A misfire isn't a very good description - constant, intermittent, under load, light throttle or what?
Most misfires under load are ignition related and the checks aren't finished until the spark power has been tested...
Simply put, it's either and mechanical problem or electrical problem. Check your basic systems, Fuel pressure, timing, idle speed, vacuum in inches, read error codes, and so forth. So about is systematically. No sure why you did head gasket unless you had a compression issue or water in the cylinder or similar issue. Stretched timing belt/chains can cause timing to be off too.
Wow your kidding me it's 1 of 3 things vacuum lines broken ///idle air control valve //// throttle position sensor the check engine light should've been on unless it was and you left it that way till it burned out have the codes read at auto zone then disconnect both battery cables and see if the codes come back after driving for about 50 miles also when you first turn the key to on not start or crank do you see the check engine light lit if not the bulbs burnt out and how come the codes were never attempted to be read before ?this is very obvious and I have to ask who's doing your work oh boy what a rip anything sets codes oh well have fun
SOURCE: 2007 FORD EXPLORER SPORT TRAC 4X4 Change oil light on
Press and hold the SELECT/RESET
control switch to select SYSTEM
CHECK when “SYSTEM CHECK /
HOLD RESET” is displayed in the
message center. Selecting this
function from the SETUP MENU
causes the message center to cycle through each of the systems being
monitored. For each of the monitored systems, the message center will
indicate either an OK message or a warning message for two seconds.
Pressing the SELECT/RESET control switch cycles the message center
through each of the systems being monitored.
The sequence of the system check report and how it appears in the
message center is as follows:
1. OIL LIFE RESET
2. CHARGING SYSTEM
3. WASHER FLUID
4. DOOR AJAR
5. EXTERIOR LAMP
6. BRAKE SYSTEM
7. PARK BRAKE
8. MILES TO EMPTY
9. FUEL LEVEL LOW (will only display if 50 miles or less to empty)
To reset the oil monitoring system to 100% after each oil change
[approximately 5,000 miles (8,000 km) or 180 days] perform the
following:
1. Enter SYSTEM CHECK to display
“OIL XXX% RESET IF NEW”.
2. Press SELECT/RESET control
switch to display “HOLD RESET IF
NEW OIL”.
3. Press and hold the
SELECT/RESET control switch for
more than 2 seconds. Oil life is set
to 100% and “OIL CHANGE SET TO
100%” is displayed.
When the engine is "over heating" are the radiator cooling fans running on high speed?
Has there been any engine work performed on the vehicle lately?
Let me know.
Regards,
SOURCE: how to change fuel filter on 2001 ford explorer
it in the tank so your gonna either gonna have to drain the tank and lower it to the ground,it shouldn't take more than 30 minutes.make sure you put the seal back in right,so it won't leak,it aint very hard.
SOURCE: 2004 FORD EXPLORER SPORT TRAC POWER WINDOWS AND
Look in the owners manual and see if they have a circuit breaker or relay instead of a fuse. It could be bad and you would not see it.
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