Question about 1999 Ford Expedition

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Ford expedition misfire cylinder 4

Getting a misfire code on cylinder 4

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

chuck943
  • 783 Answers

SOURCE: engine code p0307 cylinder #7 misfire

It could be carbon deposits on valve seats keeping valves from totally closing. You can try getting you a can of motorcraft PM3 top end engine cleaner and get engine up to operating temp then remove one of the small vacuum lines from the intake and draw the contents of the can slowly into the engine.After you have drawn in the contents shut engine off and let it soak for about 45 minutes then crank it back up and let it run until it clears. Now it will smoke like a forrest fire while you are doing this so don't be alarmed,just tell the neighbors you are spraying for mosqitos.This may cure the problem. If not you may be looking at a valve job.
This can be verified with a compression test if this is what is causing it.

Posted on Feb 05, 2009

emissionwiz
  • 75807 Answers

SOURCE: location of cylinder 4

here is the cylinder layout diagram for thios engine.
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Posted on Apr 15, 2009

  • 1 Answer

SOURCE: location of 7th cylinder on a 2001 ford expedition 5.4

the order of the park pluggs and coil packs is easy it goes:

driver side passenger side
5 ------ 1
6 ------ 2
7 ------ 3
8 ------ 4

1 through 4 is on the passengers side and 5 though 8 is on the drivers side, and all in order.

Posted on Jun 28, 2009

  • 2 Answers

SOURCE: I have a code po354 on my 99 expedition, book says

I just worked on 98 expedition 5.4l had code PO354. This code refer to an open primary coil winding, open wire, or bad PCM.
Check primary winding with ohm meter should be from 0.5 to 1.5 ohms and about 2.5 ohms with a hot engine. check wiring with a noid light, run the engine and shake the harness if light goes out repair harness you should have battery voltage with key on the computer controls the ground side.

Posted on Dec 09, 2009

jturcotte
  • 8161 Answers

SOURCE: i have a 2004 ford freestar 3.9 The engine light

Hi, the first step I recommend is to check for spark. You can do this by starting the car and then carefully pulling up the boot to the #1 ignition wire at the coil. If sparks are jumping inside the boot, you have spark and the ignition system is working.
jturcotte_504.jpg
1. Ignition: If there is no spark, shut of the engine and use an ohmmeter to check the impedance of the coil. Take the boot off, and connect your ohmmeter from the coil terminal to the engine ground. The resistance should be around 10-20 kohms. If not, replace the coil. If yes, the problem is the ignition module under the coil.

Now, assuming you have spark (which I believe you do, because the coil runs 2 cylinders, and you only have one cylinder that is misfiring), the problem will be a lack of compression or a bad injector (or possibly the injector wiring).

Note: I will provide repair steps once the troubleshooting is complete and the problem identified.
Also, if you do not have a multimeter, you can get one for $10-20 at radio shack or even Walmart. It will save you money overall--or maybe you have a friend that you could borrow a meter from.

2. Injector: The next easiest test to run is to see if the injector solenoid is clicking. You can do this by holding a long screwdriver to the injector and hold the other end of the screwdriver to your ear. With the engine running, you should hear the injector clicking. If not, you have a bad injector or a wiring problem. To determine whether the problem is the injector or the wiring, pull the connector off the injector and measure the AC voltage in the connector with the engine running. The voltage should be 1-2 volts or similar to that voltage of any other injector connector.
If the voltage is good, but the injector is not clicking, replace the injector.

3. Valves/compression: the last possible reason for a misfire is a lack of compression. The intake valve must open to accept a fuel/air charge, and both valves must be closed for the cylinder to fire. Sometimes an exhaust valve will burn and not hold compression. A blown head gasket can also cause this problem. The test we use to check the valves is a compression test. You can borrow or purchase a compression tester if you get to this point. Remove a few of the spark plugs including the cylinder that is misfiring. Screw the compression tester into the spark plug hole and crank the engine for a few revolutions. Record the pressure on the gauge, release the pressure, and go on to the next cylinder. If the pressure is much lower on any cylinder as compared to the highest cylinder, the cylinder head will have to be removed to correct the issue.

Please let me know the results of your troubleshooting and feel free to ask questions as you go.

Posted on May 20, 2011

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1 Answer

1999 ford expedition engine misfire at low speed and deceleration have replaced bad coil over plug asembly


Is the check engine light flashing? Have you determined the cylinder is getting fuel and the injector is ok? Does the cylinder have good compression? Is there any intake vacuum leak? Are any other fault codes present when you run a fault code test?

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What would cause a misfire of #1 cylinder on 2000 ford expedition 5.4 liter engine?


these have a problem with coil packs and ignition wires. check the plug it may need replacing, but change all the plugs not just the one. you could have a dirty or a bad injector for that cylinder or even a vacuum leak at the intake for that cylinder. something else is you could have poor compression on that cylinder.

Aug 06, 2014 | 2000 Ford Expedition

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Why does my 2006 5.4v8 expedition still not accelerating after fixing the engine code that shows bad coil number 6 even replaced plug ?


Need to replace All the spark plugs,All the coils
& All the oxygen sensors,clean the maf sensor

Usually with all the cylinder misfires from bad coils,
your exhaust converters are ruined

Jul 27, 2014 | 2006 Ford Expedition

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97 ford expedition Code p0302 cylinder / misfire how do I fix this problem on my 97 expedition


That is cylinder 2 misfire,check spark plug,clean throttle body,if its ejector clean 2 or carborator should be clean with cleaner

Feb 22, 2014 | Cars & Trucks

1 Answer

Po302 code also po316 code


Put the old coil back in #2 & walk the new one to another cylinder

PO Codes are wrong, as many times as correct on a ford

Forget the 316

Your best to look at fuel trim with a professional scan tool
& cylinder misfire counts in Mode #06 also

Those trucks have leaking injectors some times, but that isn't
the code your getting

Spark plugs can't be in there over 3 years

The front 2 oxygen sensors have to be replaced at 100,000 miles

Do those 2 items & then diagnose the misfire or walk the coils

Feb 12, 2013 | 2003 Ford Expedition

1 Answer

2000 ford expedition blinking check engine light


What Means-the check light?

You pretty much answered your own question

Get the codes,fix what you see & then work
on any misfires,if you still have codes

May 26, 2012 | 2000 Ford Expedition

1 Answer

# 4 and 5 misfire


either you didn't get your coil packs pushed on all the way or they are faulty

Dec 31, 2011 | 2001 Ford Expedition

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Why is my 1997 expedition showing a misfire on number 2 cylinder OBD code PO302. Also I am getting code readings PO174 andPO171 system to lean on Bank 1and 2


PO302 is being a misfire, could mean the plug is bad or the coil is bad for that cylinder. Which can give you the misfire reading and the system to lean codes. Check the #2 coil for firing.

Jan 28, 2010 | 1997 Ford Expedition

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