Callahan Auto & Diesel

Challahan Auto & Diesel repair is always quick to get me in, and the quality of their work is consistently excellent. I really appreciate that they send a detailed estimate before the appointment so I can review and approve the work ahead of time. And any time I have a question, someone actually picks up the phone during business hours—no hassle, no runaround. Reliable, honest, and efficient. Highly recommend!

The people at Callahan's are honest and truthful, which unfortunately seems rare these days. They are good at diagnosing the problem which is half the problem. They will lay out a plan for you to fix the problem lay it out step by step, with the in potential cost, and most importantly, they will go over their plan with you and explain what needs to be done and why it needs to be done. They don't proceed until you understand what must be done and signoff on the proposed plan. Further, they only use the best parts, which saves you from failure of faulty parts (a real problem since COVID), and will not stop until the vehicle is fixed. Good people and less expensive than most other shops. Friendly, courteous, and competent service.

Owner and staff knowledgeable, professional and caring. Customer service was excellent. They were friendly, kind and considerate of my situation. Two previous mechanics had tried to fix my bus but after much time and money they couldn't fix the problem and sent me on my way without fixing it. It was a complicated problem but Callahans dug deep keeping me informed every step of the way and figured it out. They gave me a bus that runs better than it ever had. They also gave me a list of things that will need doing in the future and an estiment of the cost, along with a maintenance plan to avoid further problems. Special shout out to Preston, Bob and Hank for taking such good care of me and my bus. I highly recommend these men and their shop. They figured out the problem when others couldn't. Trustworthy, honest, knowledgeable and caring. I give them 10 stars.

We had Callahan work on our 2005 Diesel Ford Excursion in February 2024 because it had a coolant leak. They charged us $11,270 including replacing the radiator. We don't drive it much. The first time we took it on a long trip to Queen Creek it overheated. We had it towed back to Callahan. They said it needed more work and charged us $1,239. We were driving to Sedona when it overheated again. We towed it back to Callahan. This time they did not charge us but said it was fixed. We were driving back from Sedona and it overheated again. We took a picture of the cheap plastic part that broke. Back to Callahan it went. During our conversations we were accused of pulling a trailer which we were not doing. They also blamed the age of the truck. Granted it is 20 years old but it only has 100,000 miles. Three weeks later they gave us an estimate of an additional $5,600 to fix it. During the conversation we were told we could never pull a trailer and it would probably break down again. We specifically asked if they had checked the head gasket and they said it was fine. At this point we had lost all faith in Callahan's workmanship. We took it to Monster Diesel. In about 2 hours they diagnosed it was a bad head gasket. The radiator we just replaced was too small and cheap. If we towed anything with this radiator it would overheat. The part that was just replaced was not installed correctly and would have separated again. There could also be major engine damage because the truck has overheated three times which will be very costly to repair. We would not recommend Callahan.

I haven’t had any work done yet but I plan to. Customer service and everything else was close to perfect and Preston is very personable. I will have to do an updated review as soon as I go back to get my work done!