04 Lariat 5.4 starts then stalls
#17
03-20-2017, 07:54 AM
#18
03-20-2017, 10:54 AM
Temperature is up to 26 from about 19 when I first started the truck this morning.
I was just out starting and trying to run it and had better results. Since this morning I have started it about 30-40 times with the same result, stall after 5-10 seconds.
Now, I attempted to keep it running with light throttle and it held at 1500 rpm then stalled. After a few more tries I got "engine in safe mode" on the menu.
A few more tries and it has held idle. Now it has been idling for about 5 mins. and seems back to normal.
I was just out starting and trying to run it and had better results. Since this morning I have started it about 30-40 times with the same result, stall after 5-10 seconds.
Now, I attempted to keep it running with light throttle and it held at 1500 rpm then stalled. After a few more tries I got "engine in safe mode" on the menu.
A few more tries and it has held idle. Now it has been idling for about 5 mins. and seems back to normal.
You had the trouble display on your menu.
Why did you ignor it?
It will tell you the nature of the problem.
It's likely an issue with the electronic throttle assembly operation.
It does control idle under al conditions.
Good luck.
#20
03-20-2017, 02:19 PM
Fleet Mechanic
#21
03-22-2017, 12:39 PM
So we had a warm day yesterday. When I arrived home I got it started again. Stumbled for a long wile before smoothing out. I took this as an opportunity to get it to a shop. I had a mechanic do the fuel pressure test. It began reading at 60% but his laptop would not complete the test. The test cycle broke down. He is recommending it needs a fuel pump.
#22
03-23-2017, 08:54 PM
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