DIESEL REPAIR
In addition to our general auto repair services, we have mechanics specially trained in diesel maintenance and repair.
$25 OFF REPAIRS
$25 off repairs totaling $150 or more in labor expenses. One coupon per visit. Not valid with other offer or special. Coupon must be presented in advance.
Call to Redeem & Schedule Your Appointment
Diesel engines have some powerful benefits and can be a great asset to a vehicle. However, because diesel engines are significantly different from regular gasoline engines, you will want to make sure to use a specialized diesel mechanic to service and repair your diesel engine. Whether you are looking to service a larger truck, a pickup, a fleet vehicle, or even a passenger vehicle or other machinery, Clegg Auto has the diesel expertise to help meet your needs. Here are the basics of what you need to know about diesel maintenance and repair and how our diesel mechanics at Clegg Auto can help you keep your diesel engine running in top condition.
Some of the most common diesel problems and repairs include:
- Oxidized oil
- Humidity Reactions
- Hard Starting
- Lack of Power
- Replacing defective glow plugs
- Engine knocking
- Wrong weight viscosity
- Faulty Lead/Acid Storage batteries
- Overly noisy engines
- Discolored smoke from the exhaust.
Most diesel engine problems can also be commonly diagnosed through the color of smoke from the exhaust. Black smoke often indicates an incorrect fuel to air ratio and can be caused by many things such as faulty injectors, injector pumps, bad air filters, a broken EGR valve, or even a turbocharger issue. Blue smoke means that the engine is burning motor oil, usually caused by a leak in the engine. This can sometimes be a turbocharger issue or a problem with valves or an oil filter. Lastly, white smoke indicates that fuel isn’t being burned property within the engine either due to too much fuel being injected or not enough heat or compression.
Customer Reviews
Google Rating
4.8
Based on 1397 reviews
Clegg Auto Spanish Fork
4.8
Ashton Pigsley
15:08 28 Sep 23
I had a fantastic experience. As a person who hates getting car repairs done, this was a very smooth process. Each interaction was super nice and amazing. Will definitely be going back again for future car needs.
Kristian Freeman
19:03 15 Sep 23
I highly recommend Clegg Auto in Spanish Fork! They gave me a competitive quote, they got my van in very quickly, they were able to get my part and get the work done in a matter of hours, and Corttnee was so kind and helped me to get home while I waited for the repair to be done. They've got a customer for life because they fixed what was wrong and the customer service was great!
Eva M
15:46 15 Sep 23
Clegg auto is great! The entire staff was so nice and made my experience really great. They squeezed me in during the afternoon and I was only there for maybe an hour. They were super fast and efficient. Definitely will be going back for any other car things in the future!
Brandon Johnson
16:29 11 Sep 23
The staff has been very friendly and great to work with. Also, the process for receiving estimates and approving or declining work was simple and a positive user experience. And the mechanics are very knowledgeable.
Kelsey Chappell
12:26 31 Aug 23
Clegg’s always does a great job with my car. The employees are friendly and helpful. The service is good quality and they’re pretty quick as well.
CandlexLTB
21:20 25 Aug 23
I needed a diagnostic for a sound my car was making, and they were able to schedule the appointment and fix the problem in under 24 hours. Very fast and professional work. They can be a little pricey, but good, reliable service is worth the extra cash.
shannon
15:05 24 Aug 23
I’ve taken 2 different cars to Clegg recently and they were awesome. Honest, kind and affordable. I’ll always go to them for my car needs.
Nicole Carter
22:28 22 Aug 23
Stopped in to get help with getting a couple rusty screws removed from my rear license plate. Weston took the time to take my tail gate apart to get them out and then put my new plate on with nice new bolts. I didn’t even have an appointment. I’m so impressed with the customer service. Everyone was so friendly and helpful in the office too. Cleggs Auto staff in Spanish Fork went above and beyond to help me. I am so grateful and will definitely be back!!
chalet houtz
20:57 16 Aug 23
I had a flat and they were able to get me in same morning! very nice and put on my spare no charge so I could go to another store to get new tires. Would go back for sure!
McKell Reeves
18:52 16 Aug 23
Clegg's always takes the best care to make sure my car gets fixed promptly. They have a great crew that takes the time to listen and explain all the recommended repairs.
