Ford F150 is having some kind of start-up problem?
Vehicle: 2007 Ford F150 5.4L
I start the truck up in the morning time and it comes on fine but after I drive it, shut it off, and then try to start it back up it takes about three tries for it to work. Also the check engine light stays on. What could be the problem?
- hobbabobLv 69 months ago
the 5.4 has had a history of injectors that leak down causing 1 cylinder to hydro-lock. the symptom starts off like a cranking motor problem, bumping the switch will get the engine past the [hard spot] where upon the exhaust valve opens and the fuel is pushed out of the cylinder. the easiest way to test for this is to unbolt the fuel rail and lift out the injectors from the manifold leaving them attached to the rail.unplug the electrical connectors at each injector.now cycle the fuel pump by turning the key to the ON position and inspect the injectors for leakage. replace the offending injector[s] as required.
NOTES: 1. only lift one bank of injectors at a time.
2. no smoking, a fuel fire is no joke
3. keep an A.B.C. rated extinguisher near by .
4. DO NOT PERFORM THESE TESTS INSIDE A GARAGE OR OTHER STRUCTURE.
SHOULD A INJECTOR DISLODGE FROM THE FUEL RAIL A LARGE QUANTITY OF FUEL
UNDER HIGH PRESSURE WILL BE DISCHARGED.
hint a scan with a misfire at start up code will reveal which bank to check first. passenger side front to rear 1,2,3,4. driver side front to rear 5,6,7,8.
- 9 months ago
Is the starter motor turning over during the first and second try, and how long does each attempt last before you disengage?
- DasLv 49 months ago
Ask your friends to recommend a good mechanic who can help you.
- hornchurchmaleLv 710 months ago
we have an issue that will not go away and will sooner or later result on non starting at all! a diagnostic check is needed thus. fault code(s) can be read and and fixed. Ford dealers and most good garages can easily read codes and correct issue. best to bite bullet while its cheaper as. trying to run and ignoring an issues nearly always result in much higher repair costs .
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- thebax2006Lv 710 months ago
Hey dude...how about going to an auto parts store and get the codes read!
- pondererLv 610 months ago
He's a magic man mama. Not really.
- 10 months ago
I don't know what the problem is