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So, a few days ago I'm driving along the highway, and there's a section where there's a sudden rapid rise of the surface after a bridge underpass. You know the kind where it feels a little like you're lifting off a bit? I was probably at about 70-75 mph, and as I crested the rise, it felt like the engine just lost power for a few seconds, before it seemed to recover, and has been fine ever since

I've not been back on that section to test it again, as we've had the shelter-in place thing here in Northern California, but I was wondering what on earth it could have been? Some kind of fuel surge somewhere?
 

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I haven't had this happen with my foot on the gas, but have had the Jeep kick out of cruise control in a situation like you describe. Presumably because traction control kicked in as those above have suggested.
 

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If your wheel sensors detect a variance in speed from the other wheels this happens. It thinks you are experiencing a loss of traction. If this happens frequently check to be sure you have equal air pressure on all 4 tires.
 

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Echo the traction control.


When TC activates it throttles back the motor. If you're not expecting it, it feels like 'loss of power'.
 
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