Arlene Combs
04:12 28 Jul 23
Really professional, friendly, work quickly to do the evaluation of your vehicles problems. I really loved how they do their work estimates! They break each part down, tell you about it, then email it to you to allow you to choose to "authorize" each part of the proposed repairs/actions, or not. You check the boxes and send it back to them. You get to be involved every step of the way. Costs are fair, happy with their work. Thanks, Clegg's!!
Noah King
02:42 10 Jul 23
We were passing through Spanish Fork yesterday (Saturday) on a cross-country trip, stopped in town to gas up and go, when our car wouldn't re-start. After help from some amazing locals, we had it towed to Clegg's, assuming it wouldn't get looked at until Monday morning. The general manager, Glen, saw our post for help on Facebook, and volunteered to come down, at 9pm on a Saturday(!), to take a look at it for us. He had us up and running again in an hour. Incredible service, incredible shop. Cannot recommend enough!read more
Glen Davis
13:43 29 Jun 23
I used Clegg's, Spanish Fork location, for an emissions test. I had an appointment and they were extremely prompt. Emissions test lasted less than 15 minutes. The staff is extremely friendly..
Jess K
17:11 22 Jun 23
Took my car in for a leak and to check my motor mounts. I was quoted for the service before hand but was told to wait for the final call before I paid for anything. When the mechanic couldn’t find anything to do with a leak and my motor mounts were good, they told me that they were NOT going to charge me a thing! They did find that my battery connection were needing to be cleaned and offered to do that. They cleaned them for a small fee and I was on my way. Super helpful and they were great to work with.read more
Ross Wolfley
16:24 12 Jun 23
I needed some diagnostics and exhaust system work completed on my Ram 1500. They did a great job kept me fully informed all the way through the repair. I was very pleased with the work and will continue to use them!
Christian Beesley
14:38 09 Jun 23
The engine in my 2011 Ford escape was running rough. Cleggs was able to find the issue, communicate the needed repair, and fix it is such short time. Excellent service providers!
Melissa Jenkins
03:05 04 May 23
These guys were great! They were really friendly and understanding as to what i was needing. They got back to be with my estimate super fast and had the car fixed the same day. They even gave me a loaner car while my car was being fixed. I would recommend to anyone looking for great service.
Andrea Lords
20:49 27 Mar 23
Bre was very friendly and kind. She was wonderful to work with and showed great care and compassion. The work on the car was fantastic. They gave me a courtesy loaner vehicle to use while my car was being repaired and found me a wonderful tow company to get my broken down vehicle towed to their garage. It was a very good experience and they helped me manage my stress around the car and cost.
Julie Edwards
15:23 23 Feb 23
My experience with Clegg was nothing short of amazing. They were quick to get my car in and figured out what needed to happen to fix my car. They kept me informed and helped me get my car where it needed to be. I will definitely use them again.
Diane N
17:11 02 Feb 23
Took my truck in to get a crater (not a dent but a crater) out of my tailgate and near the passenger rear door. Karlee called me every week to give me an update and estimated window of when I can expect it to be done. When I dropped of my truck they were upfront with the price and what to expect along the way. When I got my truck back it looked better than when I first got it! Thank you Clegg Auto for taking such good care of me and my truck!! They even cleaned my windows too! (:
Abby Anderson
18:21 01 Feb 23
Just had another service done by Clegg's. As always they took great care of us. Besides their honesty they have a courteous attitude. Hard to find these days.
Chad Cross
16:29 09 Dec 22
My Family was on a road trip and traveling through Utah on vacation when our Truck developed a concerning oil leak. We stopped by the local dealer who told us they were unable to help us out. That’s when we found Clegg Auto! They got our truck into the shop, drove to pick up the parts, and we were back on the road that day! It was a great feeling finding such friendly people so far from home who were willing to help us get back to our vacation. I can’t thank them enough! I wish we had a shop near us that operates at the level of professionalism that Clegg does. You are all outstanding people and I enjoyed visiting with you all. You made a stressful situation better and saved our trip. Thank you!read more
Nikki Leiter
03:47 09 Dec 22
I actually hit a mountain lion coming down hwy 6 from Helper. It messed my car up pretty good. Cleggs did such a fantastic job keeping me updated through the whole process. They were amazing. My car looks and runs fantastic!! I would recommend them to everyone.
