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AUTONET TV

For 4x4s (Maintenance of 4x4 Vehicles)

Posted July 7, 2019 7:41 AM

Some people love 4x4 vehicles, the true 4-wheel drive works of engineering like Jeeps and 4x4 pickups that allow you to seemingly go anywhere on the planet. You can climb up a 40-degree rock trail with some planning and skill (always careful to protect the environment, of course), or you can get through the deepest snow.

But with that added capability comes additional complexity, drive-train components and other systems that less capable vehicles don't have.  And that is why when it comes to 4x4s, you have to maintain them a little differently from those vehicles that spend their lives on pavement.  Here are some of the key things to keep an eye on:

  • Transfer case—This transfers power from the engine to the wheels.  A transfer case has fluid in it that needs to be changed at intervals recommended by the manufacturer.  Your service advisor will let you know how often that is and will keep track of your service dates.  You will need to make sure the transfer case seal is working properly.  Otherwise, transmission fluid could get in and cause damage that is costly to fix.  Some transfer cases have an electric motor that shifts it through gears, and its connections are often exposed to the elements, making them vulnerable to damage and corrosion.  Proper maintenance will keep those connections working like they should
  • Front and rear differentials—These also have to have the right amount of fluid and should be checked regularly.  Your service advisor can let you know when you need that fluid changed as the owner's manual recommends.  It's important the service is performed correctly with the proper lubricant so it will work the way it is designed to.
  • Brake lines—Those 4x4s practically beg to go into wet spots. They also are great machines to conquer snow: road salt, brine and all.  Moisture, salt and brake lines are a recipe for corrosion, so brake lines need to be inspected regularly.  There are anti-corrosion sprays or white lithium grease that can retard corrosion.  Remember, getting there is half the fun, but not being able to stop is no fun at all.

So enjoy your 4x4 and what it can do that other vehicles can't.  Just remember that even though it's tough on the outside, it needs special care to keep it going.  Oh, and remember to take care of the environment when you go off-roading, too. 

D.C. Auto
7120 McGinnis Ferry Rd.
Suwanee, GA 30024
(770) 495-0909



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  • Tom and the folks at D.C. Auto are simply the best. I've had a good bit of work done on my vehicles over the years and have always been treated well. They're honest, thoroughly explain the problem and charge reasonable prices; everything that you could ask for in a mechanic.
    -Tony D.

  • Been a DC Auto customer for almost 6 years now. Tom and his crew are top people - never disappointed. Always upfront and honest. Never "pushed" an addon or any sorts like that. One can only smile at a couple of pointed and personal reviews here. Never had "that" problem at DC Auto. Would recommend.
    -Raju S.

  • Always helpful, always cheerful. Honest estimates, and won't recommend work that isn't needed. If the problem falls outside of their ability, they will tell you right up front. I've taken multiple cars there for years and have never had a problem.
    -Charles P.

  • I have been going to DC Auto since it first opened. The staff is highly knowledgeable and courteous. Tom is one of the most honest men I know. He is highly ethical and never tries to "up-sell." The work is always superior. After all these years I can't see myself going to any other auto service company.
    -Louis C.

  • Awesome service at a great price. Always stands behind his work. Tom runs a great shop with great employees and always a smile and a story. Honest no gimmicks what all businesses should be.
    -Ron T.

  • I have been a customer with DC Auto for close to four years. I have NEVER had an unpleasurable experience. They know who I am when I pull in and do their very best to keep me and my family safe on the road! The crew at DC Auto is outstanding and the customer service is phenomenal.
    -Jessica R.

  • 5 stars...the guys at DC Auto have taken care of our family's cars since they opened. I just brought in my 2005 Honda Pilot with an oil leak. They found the leaky oil pan and replaced it. Not surprising on a 205,000 vehicle - drain plug was getting stripped out. She STill runs like new because I keep it maintained (at DC Auto). Fact is they do great work, they're honest and prices are good. No stupid high pressure. I trust them. Highly recommend.
    -Jerry M.

  • Fantastic service shop my husband and I (as well as several friends we recommended them to) have used for years. I know "honesty" isn't often a word associated with car mechanics but Tom and Rob have always shot us straight about our vehicles, and I know it to be true because several times, their advice to us has actually cost them a repair job (and saved us money). They typically get us scheduled same day or maybe the next, and the turnaround time is speedy. For hometown feel, honest opinions about your car, great service techs and reasonable prices, use DC Auto.
    -Megan H.

  • DC Auto is the what every car repair shop should be. These guys are great! They easily find what is wrong and fix it in a timely manner. The other reason I will refer anyone here is because their pricing is very reasonable. This place is better than others and WILL NOT overcharge you for every little and last thing. Go to this place for any car maintenance big or small. Tom and Robert in particular are who I would suggest, although everyone on staff is very good.
    -Dan C.

  • 10/10. Would recommend. Personable and knowledgeable mechanics that don't try to rip you off. Great quality work for reasonable pricing.
    -Kaylee M.