When to use 4X4 - READ ONLY

8 messages, Last post on Dec 08, 2007 at 9:18 PM

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#1 of 8 When to use 4X4 by newby6 Aug 14, 2007 (2:55 pm)
Just bought my first pick up truck and also happens to be my first 4X4, 2007 Dodge Dakota automatic 4.7 engine. Mechanic said the best way to avoid transmission problems is to leave car in 4X4 at all times. Salesman said keep in 2X2 until needed in 4X4. Book seems to favor salesman. Would appreciate any advice. Thanks. Replies to this message: 12ozcurls (Aug 14, 2007 4:07 pm) 0patience (Aug 14, 2007 5:33 pm) paisan (Aug 15, 2007 4:33 pm) 0patience (Aug 15, 2007 9:05 pm)
#2 of 8 Re: When to use 4X4 [newby6] by 12ozcurls Aug 14, 2007 (4:07 pm)
Replying to: newby6 (Aug 14, 2007 2:55 pm) Are you sure he said this? If he did he is way off. If you drove with your truck in 4x4 all the time, your front differential wouldn't last long. Unless your vehicle is set up from the factory to drive in 4 wheel drive all the time, like an Audi or Subaru, you should under no circumstances drive in everyday/highway traffic with your 4x4 engaged. Since the front wheels are moving at slightly different speeds than the rear wheels at all times, if 4x4 was engaged, this would cause a mismatch in the front diff and gears would begin to bind against eachother until something gave, most likely being your front diff blowing up. this site might help explain a little more: http://auto.howstuffworks.com/differential.htm
#3 of 8 Re: When to use 4X4 [newby6] by 0patience Aug 14, 2007 (5:33 pm)
Replying to: newby6 (Aug 14, 2007 2:55 pm) Do not use 4x4 on dry pavement. Only engage 4x4 in areas where you think you may have a need for it. Like gravel roads, mud, ice, snow. Places where the front tires can give when you turn. Engaging 4x4 on dry pavement will usually do one of a few things. Either tear up the differential, axles or tires. Replies to this message: paisan (Aug 15, 2007 4:33 pm) 0patience (Aug 15, 2007 9:05 pm)
#4 of 8 Re: When to use 4X4 [0patience] by paisan HOST Aug 15, 2007 (4:33 pm)
Replying to: 0patience (Aug 14, 2007 5:33 pm) I wouldn't use a traditional 4-hi or 4-lo on dry pavement. I would use auto-4wd or awd mode on dry or rainy weather and 2wd for dry pavement. -mike Replies to this message: 0patience (Aug 15, 2007 9:05 pm)
#5 of 8 Re: When to use 4X4 [paisan] by 0patience Aug 15, 2007 (9:05 pm)
Replying to: paisan (Aug 15, 2007 4:33 pm) My bad, I'm still a bit old school and keep forgetting to consider AWD as 4x4.
#7 of 8 4-wheel drive debate by tinka Dec 07, 2007 (3:14 pm)
Hubby and I own a 2005 2500HD Silverado and a 2004 Blazer, both with 4-wheel drive, both bought new. The debate is whether or not you should periodically drive the vehicles in 4-hi so as to keep everything lubricated and nothing jams when you really need it. We keep our vehicles VERY well maintained and I don't see a need to do this, but it has sparked a debate in the neighborhood. Any opinions? Who's right? Replies to this message: paisan (Dec 08, 2007 9:18 pm)
#8 of 8 Re: 4-wheel drive debate [tinka] by paisan HOST Dec 08, 2007 (9:18 pm)
Replying to: tinka (Dec 07, 2007 3:14 pm) If you read your manual it will likely (not 100% sure) say that you need to engage the 4wd 1x a month and drive it back and forth a few times (maybe down your driveway) so that the actuater get's lubed. I've seen several vehicles (different makes and models) get stuck in 2wd due to not having done this. -mike