Tiffany McLean
16:39 10 Nov 22
I have been to multiple Cleggs locations and this is by far the best. The staff were extremely welcoming and helpful. The environment was happy and bright even though it was a snowy cold day outside. The people that work there really enjoy their job and making their customers feel welcome.
Justin Hutchins
18:21 27 Oct 22
Clegg was awesome! I took my Ford F-150 in and had a few things diagnosed and repaired. They were thorough in examining the sound my truck was making and offered some solutions that were honest and fair. They didn’t try to sell me on things I didn’t need and even showed me the problem areas out in the repair bay of the garage. You have a customer for life! Thank you!
Johan Stoop
15:16 20 Oct 22
Mark and the team are great to work with. I took my son’s 2001 truck in for inspection to see what can be done to save it. They took the time to walk me through and explain in detail the inspection process and results and then the same with repairs. Did not need to scrap the truck and at a very fair price my son now have a perfectly running truck again! Will for sure return with any future repair and service work for my vehicles.
Daniel Harding
15:13 17 Oct 22
These days it is wonderful to meet a group of mechanics that will go out of their way to help a stranded customer. They sure did save our vacation when they repaired an electrical issue for us.And, they wouldn’t even take the $$ that I offered. When was the last time you experienced that kind of service?I give them 5 stars and and a BIG two thumbs up!!
Tyler Gill
22:39 14 Oct 22
From start to finish Clegg Auto Repair was fantastic! I took my car in for an alignment and to have my front tires replaced. They did a great job! They were honest, easy to work with and my car runs smoother than it ever has. A big thanks to Clegg I will definitely be back again.
Karlee Kaighn
15:20 14 Sep 22
Clegg is the best! Their tow truck driver was clean and quick, and drove all the way up to Salt Lake to pick up our vehicle after the brakes went out. Then, once it was at the shop, they did a thorough evaluation and found the problem. They even had a second technician double check everything before moving forward with work. They did an amazing job at communicating the progress of my vehicle with me and they were open and honest about everything. I will be using them again and again!
Weston Clark
15:04 03 Sep 22
They did a great job! The were fast ,efficient , thorough and friendly. My truck drives so much better thank you so much I will definitely bring my truck back here for repairs
Conner Richardson
15:05 02 Sep 22
Great customer service here! Took a car I was looking at buying in to get it checked over, they had it in and out in 15 minutes! They were super friendly and helpful in giving me the correct information and help I needed!
B Binkerd
12:09 17 Aug 22
My initial contact with Clegg Auto was for an oil change for my car. I made an appointment for the same day I called and took the car in. The service was great, the staff I interacted with were all very friendly and what really impressed my wife was the waiting area. She's the one who usually takes the cars for service and waits for them to be finished. She was so excited about the seating and overall cleanliness of the waiting area. I found the price reasonable for the service and the oil change was completed (along with a general inspection of the car) in a very short time. I'll definitely be coming back here for more service on the cars.read more
Rex McRee
02:16 01 Aug 22
Clegg Auto has fantastic leadership and impeccable workmanship. This outstanding leadership permeates the whole team. The leader is friendly, personable, empathetic and honest. Tim is an outstanding leadership example and he has lead his complete team to the same end and with that he has built a business the community of Spanish Fork can be very proud to have in their neighborhood. These folks have no idea who we are, they knew we arrived from out of town and still treated us like family or more likely just how they would like to be treated when in a similar situation. The result is quick honest thorough diagnostic and repair of a vehicle on a cross country trip. If I lived in the area this is the shop I would use for all of my vehicle maintenance and repair. Thank you for the outstanding service - Rex and Kelsiread more
joe wayman
01:16 07 Jul 22
Super nice honest people. Communication was great. My A/C is better then new. Great price.I will definitely recommend them to anyone I know who needs automobile repairs
Voyage Direct Primary Care
14:59 01 Jul 22
Clegg Auto is “next-level” car care. I took my truck in and they were able to get it diagnosed that day and treated with the next couple of days. They kept me updated every step of the way and reached out with updates. Very efficient and very good care!
