2005......125K miles


If it sits for a week, it won't fire unless I turn key on and off 2 or 3 times...


I have been living with this until yesterday. Now it can have the same symptoms after sitting 1 hour. It usually runs fine once it starts, but occasionally it will falter and run rough for a while....


A breakdown on the road would be ugly....


Needing your thoughts and what worst case scenario can be........


Thanks.

 

My first guess would be fuel pump.

 

I have to second this. The easiest way to test it is just turn the key to the "ON" position and listen for the pump to pressurize the line. If it's not humming and you're having to "bump" it 2-3 times to get it to go that could be it. We need a little more info to really help though. Does it crank and not fire? Does it fire but not crank reliably? The first step is to determine if it’s a spark, fuel, or compression problem.

 

x3

I recently was reading a LONG thread that ended up being a fuel pump issue.

The symptoms were exactly the same regarding the random wait times before the truck would start.

 

Well.........


I put it off and it finally let me down.


The old girl won't start now.


Having it towed to the dealer today for a fuel pump install.....


Luckily, the fuel level is low..........that 44 gallon tank would be a devil to handle.

 

Kick or pound the tank with a rubber mallet you will get them to start one more time done it a bunch of time in different vehicles. A friends wife drove her explorer around kicking the tank when it wouldn't start for two weeks until he had the money to get a pump

 

On my 5.4 (f-150) the wires to the fuel pump fuse had issues going into the fuse box on the fender under the hood. If i pushed on fuse sometimes it would start, relay was good. Rewired with inline fuse.