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Diesel Repair · Phoenix, AZ/Updated June 13, 2026

The 9 Best Diesel Repair Shops in Phoenix, AZ

Phoenix's diesel repair market is emerging, with a mix of established players and newer shops vying for your trust.

Editorially independent9 companies evaluated
cover story
★ Editor's ChoiceImpact Diesel
96Score
Latest update · June 13, 2026: Initial ranking published. 9 Phoenix-metro diesel repair businesses evaluated, top 9 ranked by Vetted Score.

In Phoenix, the diesel repair market is characterized by a blend of competition and a growing customer base. With only nine evaluated providers, most shops are still building their reputations, reflected in their review counts and ratings.

We ranked these businesses based on their Vetted Scores, which factor in customer feedback, service quality, and overall reliability. Our evaluation is updated monthly to ensure you receive the most accurate information, and no business pays for their placement in this list.

9diesel repair shops evaluated in Phoenix
4.47average rating across the field
928customer reviews analyzed

Cityvetted analysis of public Google review data, updated June 13, 2026.

How much does diesel repair cost in Phoenix? See the price breakdown →

Our top picks

At a glance · three categories
★ Editor's Choice
96Score

Impact Diesel

★★★★★4.9(128 reviews)

With a stellar rating of 4.9 from 128 reviews, Impact Diesel is a favorite among Phoenix drivers for their quick turnaround and expert diagnostics.

Read full review
Best Value
94Score

Poor Boys Diesel Performance and Repair

★★★★★4.8(260 reviews)

Poor Boys Diesel Performance and Repair holds a solid rating of 4.8 based on 260 reviews, making it a great option for budget-conscious customers.

Read full review
Most Reviewed
92Score

Strictly Diesel

★★★★★4.7(336 reviews)

With a rating of 4.7 from 336 reviews, Strictly Diesel is well-known for their reliable service and extensive experience in diesel repair.

Read full review

All 9, compared

Data as of June 13, 2026
BusinessVetted ScoreGoogle ratingReviewsBest for
1
Impact Diesel
Impact Diesel
Editor's Choice
96Score
4.9★★★★★
128Comprehensive diesel repairs
2
94Score
4.8★★★★★
260Budget-friendly performance upgrades
3
Strictly Diesel
Strictly Diesel
Most Reviewed
92Score
4.7★★★★★
336Reliable and experienced diesel repairs
4
82Score
5.0★★★★★
25Emergency on-site repairs
5
80Score
4.5★★★★★
60Friendly and approachable service
6
80Score
4.5★★★★★
43Customer-focused service
7
80Score
4.5★★★★★
26Quick and efficient repairs
8
78Score
3.4★★★★★
10Mobile diesel repair services
9
78Score
3.9★★★★★
40Convenient mobile repairs
Methodology

How we evaluated all 9 diesel repair shops.

To determine the best diesel repair shops in Phoenix, we analyzed a range of factors including customer ratings, number of reviews, and service offerings. Each business was assessed on its ability to meet the specific needs of diesel vehicle owners in the area.

We prioritize transparency and integrity in our evaluations. The scores you see reflect genuine customer experiences, and we do not accept payments for higher rankings, ensuring an unbiased selection of providers.

The Vetted Score: six weighted factors

Customer sentiment25%
Rating quality20%
Review volume & velocity20%
Website trust signals15%
Service breadth10%
Business longevity10%

Sentiment is measured by AI analysis of review text, recency-weighted, with verified-pattern checks to discount suspicious review bursts.

Full reviews

The rankings · in order
1
★ Editor's Choice

Impact Diesel

★★★★★4.9(128 reviews)
96Score

With a stellar rating of 4.9 from 128 reviews, Impact Diesel is a favorite among Phoenix drivers for their quick turnaround and expert diagnostics. Customers frequently commend their knowledgeable staff who tackle everything from minor repairs to major overhauls. However, availability can be limited due to their popularity, so calling ahead is a must.

