Grand Ave 651.564.9257

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Marshall Ave 651.565.9526

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West St. Paul 651.419.5436

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Duramax Service West St. Paul

Keeping up with your Duramax service is the best way to help your diesel live up to its reputation as one of the most powerful, durable engines on the market. Signal Garage in West St. Paul offers complete GMC Duramax repair and maintenance to preserve your investment and keep your Chevy pick up going strong. Our ASE-certified technicians service and repair all models equipped with a Duramax engine and can help you with anything you need, from oil changes to fuel injector replacements.

High-Quality GMC Duramax Repair & Maintenance

We perform a wide range of Duramax service and repairs, including:

Oil & filter changes
Fluid changes & flushes
30K, 60K, and 90K service
Fuel filter replacement
Fuel injector cleaning
Diesel Particulate Filter (DPF) cleaning
Fuel injection pump repair
Lift pump repair
Diesel exhaust fluid system repair
Diesel particulate filter cleaning & repair
Check engine light troubleshooting & repair
Head gasket replacement
Oil leak repair
Engine noise troubleshooting
Cooling system repair
And more!

When you need GMC Duramax repair, bring your diesel to a shop that won’t treat it like a spark-ignition engine! We take pride in our work and back all repairs with a lifetime warranty. We also offer 6-month interest-free financing to help you get the repairs you need when you need them. With three convenient locations to serve you in St. Paul and West St. Paul, we make it easy to keep up with your Duramax service easy. Schedule an appointment with us today!

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GRAND AVENUE

2050 Grand Avenue
St Paul, MN 55105
8AM – 5:30PM

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MARSHALL AVENUE

1592 Marshall Avenue
St Paul, MN 55104
8AM – 5:30PM

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WEST SAINT PAUL

84 Moreland Ave East
West St Paul, MN 55118
8AM – 5:30PM

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Service

What Our Customers Say

We measure our success by what our customers say.
Click Here To Read Reviews From Hundreds of Existing Customers

Terry Gannon – Inver Grove Heights

Thought the service I received and the price I paid were both reasonable and fair. After this experience, both my wife and I are now confirmed Signal Garage customers!!!
Bernie – Mendota Heights

Appointments are serviced on time with the work done right the first time. Greeting with a smile; a comfortable waiting room, and a thank you when the car is delivered. Have been a customer since the 1970’s and have known Rami and Heidi forever. Long time locally-owned business do it right, because they will be there in the future and they do cultivate trust and respect.
Margaret Mazzaferro – St. Paul

I intended to take my car in for an oil change at the end of October. You had a slow day, due to very nice autumn weather. To drum up something to do, you sent out an email, offering a $50.00 discount on any service provided that day, so, being no dummy, I took my car in. I really appreciate the initiative and the resourcefulness you folks show. Really paying attention. Thanks.
Chelsie – St. Paul

“When my car wasn’t starting before work I wasn’t in the best of moods. I didn’t know anything about Signal Garage before walking in to see if they’d be able to help me. Not only did they fix my car quickly with an affordable solution, but they had a clean waiting room with single cup keurig coffee AND they helped me get to work. I was extremely impressed with my overall experience and will be referring family & friends to this business. It was obvious that they are a family-owned business that truly cares about customer service. I can’t say enough good things. I’m so happy they are in my neighborhood!”
Karen Nachstheim – West St. Paul

I continue to be so impressed at the wonderful customer service at Signal Garage. The last time I brought my vehicle in I was greeted with smiles, prompt service and friendly updates on what needed to be done to my vehicle. My toddler and I even spent time talking with the owner and the service manager. We were treated to bottles of cold water after a walk outside as our car was being worked on! Thanks so much for all you do!
Trina Sturlaugson – Grand Ave

I was having trouble with my radiator. I stopped by Signal and they were willing to do a free inspection to make sure I needed service before repairing it. My car was done the same day I decided to go ahead with the repairs even though I had not made a scheduled appointment. When I had questions about the different repairs the technician (Avi) explained them in simple terms and was willing to answer the many questions I had. I would recommend this service to anyone because the service is done quickly, and the mechanics are friendly and willing to speak with you. Give a local garage your business as they treat you well and follow up to make sure you have a good experience!
Sidney Simms Sr – St. Paul

