The monkey wrench key is on the dash and the truck was running fine yesterday and this morning. Left the truck running when I came out and went to back up the truck stalled and won't re-start any suggestions on how to get it to start would be great.
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ecu is taking up more voltage as a back up reserved. Try removing the battery once it is loaded in the evening and put it back in the morning and try to start.Trial and observation will pin point the main cause.
if you have the 6.0 then the filters are located on top on the motor right beside your oil filter and under the drivers side on the fuel pump, check to see if you have diesel in your bowl where the fuel filter is, no diesel in there your fuel pump might be dead, check fuses to fuel pump and check relay on the passengers side kicker panel, check your owners manual
Check the connections under the FICM. (fuel injection control module) It is on top of the left valve cover. It is the big silver flat box. There is 3 connectors underneath that should be "clicked" onto the module. Do this with the key off as there is a very high voltage there.
2008 F-150 4WD twice now the alarm suddenly is triggered and I cannot start truck. 1st time replaced battery, which I was told was ok, truck started fine for 6 weeks. Now problem is back but can not start truck even with a jump start on new battery. Reset light under dash is flashing frantically and now if I push remote to unlock, all locks unlock on first push.