Shay Hansen
19:03 27 Jun 22
From beginning to end of process by far the best! Communication was amazing! They kept me in loop to know what the status was of repairs. Fair pricing!! Will recommend to all was amazing experience. Thank you!!!!
Anna Palmer
01:17 31 Mar 22
Love this place! It was my first time going there and i’ll never go anywhere else! it genuinely felt like they cared and wanted to help me and my car runs better than ever! they kept me updated on what they were fixing and they have great prices! 10/10 recommend!
Aylín López Villalobos
16:21 22 Feb 22
They were really great! We trust them to do our car maintenance because a few years back our dealer said we needed new break pads so we took it to cleggs and they checked it out and they told us we didn’t need them replaced! Super honest people and I love that. I dropped the car off and they were able to give me a ride home and were amazing at communicating. Definitely will keep taking my vehicles here
Kelsey Carpenter
16:58 09 Feb 22
Went in to get my brake pads replaced and I’m a few minutes they called me and told me that my brake pads looked great that they just needed fluid. I appreciate their honesty and for not trying to rip me off like other places have done. I would highly recommend
Aaron Chournos
16:36 09 Feb 22
Brought in my Subaru, which was purchased at auto source a few years ago, with a variety of issues. WARNING out there to those who may be looking at purchasing a vehicle from auto source with a wrecked title.I asked the team at Clegg Auto auto to find the problems that were causing all kinds of noise and vibrations on the front end of the car. They communicated and every step with photos and explanations. In the end, they returned my Subaru to me running better than it has in a couple of years. More quiet, more powerful, and no more vibrations.Of course, they didn’t do it for free. Their clear and proactive communication was excellent. They also found a $100 solution for an $800 repair. I salute the team at Clegg. For recommendations.read more
Tervarous Ellis
03:23 23 Nov 21
A&E Trucking was treated like royalty from the beginning to the end. Outstanding customer service and excellent communication. I want tobsend a personal thank you to Tim and Mike and everyone of there techs. They went above and beyond to get me back up and running. So thank you from the me personally and the the entire A&E Trucking family much love.
Avery Bishop
23:45 20 Sep 21
LOVE this business! they fixed my car so fast and were super helpful, accommodating, and did everything they could to make sure customers got the fixes they needed. Sam fixed my car and it was clear he knew exactly what he was doing and was so happy to help and kind. love their business and they do great work. Would absolutely recommend to anyone needing body work done on their car. Thank you clegg auto!!!
Todd Milne
16:31 17 Sep 21
These guy are AMAZING!!I had my truck at a different shop and really felt like I was getting the run around. I was told the repairs on my truck would be $6800 to $11000. When Clegg Auto got my truck they looked at it and called me to talk about what they had found. Turns out the shop that had it earlier had put too much oil in the truck casing it to leak. Clegg Auto changed my oil and told me to come back in a week or two if it was still leaking oil. My problem was solved with a simple diagnostic, phone call and an oil change (which I still need to pay for. They told me to see what happens and then come back….who does that these days?!).I value honesty above all else. These guys are as honest as they come. They very easily could have done the more expensive repairs and I would have been none the wiser. THANK YOU FOR YOUR HONESTY AND INTEGRITY!!!!I recommend them to anyone looking for a great auto repair shop!read more
Paul Ashby
15:16 02 Sep 21
My 1996 Toyota Avalon, which has 300K+ miles on it has been running a little hot, and the driver side Windows regulator and motor quit working so I had a window that was down all the time. They gave their initial estimate to fix the window but they were aware of my financial situation so they worked with me and helped me find ways to locate a regulator and motor and then worked a plan for me that saved me a lot of money. They were willing to let my car stay on their lot until the issues were fixed, which was a huge help! Dave, who worked on my car kept me posted via text almost every day, which was extremely helpful. Laramie and Tim were also great to work with in helping me find options that could help me keep my old car from heading to the car graveyard just yet. My car is running great now and my pocket book wasn’t beat up in the process! Clegg Auto is amazing and I will always recommend my friends, family, and anyone who needs car repairs to go to them. They are a class act!!read more
Linda Baldwin
19:58 13 Aug 21
We had our fuel filter module go out. Clegg Auto diagnosed it and got it repaired very quickly and economical. Very pleased with their care. We are from out of town was in Spanish Fork for a wedding celebration. Very nerve racking when you have no idea what’s going on with your vehicle or who the mechanic is working on it. These people were great, professional, up front with costs and quick to squeeze us in with their scheduled repairs. Would recommend them. And a big thanks for taking care of us.read more
Raquel Laking
15:08 12 Aug 21
Quick, easy, efficient service. We like Clegg and their prices and how honest they are when it comes to repairs needed and the best way to go about them. The mechanics were very nice and let us know of any issues and did not try to pressure us into getting anything extra. They have a nice waiting room as well.
