Runaway Engine

[pkanalyst]

Any aftermarket tune or throttle enhancer module installed?

None, my Bronco is as stock as they come.

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[pkanalyst]

I don’t know. There are 2 throttle position sensors that read opposite of each other and 2 accelerator pedal sensors that read opposite of each other. The PCM constantly monitors them and does plausibility calculations to make sure they all are working correctly. If there is any discrepancies, it turns the wrench light on and limits power to avoid a runaway. I have never heard of a failure of that system on a Ford. I’ve been around Ford service since way before electronic throttle control.

Thanks, this is good to know. Since I was at our build site, I may have had some dirt or debris on my shoes that messed with the throttle. I’ve shop vac’d the area out really well and manually moved the pedal while sweeping and looking around in there. I’m hoping this is the end of it.

 

[Ford Motor Company]

Today I backed my 2022 Bronco out of the driveway and drove down the road about 1/2 mile. As I started braking for the stop sign, I noticed it was hard to slow it down and impossible to come to a complete stop. I threw it into neutral and the engine raced to 4400 rpms, holding steady there. I shut it down, put it in park and restarted it. In park it raced again to 4400 rpms. I shut it down again for a minute and the next time I restarted, it behaved normally and I drove 3 miles to where I was headed without any issues. Anyone experience this? I’m obviously concerned this could happen again without warning and will also be hard for a dealer to diagnose if they can’t duplicate the condition. But I don’t trust it anymore.

Hi Steve! I can look into your Bronco's concern on my end. To get started, could you please send a private message over with the name/location of your local Ford dealer and your Bronco's VIN?

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