John’s Diesel Performance

We are on the road full time with our young children, so not a lot of money to throw around! We are only in the area for a week, so we brought our Ford into John’s after checking the Unilocal reviews. John has renewed our faith in mankind! He got us in immediately, spent nearly an hour under the hood and even rode around in the truck to listen to the whine. He could have tried to swindle us in a second but instead gave us great news, and great advice. He didn’t even charge for the visit. If there had been a significant issue, I would have trusted him to fix it. He was very kind, very honest, and deserves every bit of business that can come his way! Bring your vehicles here and tell your friends too! I can only hope we meet more of his kind down the road.

I called johns over 6 times today from work. I was hung up on every time because it is an out of area number without even letting me speak. While you may be a good mechanic your customer service skills are lacking. I will not be suggesting your shop to anyone or using your services ever.

John and company are very sincere, knowledgable and fair mechanics. They have worked on no less than 6 of my vehicles, and have done a wonderful job on each. All were completed on time, and there was no «we found more…». I appreciate this shops honest pay for honest work way of doing things.

I was going to buy a used diesel truck and need a diesel auto expert to help check it before buying. I called a few places and only one other offered that service for a fee and needed an appointment. John’s Diesel not only offered to check the truck for free, they told me to come in immediately!
Thank god for me, it turns out the used truck is no good. Without them, I would have bought a dud.
John’s Diesel is really a company that truly cares and loves autos. I will take my business to them anytime. Highly recommended.

I stopped by John’s Diesel Performance because I had a engine light on.
John brought out his tester and said it was indicating a number of things that needed to be taken care of. John said this isn’t right because some of the problems giving codes were out of sync with each other. He said, if you like I will reset the codes and you drive it for a week and if something shows up we will read the codes again.
I drove the truck for a few hours and when I restarted it the engine light came on again. I went back over to John and he said all I needed was a glow plug. He said I could pick one up or he could get it. I picked it up and went over again and he replaced the glow plug. I asked if I should replace the others and he said no because it was not cost effective.
Let me tell you that I will be back to John’s for all my needs. He didn’t rip me off and he only charged me for a ½ hour of work. I will recommend John to all my friends who have cars and trucks, diesel or gas.
He also took the time to explain to me that I didn’t need to replace my diesel fuel filter every 10,000 miles but bring it in at 15,000 miles.
It is sure good to know that I have found someone who is really honest.
William A.

just reminiscing about my old car. and i’m so happy to see this place is on Unilocal!it’s gotta be almost a year ago– spring of last year– that i drove my vw jetta tdi out to fresno to visit some friends and family. the car was running a little rough on the way out there (‘course i wasn’t about to stop driving) so i figured i’d have it checked out before i headed back home to chicago.
i came across John’s place and decided to check it out. i described my issue to him and told him it sorta felt like a misfire. and i was worried that i needed new coils. then i kicked myself! cardinal rule — don’t diagnose the car for the technician! right? now he was gonna tell me i definitely needed that and probably a laundry list of other things.
needless to say, i was really surprised when he explained to me (so that i could understand) that direct injection on diesel cars is a little different than your standard fuel injection, and that my injectors were just a little dirty. he cleaned them up for me, and since i’d told him i was heading back to chicago he took the liberty of looking over the rest of the car and making sure it was road worthy. uh-​oh, right? so then he tells me that the car was otherwise in really good shape and gave me a heads up on a couple small issues that wouldn’t be a problem for a good while.
John is really easy to talk shop with and obviously knows what he’s talking about. he took the time to explain everything to me, prioritized everything by severity, and has more integrity than anyone i’ve ever given my car to. if i lived in fresno and had John to help me maintain my car– honestly, i’d probably still have it. not only did i make out like a bandit with my visit to John, but he really helped me understand everything so that i wouldn’t get nickle and dimed with my other issues when i got back to chicago. i don’t drive a diesel anymore, but if i’m back in fresno i’d take my car to John for any issue without thinking twice.

I stopped by this place on my way up the Valley because I needed my brakes serviced really badly, and decided to wing it, and try some place in Fresno.
This guy’s really great. He’s kind of a no-​frills, straightforward dude. He was able to do everything same-​day. Apparently he worked for a dealership for a really long time, and I got the sense that I was getting the same quality of a dealership but with the price of an independent shop, which is always nice.
He’s got a pretty gnarly-​looking truck that he’s building up. Apparently he’s a diesel specialist, and I’m guessing he knows his way around trucks. Luckily he’s more than happy to work on cars too (I drive an accord). Next time I go through the Valley and need some work done, I’ll definately come here again.