OBD code P0301 and P0316, possible causes?
The coil-on-plug. These are common to fail. #1 is easy to get to, all you need is a 7mm socket, an extension, and a ratchet. P0301 tells you that cyl.#1 is not firing everytime it is asked to, P0316 means that during the first 1000 revolutions when you start your truck, there was a misfire. To be sure about the coil, swap the coils with the one next to #1. Clear the codes and wait for the codes to return. If the code P030_ shows up, (P0302 if you swapped it with #2, P0303 for #3, for example) Then remove that coil and get you another!
SOURCE: Changing front brake pads on a 2004 Ford Explorer Sport Trac
I'm guessing you have disc brakes in the front of the Explorer. If so, you need to unscrew the two bolts that hold the caliper on.(they'll be either hex or allen bolts) If the caliper does not slide off, take a C=clanp and slowly back the piston down on the caliper. This should free up the caliper so that it can be removed. Make sure you grease the slider pins for the caliper when you reassenble.
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.
SOURCE: cylinder 1 misfire code p0301
kenracer yes our codes p0301 and p0306 is the #1 and #6 misfire
SOURCE: 01 ford explorer sport trac rear timing chain diagram
They will not loan you the tools.....how else will they continue to rip off the average garage junkie and make lots of money?
SOURCE: 2004 Ford Escape with 3.0L
P0316 = engine misfire
P0304 = #4 cyl
A very common problem is a bad COP or coil. They can be expensive ($75? at part store), so you could try switching the coil with another cylinder and see if the code changes location with the coil.
They are easy to replace. Unplug the connector. Remove the one screw (8mm?). Pull straight out.
2004 Marauder and 2003-2004 Mustang vehicles built before 12/19/2004 equipped with 4.6L 4V/5.4 4V engine may exhibit a runs rough, lacks power, and engine misfire, prompted by a MIL light and DTC codes P0301, P0302, P0303, P0304, P0305, P0306, P0307, P0308, and P0316.
ACTION
Diagnose engine for engine misfire concern. If diagnostics determine an engine misfire which is characterized by leakage through exhaust valve(s), only replace the affected cylinder head(s).
SERVICE PROCEDURE FOR VEHICLES WITH RUNS ROUGH/MISFIRE CONDITION:
1. Perform relative compression check on all cylinders. If abnormal, check cylinder leakage and actual compression for "low" cylinders refer to Workshop Manual (WSM), Section 303-00.
2. If leakage/compression check indicates a valve train concern, per valve train diagnostics in WSM, Section 303-00, replace cylinder head and cam assembly, pipe plugs and timing chain tensioner, per procedure outlined in WSM, Section 303-01.
3. If cylinder leakage and compression tests are inconclusive, perform misfire diagnostic, per TSB 05-22-8.
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