Fuel Pump?
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Cross-Country
Joined: Jan 2017
Posts: 84
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From: Benson, NC
Fuel Pump?
Was driving along in the 09 F150 4.6 2V 120K miles. Truck was running perfect without a hiccup. Went to pass a slower car and when I stepped on the gas the motor shut off. Pulled over and when I tried to start it, it runs for a half a second and then off again. I haven't looked at it since getting it towed today
. I did switch the relay with a similar one while waiting for the tow truck, with no success. I dont seem to hear the pump when I turn the key on. Two questions. Do you think its a fuel pump? And is it easier to remove the bed or drop the tank. I do have a lift in my garage.
. I did switch the relay with a similar one while waiting for the tow truck, with no success. I dont seem to hear the pump when I turn the key on. Two questions. Do you think its a fuel pump? And is it easier to remove the bed or drop the tank. I do have a lift in my garage.
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Joined: Feb 2002
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From: KY
check fuse #20.
My bad! The fuse to check is # 27. TSB-15-0137 addresses this problem. It is an easy fix and there are you tube videos to help.
My bad! The fuse to check is # 27. TSB-15-0137 addresses this problem. It is an easy fix and there are you tube videos to help.
Last edited by scratcherky; Oct 24, 2024 at 04:33 PM. Reason: Incorrect fuse #
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From: Asheboro, NC
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Joined: Jan 2017
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From: Benson, NC
FPM
I figured a fuel pump module was a cheap enough part to giv it a try. Bought a Dorman but its still doing the same thing. The socket on fuse 27 looks to be fine. Im running out of ideas. When I turn the key, I can hear the pump kick on for 2 seconds or so. I then crank and it starts fine for one second then shuts off. While its running for the second or two, the throttle seems to do nothing. I dont know what else to do. Would a throttle position sensor do any of the things im describing?
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From: Sportsman's Paradise
I figured a fuel pump module was a cheap enough part to giv it a try. Bought a Dorman but its still doing the same thing. The socket on fuse 27 looks to be fine. Im running out of ideas. When I turn the key, I can hear the pump kick on for 2 seconds or so. I then crank and it starts fine for one second then shuts off. While its running for the second or two, the throttle seems to do nothing. I dont know what else to do. Would a throttle position sensor do any of the things im describing?
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Cross-Country
Joined: Jan 2017
Posts: 84
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From: Benson, NC
Unpluged
Ok I unplugged the maf sensor and it started and ran for about 10 seconds then stalled. Thats longer than its run since breaking down. Im gonna go pick up a new sensor.
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Joined: Jan 2017
Posts: 84
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From: Benson, NC
FIXED!!!!
IT IS FIXED! Replaced the MAF and the truck runs perfect!
Thank you! to all that helped! A Special THANKS! to ProjectSHO89 for making me aware of the fact that the MAF sensor could even cause this! If your ever near Raleigh, NC I got the first round!
Thank you! to all that helped! A Special THANKS! to ProjectSHO89 for making me aware of the fact that the MAF sensor could even cause this! If your ever near Raleigh, NC I got the first round!
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bronco-man
1987 - 1996 F150 & Larger F-Series Trucks
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Jul 30, 2008 08:19 PM