediate texts and that was fantabulous! They have my business for life!!!