Passing gear shifting
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Joined: Mar 2011
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Passing gear shifting
This past week when coming back from a camping trip to Zion Nat. Park, I notice that the transmission shifting into the passing gear even on the slightest grade. I would try to back of the pedal to get it to go into a lower gear but this would not always work, when I got to flat ground it would shift down. Maybe this is normal but I don’t remember it doing that on the way there. Back ground information: 2001 Ford F150 2WD 5.4 towing a 2004 Thor Wanderer travel trailer with a dry weight of 3,800 lbs. The outside temp was 95 to 108. The transmission was just serviced before the trip. Any information or a way to check this or am I just making this into something it’s not? (I not sure if there is a vacuum pump for the passing gear that could be leaking?) Thanks for the help
Robert
Robert
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Joined: Aug 2006
Posts: 17,398
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From: Whittier, CA
Your engine has trouble breathing in +100°F temps, just like I do. The hot air is less dense, and your engine has less power. That's why we love turbo-charged diesels for towing. Also, your cooling system is more efficient when the engine is turning higher RPM.
Sounds like your truck was doing exactly what it should do.
Sounds like your truck was doing exactly what it should do.
