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October 2023 by Glenn Gregory
My 6.7 powerstroke has given me fuel problems for 2 years going through different mechanics. They got it running better than it has since I've owned it.
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August 2023 by Angela C.
A friend recommended them, and I'm glad she did. I live in central Austin so this was a bit of a drive, but it was worth it. I was having intermittent connectivity problems between my truck and trailer, to where the left turn signal and then the brakes stopped working. I had brought in just the truck, since they told me when I called that they didn't have room to keep a trailer there.Jeff, the owner, ran a couple of diagnostics on the truck and told me he thought it was the trailer's fault, so he had me go get the trailer and bring it over so he could go over it also, which was what I had wanted to do in the first place. (Because I had already taken it to one mechanic who quickly told me it must be the trailer, and a trailer dealership, who promised me the problem was the truck. I needed someone to look at both together. ) He tried a whole bunch of different things before isolating and fixing the problem. I was waiting there in the shop and he kept me updated on everything he was doing. It didn't take that long.I don't think a regular mechanic could have found and fixed the problem. It turned out that the diagnostic tool he had used didn't replicate the electrical load that the trailer was pulling, so even though that tool said the problem must be the trailer, in fact it was the truck. If he hadn't been willing to look at both at the same time, we wouldn't have known.BTW the truck is a gasser, not a diesel, but that was no problem. He said he works on all types of trucks. Afterwards he told me that even though of course I don't want to drive the trailer without brakes as a general rule, my truck (a newer 3/4 ton truck) could handle it in an emergency as long as I drove carefully, so I shouldn't worry. I found that really reassuring, as pulling a two-ton trailer when its brakes have gone out was pretty scary. I think he could sense that I am a worrier and told me that so I wouldn't worry.I will be taking my truck to M & M from now on.
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June 2023 by Michelle Perez
Great guys! They really know thier stuff. I would highly recommend.
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April 2023 by Daniel Dodd
Guys are super helpful here. Refreshing to find a mechanic that takes pride in fixing the problem. Great job M&M
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November 2022 by Joel De loera
Diagnostic bad replacement 2 injectors and problem is filter sensor, ,, O'Reilly's fix 100 dollas
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October 2022 by Patrick Harris
Amazing work! They ordered parts for my vehicle and the past came in damaged. Instead of putting the damaged part on and doing a shady job, they called and advised me of the issue and ordered another. I appreciate honesty in business. Was my first time there. If anything else comes up, I'll be sure to return as my first choice. Vehicle is performing great
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July 2022 by Jason Lynn
M&M took care of something another mechanic wouldn't. Did a great job, my excursion runs great now no issues at all. That being said if it ever needs work this is where it'll go.
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July 2022 by Jennifer Ebert
So far, we are VERY impressed with this shop! Took our truck I'm, because it kept going into limp mode...the owner explained all the issues...filed it all through our extended warranty and have kept us up to date on everything!!
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May 2022 by Ibkghost
Honest, genuine people, have had bad experiences with 2 previous diesel shops in the area between misdiagnosis and shoddy work on other systems, absolute relief dealing with this team, very knowledgeable, friendly, no BS kind of guys. Very much appreciated gentlemen. See you soon.
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April 2022 by Eliot Partridge
I had a few issues with my 2001 f250 a month ago. They fixed them all and were great to do business with. Trucks been running great . Thank you M &M Diesel!
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February 2022 by Bonnie E.
I stumbled into M&M Diesel via Yelp when I needed someone to assess my dad's F250 diesel which had been sitting for more than 2 years. Billy was candid about how soon they could take the truck, helped arrange towing to the shop, and kept me informed all along the way. I am not permanently in the Austin/Pflugerville area, but if I was, this would be my go-to shop.
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December 2021 by J Mad
Great place, friendly staff and very reasonable prices and professional service! This is my go to place in Pflugerville for my F250.
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November 2021 by Rosie Raney
They fixed our 2015 F250 check engine light issue.
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September 2021 by V. V.
M&M Diesel & Auto are the only auto mechanics I trust with my vehicles. I’ve been coming here since 2015. They have completed the following auto maintenance items on my vehicles:- Brakes- Oil changes- Transmissions- Cooling systems- Filters- Air Conditioning- Spark plugs- Wipers- FluidsThey have excellent customer service and are Veteran friendly. 10% Veteran discount on parts.I’m very picky and like my cars to run way past 100k miles. M&M Diesel & Auto provides the maintenance work that allows me to get the most out of my vehicles.
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September 2021 by Caleb Fogle
I don't know the slightest thing about diesel motor repairs. Brought my truck here and they got me squared away! These people could've told me anything and charged me any amount of money they wanted... (I wouldn't have known any better). That wasn't my experience whatsoever... they were polite, knowledgeable and informative and saved me a bundle of money. Thank you to M&M Diesel and Auto! I'll be your customer for life!
