Question about 2001 Ford Explorer

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2001 Explorer jolt at speed

My 01 explorer (105K) has a mild but noticable jolt at most speeds, sometimes 20 minutes apart other times more frequent. It feels like a rough shift would feel, but the I don't think it is the transmission because it is cruising along in overdrive (or 3rd) and is not shifting at the time. RPM's don't change at all. I think it may be front hub related? Like if the auto 4x4 is trying to engage or disengage without reason? No other bad noises, and no problems in 4x4 or low range.

Right front hub assembly is only 4K miles old, left side is original.

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  • richardswing Dec 28, 2008

    It has been a while since tune up, so that is a possibility. Does not seem like the engine though, as I have not had any rough engine running like at idle or higher speed, or engine stumbling while accelerating. I will pay more attention to whether it could be tune, and when I get a chance I will get a tune up.



    Any other ideas? Thanks!

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You might just need a good tune up. A secondary wire (spark plug wire) breaking down will cause that problem. When was your last tune up?

Posted on Dec 28, 2008

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