About Business
Poor Boys Diesel Performance and Repair is a leading Car Repair specialist serving the Phoenix, AZ, Phoenix area. They provide a wide variety of solutions, including Auto repair shop, Diesel engine repair service, Car repair and maintenance service, and other Car Repair tasks. Boasting a solid 4.8/5 rating from 143 verified reviews, their reputation precedes them. As a locally-owned business in Phoenix, AZ, they are deeply committed to providing honest and reliable Car Repair support to their neighbors. If you are in need of Car Repair assistance, we invite you to reach out to them today or visit their location in Phoenix, AZ.
Google Reviews
Ben Pobuda

★★★★★
4 months ago
Tim and Meredith are great - they’ve done $10k+ of work in my LB7 and it’s been a great experience. Tough to find honest diesel shops - Tim will give it to you straight, that’s rare and very appreciated.
Jonathon Bach

★★★★★
3 months ago
Tim and his whole shop have always done a phenomenal job working on my trucks. His quality of work and communication are best in the valley. Highly recommend.
Derek Lopez

★★★★★
10 months ago
This place truly exemplifies integrity. Hands down, the best experience I’ve had with a diesel shop. I brought in my 2020 F250, and they handled every concern I had with professionalism and care. Anthony at the front desk was outstanding, knowledgeable, patient, and able to answer all of my questions without hesitation. It’s rare to find a shop you can trust, but I’ve found mine. This will definitely be my go to from now on.
Bart Byers

★★★★★
5 months ago
I was treated like a king, my truck was too. If you like professional this is your shop. They know Super Duty’s!
Timothy Smith

★★★★★
11 months ago
After researching solid local places to work on my truck, I chose PBD. They were also able to schedule my truck in the next day! Even though there was a communication breakdown, Tim stepped up and made it right. This place has integrity! I highly recommend PBD for all your truck work!
timotei berindei

★★★★★
3 weeks ago
I just wanna say Poor Boy performance shop it’s legit I highly recommend this shop. They do good work, honest and they provide stay behind their Work.👍🏻
Charles Campbell

★★★
☆☆
a month ago
Initially was told it was a one day install and the price would be $1700-$1900 and they were very familiar with what I wanted. It took two full days and final price was $2145. I will let you draw your own conclusions.
Andrew Tuohy

★
☆☆☆☆
5 months ago
I had these guys do governor springs on my truck. It slipped timing almost immediately after leaving their shop because they didn’t secure the lock nut properly. Then, rather than calling a tow truck, they put a chain around the front frame crossmember to pull the truck back to their shop. This ripped the front frame crossmember in half. Then, instead of fixing that properly, it appears they had a blind child attempt to weld it back together. On the other hand, they did sell me on an airdog lift pump which… has failed multiple times, leaving the truck on the side of the road. I would hire them to maintain the vehicles of an enemy army. Edit: I’m glad they confirmed the date they worked on the truck. Here’s a photo, with date, showing the freshly “repaired” damage to the frame crossmember. I took this photo after they drove the truck back to my place, said “oh yeah we fixed the frame,” then jumped in another truck and drove off quickly before I even got underneath to look. Everything I said above is 100% accurate, it is no surprise they are trying to disclaim responsibility. There were two invoices, one for insurance work (the one they mentioned) and another for the performance “upgrades”.

Colby Mock

★★★★★
2 months ago
Had them install some Banks stuff on my 21' Cummins. Great communication and when there was a couple small issues with the Banks kits Tim stayed late after everyone was gone and the shop was closed to get it right that night. Definitely recommend.
Harry Callicotte

★★★★★
7 months ago
Great experience! 😊😊✅✅✅ Had issues on my way from CA to TX and was desperate to find a diesel mechanic in a place I had no idea where to look. Google reviews for Tim @ Poor Boy’s were comforting and informative. Tim got me back on the road quickly. I highly recommend Poor Boy’s Diesel 🍀🍀🍀🍀 they do great work! Thank you 😊🏆🏆🏆🏆🏆🏆
Dave Zych

