Ford F-150 (2004-2008) :: Engine Shut Off While Driving / RPM Started Rolling Back From About 1700 To 0
Jan 23, 2017
I have a 2008 F150 with a 4.6 litre in it. Last year I dropped a couple of plugs and had a factory new, second generation 4.6 installed. The motor only has about 25,000 on it while the rest of the truck has about 160,000. I was driving back roads in western Mass and went over a small, about four inches deep, pothole. I was driving about 35 miles per hour.
I didn't get any associated master warning lights. The RPM started rolling back from about 1700 to 0, and when they got to 0, the engine shut off. There was no previous sign of a fuel pump going bad, or of a bad fuel filter, which is also less than a year old. The truck has plenty of electrical power and turns over strong but won't start.
I checked the #9 fuse as identified in the manual but couldn't find an actual relay for the fuel pump, so I'm assuming it just has the 20 amp fuse which was good by the way. I'm thinking that the fuel pump would have given a few warning signs, but maybe not.
I did check the emergency fuel shutoff switch to make sure that it had not activated when I hit the pot hole and unless I'm resetting it incorrectly, it doesn't seem to have been set off.
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Here are the freeze frame details:
Frame 1 Mod $00
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Troub Code P0174
Abslt TPS 24.3%
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Baro PRS 71 kpa
Calc Load 100%
[Code].....
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