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Just want to know why my 2015 Ford Ranger XLT 3.2 goes into limp mode on hot days of 30 degrees and upward. I can't even have the air-conditioner on and go up a hill. It’s very frustrating. Is there a common problem l don't know about?
A modern car like the Ranger has a heap of sensors that warn the on-board computer of something that’s getting too hot, causing the car to enter limp home mode to avoid further damaging itself. That means you could be looking at a problem as varied as the condition of the radiator and its plumbing, the intercooler, coolant pump, the EGR valve and more. Perhaps it’s a simple case of low coolant triggering the limp home. Certainly, these engines can lose coolant if the EGR valve is damaged or leaking.
But then you can also move along to the driveline, because a too-hot transmission will also trigger a limp-home situation. Is the transmission cooler working properly? Does the transmission have the correct quantity of fluid in it?
Start with the basics and don’t be afraid to give the car an electronic scan as the fault codes it has logged could be a big clue in what component is causing the grief.
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