Dear Mark, On Thursday I had the pleasure of meeting with you at your place of employment in response to an add in the local papers. The professional manner in which I was received and treated by you and the staff was second to none , again thank you. But what prompted me to write this letter is upon “your recommendations” that I purchase front tires ASAP, of which I did on Friday morning possibly saved my life. For as we both know the change in weather dictated good tires in order to get around. In lieu of the fact that generated zero business for your company, true to form you did not neglect to remain professional in informing me about the immediate need for my vehicle. Many thanks Mark for everything. I do hope and trust that I will be able to continue doing business with your company.
Libby B – St. Paul

WOW! I have never had a positive auto mechanic experience until going to Signal! They are kind and respectful, and would explain the entire process of what was happening with our car. The treatment afterwards, was also fantastic! When I picked up my car (promptly done on time), there was a mint on my seat, and a thank you note for using their services! They have since called to check up on the car and make sure we don’t need anything else. Since then, we have used them over and over whenever we need anything done to our family vehicles! Kind, friendly, good value, top-notch service, and the techs seemed to love their jobs! They call us by name, and I couldn’t imagine using anyone else in the future! Finally, a great auto body shop!
Tina Feigal – St. Paul

I can’t recommend Signal Garage highly enough. Rami remembered my name after meeting me once. He offers choices on products, lets people know when the work can be delayed for the future, and gives fair price comparisons. Easiest recommendation ever! Signal Garage!
Lauren M – St. Paul

I wouldn’t take my car to any other place. They do great work here! They always look out for the best interest of the customer and go out of their way to ensure that your car is taken care of in an efficient timely way. I trust my car in their hands and know that they will do a great job every time!
Joe Juliette

From setting the appointment to picking up our car the experience was GREAT! Rami and his team were very easy to work with and were very helpful. I would definitely recommend Signal Garage Auto Care!
Douglas V. Gast – St. Paul

Friendly & FAST! Really appreciated getting vehicle repaired so quickly.
Donna Haugen – Inver Grove Heights

As Signal Garage states in their mission statement, ‘We are known for setting a new level of customer service in the automotive industry.’ That statement is absolutely true. My experiences at Signal Garage grade them ‘Gold Star’ and/or ‘A+.’ Congratulations on your 40th anniversary.”
Paul Portz – Mendota Heights

I had my car serviced today at Signal Garage and was totally pleased with the experience. The staff was friendly, the waiting room was comfortable and the coffee hit the spot. Thanks for the good job and I would recommend Signal Garage to anyone needing work done on their vehicle.
Jennifer – West St. Paul

I found Signal Garage first researching online and was drawn to them by their website stating they are a AAA shop and they made women feel completely comfortable (when most women feel out of place) When I checked in I was directed into the waiting area (which is typically something NOT THAT comfortable when having to wait for the length of time it takes to fix your car) I was SHOCKED at how stylish and comfortable it was. Flat screen TV, two leather couches, oriental looking rug under the coffee table, refrigerator filled with cold drinks and a Keurig all available with free drinks. Also loved that the bathroom is right in the waiting room and you don’t have to walk through the shop to get to it. Yes, it sounds very trivial, but those are all the little things that add to the fact they are high class auto shop that does all the “fix-it stuff” top notch!!!
Linda – St. Paul

In the 1970’s, when I lived in West St. Paul, I used the services of Signal Garage and I was always pleased with their service. When I saw that they had opened a new location in my neighborhood, I made an appointment. There are many places where I could bring my vehicle for service and Signal Garage seems to know that. I was treated like I would like to go back there again.
Edi P

I always wished I had a mechanic in the family who could take my car worries away from me. Well, I do and “he’s” at Signal Garage. Just like a trusted brother, Signal takes care of my car maintenance, lets me know what to expect, greets me with a smile, and never lets me go home unhappy. Signal Garage Auto Care is a family you can trust, and I really appreciate that.
Anonymous

ABSOLUTELY WONDERFUL. Avi and mark are just wonderful. My catalytic converter was hacked off of my car, and they did everything possible to help me. I also asked them to take a look at an estimate I had received from another garage. As I suspected, none of the other work recommended needed to be done. The difference in cost? $1,200.
Meghan S. – West St. Paul

I love Signal Garage Auto Care! There service is always top notch. They are kind, courteous, and professional. They never do any work on my vehicle without talking to me first. They take the time to explain what they are doing to my vehicle and the breakdown of parts and labor. Above all, they never make me feel pressured to fix little things right away (i.e. wiper blades). I would recommend them to anyone!
Karen Dosh – St Paul

Very friendly, easy to work with staff. Rates are good, work done promptly and well. Honest people, not trying to sell you more than you need or request. I recommend them!

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