Pros

  • Expert diagnostics
  • Quick turnaround
  • Knowledgeable staff

Cons

  • Limited availability
Best forComprehensive diesel repairs
Service areaPhoenix, AZ
Typical pricing$100 to $200 per hour
2
Best Value

Poor Boys Diesel Performance and Repair

★★★★★4.8(260 reviews)
94Score

Poor Boys Diesel Performance and Repair holds a solid rating of 4.8 based on 260 reviews, making it a great option for budget-conscious customers. Many praise their fair pricing and high-quality work, especially for performance upgrades. However, some reviews mention longer wait times during peak hours, so plan accordingly. A review base that deep is hard to game, and the score barely moves across it, which is the clearest consistency signal we track. Most of what reviewers hire it for is budget-friendly performance upgrades. It serves Phoenix, AZ, with $80 to $150 per hour pricing, and the honest trade-offs are longer wait times during peak hours.

Pros

  • Fair pricing
  • High-quality work
  • Good for performance upgrades

Cons

  • Longer wait times during peak hours
Best forBudget-friendly performance upgrades
Service areaPhoenix, AZ
Typical pricing$80 to $150 per hour
3
Most Reviewed

Strictly Diesel

★★★★★4.7(336 reviews)
92Score

With a rating of 4.7 from 336 reviews, Strictly Diesel is well-known for their reliable service and extensive experience in diesel repair. Customers appreciate their transparency and thorough explanations of repairs. However, while they offer a wide range of services, some report that pricing can be on the higher side compared to competitors.

Pros

  • Reliable service
  • Extensive experience
  • Transparent pricing

Cons

  • Higher pricing compared to competitors
Best forReliable and experienced diesel repairs
Service areaPhoenix, AZ
Typical pricing$90 to $180 per hour
4

AZ SEMI-DIESEL TRUCK REPAIR ( on-site repair & road service )

★★★★★5.0(25 reviews)
82Score

AZ SEMI-DIESEL TRUCK REPAIR has a perfect rating of 5.0 from 25 reviews, specializing in on-site repairs and road service. Customers appreciate their prompt responses and convenience, especially for emergency repairs. However, the thin review base makes them a bit unproven for larger jobs. The review base is still thin, so we read the rating as promising rather than proven and weighted it accordingly. Most of what reviewers hire it for is emergency on-site repairs. It serves Phoenix, AZ, with $120 to $220 per hour pricing, and the honest trade-offs are thin review base.

Pros

  • On-site convenience
  • Prompt service

Cons

  • Thin review base
Best forEmergency on-site repairs
Service areaPhoenix, AZ
Typical pricing$120 to $220 per hour
5

Pro Diesel LLC

★★★★★4.5(60 reviews)
80Score

Pro Diesel LLC has a rating of 4.5 from 60 reviews, known for their friendly service and solid repairs. Many customers highlight their willingness to answer questions and provide advice. However, their limited number of reviews suggests a need for further trust-building. The sample is modest but steady, with reviewers describing the same strengths instead of one-off praise. Most of what reviewers hire it for is friendly and approachable service. It serves Phoenix, AZ, with $90 to $170 per hour pricing, and the honest trade-offs are limited number of reviews.

Pros

  • Friendly service
  • Responsive staff

Cons

  • Limited number of reviews
Best forFriendly and approachable service
Service areaPhoenix, AZ
Typical pricing$90 to $170 per hour
6

Dynamic Diesel Repair Inc

★★★★★4.5(43 reviews)
80Score

Dynamic Diesel Repair Inc has a rating of 4.5 from 43 reviews, offering a range of repair services with a focus on customer satisfaction. Reviewers appreciate their detailed work and follow-up. However, some have noted that their shop can get busy, leading to longer wait times. The sample is modest but steady, with reviewers describing the same strengths instead of one-off praise. Most of what reviewers hire it for is customer-focused service. It serves Phoenix, AZ, with $85 to $160 per hour pricing, and the honest trade-offs are can get busy leading to wait times.

Pros

  • Focus on customer satisfaction
  • Detailed work

Cons

  • Can get busy leading to wait times
Best forCustomer-focused service
Service areaPhoenix, AZ
Typical pricing$85 to $160 per hour
7

Phoenix Diesel Repair

★★★★★4.5(26 reviews)
80Score

Phoenix Diesel Repair has a rating of 4.5 from 26 reviews, recognized for their quick service and knowledgeable technicians. Customers often mention the ease of scheduling appointments. However, their smaller review base raises some questions about consistency in service. The review base is still thin, so we read the rating as promising rather than proven and weighted it accordingly. Most of what reviewers hire it for is quick and efficient repairs. It serves Phoenix, AZ, with $90 to $175 per hour pricing, and the honest trade-offs are smaller review base.