★★★★★
4 months ago
Amazing shop and I can't recommend them enough. I had a shop local to me replace the turbo in my 6.7 Cummins. That new turbo blew 500 miles from home on a trip into AZ. Took it to Poor Boys Diesel and saw Tim, he worked with my local shop, replaced the turbo and fixed the exhaust system and got me back on the road in a couple days. They coordinated payment with my shop and I didn't have to pay a dime. Tim is a super good dude and the shop's communication was excellent. Can't recommend them enough.
Review Master

★★★★★
a month ago
My wife and I are looking at getting our first diesel and before we jumped in I called to ask what major issues they saw on the year and model we where looking at. They answered all my questions and made me feel much better about moving forward with buying the truck. We haven't used their service yet but if just the short phone call was any indication of how they run their business we will 100% be bring our new to us diesel here. Thank you again for putting my mind at ease and helping me show my wife this is the right truck to get.
Geno Bocardo

★★★★★
2 months ago
Always my go to place for diesel service and repair. Wouldn't take my 07 Classic anywhere else. They know and treat my truck like it's their own.
Jay Madera

★★★★★
Edited 3 weeks ago
Tim and the crew at Poor Boys Diesel consistently strive to provide exceptional service, ensuring a seamless experience. Given the inherent expense of repairs, it's refreshing to encounter a business that refrains from upselling, maintains transparency, and treats vehicles with meticulous care, regardless of whether it's a pavement princess, daily driver or a work truck. All questions are thoroughly addressed, both prior to and following service. The team demonstrates extreme attentiveness to client needs while maintaining a wholesome atmosphere, fostering a loyal customer base that will continue to return for future services for years to come. Make Poor Boys your one stop shop in the valley for all your rig needs, believe me you wont be disappointed. Thanks Tim and crew!
Mike

★★★★★
Edited 3 months ago
They did a Cummins swap & transmission upgrade, on my 2006 f550 Earthroamer. If you’ve ever looked under the hood in and Earthroamer you would know there are tons of mods and additional features on this truck. It was a huge complicated job, they did an amazing job, I had To go back a couple times, which I fully expected. There was no bitching they just handled it. Tim the owner is very fair in pricing, he was super cool and allowed me to do a few things I wanted To take care of in the camper side while it was there. I have Nothing at all bad to say. I would Definitely use this shop again for any more work.
Kraken Pools AZ

★★★★★
3 months ago
The guys at PBD are full of knowledge, good information overall customer service was top-notch. I’m very picky on where I take my truck, but I’m glad I made the decision to take it to them. I am going to be using them for now on for my Deisal preventative maintenance and any performance upgrades I met Tim today. I picked up my truck gave me good information and I’m glad he did. Thanks everybody at.PBD
Kevin Beck

★★★★★
3 months ago
Poorboys Diesel is the only place I’ll ever take my Cummins again. The work they do is insane and they go above and beyond in everything. The attention to detail is unmatched and it’ll be done correctly the first time guaranteed. Highly highly recommend for any build.
Paul

★★★★★
Edited 2 months ago
EXCELENT experience! Knowledgable technicians and flawless work on my 2022 Ram 3500. 1/15/26 Brought her back in for additional upgrades. EGT sensor, cold air intake, and transmission flush and added tranny cooler by-pass valve. I’ve been an aircraft technician for over 40 years and I know what “ attention to detail” requires. I would not hesitate to recommend PBD for ANY job, big or small and the best part is knowing the job is going to be done right the first time.
Alfonso P.

★★★★★
4 months ago
Outstanding Service and Customer Care These guys don’t mess around! As soon as I called and told them what was going on with my truck, they got me scheduled right away and ordered the parts immediately. The moment the parts arrived, they called me, set up a drop-off date, and within just a couple of days, everything was done. Their first inspection was thorough, and they went above and beyond to make sure everything was handled right. The whole experience—from start to finish—was smooth, professional, and honest. I really appreciate the hospitality and top-notch customer service. It’s proof that genuine customer service isn’t dead—Poor Boys Diesel still keeps it alive and well.
Dylan

★★★★★
3 months ago
I can’t say enough about how friendly and how knowledgeable the Poor Boy’s Diesel staff continues to be. I’ve had them install a comprehensive suspension system and have them do my regular maintenance on my Ram Diesel. Any questions I’ve asked, they have been able to explain throughly. They are thee Diesel shop in the PHX area. I give them 5 stars and recommend them every one I know.