Hummer Auto Repair in Winslow | M & M Auto Repair

M & M AUTO REPAIR > Top Level Auto Repair & Maintenance Services > DOMESTIC CARS & TRUCKS > HUMMER

Fast And Convenient Hummer Repair Services

Repair and maintenance for all Hummer make and models including:

Hummer EV
Hummer H3
Hummer H2 SUT

Originally, General Motors owned Hummer, and designed it for wartime military service. Today, the Hummer brand combines a rugged exterior with reliability and interior creature comforts.

Hummer is a brand that takes power, off road capabilities and reliability seriously. M & M Auto Repair highly recommends regular general maintenance to avoid high-cost repairs that can arise in some models and from aggressive driving applications. Common problems involve the engine, transmission, and the rear suspension.

M & M Auto Repair is here for every Hummer driver who does not want to be sidelined by auto repairs. We get you back on the road as quickly as possible at an affordable price. We understand that Hummer owners need fast affordable and convenient service. Our staff is ready to service all your Hummer vehicles. Give us a call at 207-877-7722 or stop by our service center at 48 Halifax Street in Winslow, ME.

Discover More About Hummer Repair Services At M & M Auto Repair in Winslow

Domestic Car Repair

Monday	8:00AM - 6:00PM
Tuesday	8:00AM - 6:00PM
Wednesday	8:00AM - 6:00PM
Thursday	8:00AM - 6:00PM
Friday	8:00AM - 6:00PM
Saturday	8:00AM - 12:00PM
Sunday	Closed

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We have friendly staff who will take care of you

Address:
48 Halifax Street
Winslow, ME 04901

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207-877-7722

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Vehicle Tips

According to recent studies, 5 percent of all motor vehicle fatalities are clearly caused by automobile maintenance neglect.
Vehicle Tips

The cooling system should be completely flushed and refilled about every 24 months. The level, condition, and concentration of coolant should be checked. (A 50/50 mix of anti-freeze and water is usually recommended.)
Vehicle Tips

Never remove the radiator cap until the engine has thoroughly cooled. The tightness and condition of drive belts, clamps and hoses should be checked by a pro.
Vehicle Tips

Change your oil and oil filter as specified in your manual, or more often (every 3,000 miles) if you make frequent short jaunts, extended trips with lots of luggage or tow a trailer.
Vehicle Tips

Replace other filters (air, fuel, PCV, etc.) as recommended, or more often in dusty conditions. Get engine drivability problems (hard stops, rough idling, stalling, diminished power, etc.) corrected at a good shop.
Vehicle Tips

A dirty windshield causes eye fatigue and can pose a safety hazard. Replace worn blades and get plenty of windshield washer solvent.
Vehicle Tips

Have your tires rotated about every 5,000 miles. Check tire pressures once a month; let the tires cool down first. Don't forget your spare and be sure your jack is in good condition.
Vehicle Tips

Check your owner's manual to find out what fuel octane rating your car's engine needs then buy it.
Vehicle Tips

Keep your tires inflated to the proper levels. Under-inflated tires make it harder for your car to move down the road, which means your engine uses more fuel to maintain speed.
Vehicle Tips

Lighten the load. Heavier vehicles use more fuel, so clean out unnecessary weight in the passenger compartment or trunk before you hit the road.
Vehicle Tips

Use the A/C sparingly. The air conditioner puts extra load on the engine forcing more fuel to be used.
Vehicle Tips

Keep your windows closed. Wide-open windows, especially at highway speeds, increase aerodynamic drag and the result is up to a 10% decrease in fuel economy.
Vehicle Tips

Avoid long idling. If you anticipate being stopped for more than one minute, shut off the car. Contrary to popular belief, restarting the car uses less fuel than letting it idle.
Vehicle Tips

Stay within posted speed limits. The faster you drive, the more fuel you use. For example, driving at 65 miles per hour (mph) rather than 55 mph, increases fuel consumption by 20 percent.
Vehicle Tips

Use cruise control. Using cruise control on highway trips can help you maintain a constant speed and, in most cases, reduce your fuel consumption.
Vehicle Tips

Keep your engine tuned. A fouled spark plug or plugged/restricted fuel injector can reduce fuel efficiency as much as 30 percent.
Vehicle Tips

Inspect the engine's belts regularly. Look for cracks or missing sections or segments. Worn belts will affect the engine performance.
Vehicle Tips

Have the fuel filter changed every 10,000 miles to prevent rust, dirt and other impurities from entering the fuel system.
Vehicle Tips

Change the transmission fluid and filter every 15,000 to 18,000 miles. This will protect the precision-crafted components of the transmission/transaxle.
Vehicle Tips

Inspect the suspension system regularly. This will extend the life of the vehicle's tires.

What our clients say about us?

Reviews and comments from our satisfied customers

Car & Truck Care, near Winslow, Maine

I’m new to the area and a new friend recommended M&M and I am so thankful, I’ve been in a couple of times, the 1st time my car had no heat, being I’m not super knowledgeable a shop could easily have taken advantage but they were totally honest & replaced a simple fuse, yesterday I was in for tires & let them know about multiple warning lights I had going on, they got me a beautiful set of very reasonably priced tires & checked everything I asked about and a couple more things, finding items that could have been a nightmare if not caught, not only did they make sure my car was in good shape they also provided fast services at very reasonable prices, I love M&M!!!

Julie, 01/15/2025
Electrical Services, near Fairfield, ME

Stopped by around 12:45- Talked with Bob, an owner. Had a rough idle issue my 2014 GMC Sierra. But no CEL. Had a tech. plug in the scan tool- 5 minutes later- bad coil pack on #7 cylinder. A big chain auto parts store told me it was a vacuum leak! New customer for sure now!!! Thanks again!

Scott H., 10/06/2023
Winslow, Maine

We've used M&M for all off-warranty repairs since the early nineties. (5-6 truck fleet). Wouldn't send anyone anywhere else. Decent prices, above and beyond quality and ethics. Always a worry-free experience.

Ken LaVoie, 05/18/2023
Great place!

Patty S.
These guys are awesome! Every time one of my vehicles breaks down these guys fit me right in and are very professional! Highly recommended!

Rick J.
Honest for once a mechanic you can trust i have been going there for years, fair rates timely repairs they don't fix anything that don't need fixing i strongly recommend M&M Auto Repair

Robert G.