Shalyn Adams
16:18 28 Jul 21
I have gone here sence I started driving and I will keep going. They are always very helpful honest and friendly. They go over what they are doing so your not left in the dark. I loved Steve sad to see him go but the new manager is just as good. Always appreciate the team there.
Spencer Flint
15:13 21 Jul 21
Very happy with Clegg. I love that I don’t need to worry that I’m being overcharged. If they run into any trouble while working on my car they call and keep me updated before continuing. Definitely going to continue using them for my car service.
Phill Crawford
16:59 12 Jul 21
Clegg’s was amazing. I walked in, they were slammed and said they would work me in the next couple of days. They called that afternoon and told me what was happening and what needed to be done. Laramie gave me all the options and what she recommended and asked what I wanted to do, she gave no pressure one way or the other. Very good experience, I don’t like to pay for a mechanic because I’m pretty handy but rest assured I will be back for any future repairs.
Travis Raff
15:21 10 Jun 21
My car’s AC didn’t work, so I took it in and they said the condenser had a hole in it. They replaced the condenser and charged it, and now it cools like a fridge! They also did some work on the sway bar and I’ve noticed my handling around corners is better now. Everyone was friendly, and it didn’t cost me an arm and a leg. I also received timely shuttle rides to and from the shop. Clegg knows what they’re doing!
Chris Bosselman
15:36 24 May 21
We developed brake trouble on our way from Wyoming to Utah. We had a commitment later that day that we could not miss. They were able to perform the brake replacement and accommodate the needs of our adaptive vehicle in a very gracious manner. It was obvious that they went out of their way to accommodate both our schedule and our unique vehicle needs. Excellent service and very courteous staff! I would recommend them to anyone.
Jessica Grace Crandall
18:02 31 Mar 21
I come here for my car maintenance on my Hyundai, and I know that I'm always getting a good value. I drive a lot of miles on my car and they are always so good to bring up concerns but speak to me honestly about what it takes to do maintenance repairs. One time I noticed my car was leaking antifreeze fluid, so I took it into the shop and they came back out a quick 5 mins later and said "no charge!" What? really? Yes, it was just the gasket head needed to be adjusted. As a non-car person non-handy person there would have been no way for me to know even if they had decided to charge me $200, so I appreciate their honesty.read more
Hal W
16:27 05 Feb 21
Clegg was recommended by my tow driver. I am very happy with the professional services provided. There was close contact & reasonable planning for the repairs. I didn't ask for prioritizing repairs but they seemed to know exactly what I was thinking and answered it right away. My vehicle started and drove without any problems and I am grateful that Clegg Auto is where my van was taken. I am looking forward to Clegg Auto providing the automotive and service repairs and maintenance for my vehicle. Yes it is a drive to get there but I know it will be done right. The employees were extremely friendly. It was almost like I was having my van worked on by friends.read more
Jared Burton
19:09 31 Jan 21
I had a great experience here. The customer service was awesome. They were welcoming and listened to me. This is what people want in a mechanic shop! Plus they worked hard and quickly and stayed on quote. Thanks for being good.
George Bayles
15:06 08 Oct 20
They were courteous, patient, and friendly. The girls in the office were especially so. Clint couldn’t have been more accommodating. It was a refreshing experience.
Ryan Spaulding
15:04 19 Sep 20
Very impressed with these guys. Excellent service. Best communication I have EVER seen from an auto shop, and final bill came in lower than anticipated. Will be back in the future!
Mary Ann Miller
17:04 03 Sep 20
Service was great! Laramie was very friendly and went out of her way to make me feel like a valued customer. I will go back.