Pros

  • Quick service
  • Knowledgeable technicians

Cons

  • Smaller review base
Best forQuick and efficient repairs
Service areaPhoenix, AZ
Typical pricing$90 to $175 per hour
8

Sky MG Road Service Diesel Repair

★★★★★3.4(10 reviews)
78Score

Sky MG Road Service Diesel Repair has a rating of 3.4 from 10 reviews, providing mobile repair services. While some customers appreciate their flexibility, many have noted inconsistent service quality. The limited number of reviews makes it hard to gauge their reliability overall. The review base is still thin, so we read the rating as promising rather than proven and weighted it accordingly. Most of what reviewers hire it for is mobile diesel repair services. It serves Phoenix, AZ, with $100 to $180 per hour pricing, and the honest trade-offs are inconsistent service quality and thin review base.

Pros

  • Mobile service
  • Flexible scheduling

Cons

  • Inconsistent service quality
  • Thin review base
Best forMobile diesel repair services
Service areaPhoenix, AZ
Typical pricing$100 to $180 per hour
9
78Score

Phoenix Mobile Diesel Truck And Trailer Repair holds a rating of 3.9 from 40 reviews, known for their convenience and ability to handle various repairs. Customers often praise their responsiveness. However, some reviews indicate that service can be slow, particularly during busy times. The sample is modest but steady, with reviewers describing the same strengths instead of one-off praise. Most of what reviewers hire it for is convenient mobile repairs. It serves Phoenix, AZ, with $90 to $160 per hour pricing, and the honest trade-offs are service can be slow during busy times.

Pros

  • Convenient mobile service
  • Responsive team

Cons

  • Service can be slow during busy times
Best forConvenient mobile repairs
Service areaPhoenix, AZ
Typical pricing$90 to $160 per hour
Before you book

How to choose a diesel repair shop in Phoenix

Selecting the right diesel repair shop in Phoenix involves considering factors like service area, response time, and state licensing. Each of these elements can greatly influence your experience and the quality of service you receive.

Check Service Area

Make sure the shop can accommodate your specific location, especially if you need on-site repairs.

Response Time

Evaluate how quickly the shop can respond to service requests, particularly in emergencies.

State Licensing

Verify that the shop is licensed and follows Arizona regulations for diesel repair services.

What it costs

What diesel repair costs in Phoenix

Understanding the cost of diesel repair services in Phoenix can help you budget effectively. Prices can vary based on the complexity of the repair and the shop's reputation.

Basic Maintenance$100 to $300 for routine checks and minor fixes.
Diagnostic Services$50 to $150 for diagnostics to identify issues.
Major Repairs$300 to $1,000 for significant repairs or part replacements.
On-Site Services$150 to $500 depending on the service and location.

Frequently asked questions

How much does diesel repair cost in Phoenix?

Prices for diesel repair in Phoenix typically range from $100 to $250 per hour, depending on the service needed and the complexity of the repair.

What factors should I consider when choosing a diesel repair shop?

Consider the shop's ratings, number of reviews, and specific services offered. Shops with a higher volume of reviews generally indicate a more established reputation.

How often is this ranking updated?

We re-run the full analysis monthly with fresh review data. Last updated June 13, 2026.

Our verdict

For most Phoenix diesel truck owners: <Editor's Choice name>

If you're looking for dependable diesel repair in Phoenix, Impact Diesel is your best bet. With a stellar 4.9 rating from 128 reviews, they cater to those who prioritize quality and reliability. For heavier-duty needs or performance enhancements, Poor Boys Diesel Performance and Repair at 4.8 stars from 260 reviews is the ideal choice. Their reputation for solid performance work is well-established. Finally, if you need on-site assistance, AZ SEMI-DIESEL TRUCK REPAIR, boasting a perfect 5.0 rating from 25 reviews, can come to you, making them perfect for emergencies or convenience. Choose based on your specific needs and situation, and you won't be disappointed.