Question about 1998 Ford Expedition

1 Answer

I have a 98 ford expdtn, check engine light came on, error code indicating missfire on #4 plug. this plug is stuck, dealership says it will cost around $1100 to repair. is this about right on cost?

Posted by Anonymous on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Ford Master
  • 6,982 Answers

If the shop intends to remove the cylinder head because the plug is inaccessible for removal, then the price is determined by their hourly labor rate. The problem itself is that either the plug was cross threaded when installed or no anti-seize compound was put on the threads (necessary because plugs are left in and not replaced as often as they used to be and can seize up, especially in an aluminum head). In any case, the head does not need to be replaced as a heli coil repair kit can be used to replace the damaged thread.
Personally I think the price is a bit high but labor rates and exactly what the shop intends to do as a repair have more bearing on the situation than what I think.
In either case, I hope it turns out well.

Posted on Dec 29, 2010


1 Suggested Answer

  • 2 Answers

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

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

2 Answers

2002 ford taurus missfire or vibrate @ 3000 rpm what could possible be the problem? no check engine lights on

Do you have a check engine light that is flashing, if it is you need to have the fault codes checked with a scan tool to see what is causing this.

Dec 03, 2016 | 2002 Ford Taurus

1 Answer

98 f150 4.6 missfire cylindars 4 and 5

Exchange cylinder 4 and 5 parts with 2 other cylinders and see if the problem goes to the other cylinders.Start with this first.

Jun 12, 2017 | Ford F-150 Cars & Trucks

1 Answer

I have a 2001 ford taurus ses with a 6 cyl 3.0L DOHC engine. Getting error codes P0304,P0305 and P0306 from check engine light. Light alternates between flashing and steady. Lots of hesitation and...

Codes say Cylinder 4, 5 & 6 are not firing. This could be a spark issue or a fuel issue or a mechanical engine failure. Is compression zero? Did they use a compression tester?

Aug 02, 2011 | 2009 Ford F-150

1 Answer

Hi, I have a 52 plate ford fiesta with intermittent speedo problems. Speedo goes off and engine light comes on. Any ideas? Sharon


When your Engine Check light comes on, it means your computer has detected a fault and wil have stored the code in your computer. This code can be read by your local Ford dealership, using an OBDII scan tool.

An intermittent speedo problem is probably caused by an issue with the Vehicle Speed sensor (or wiring), which is mounted on your transmission case (see No. 7 in diagram below):

As you have indicated your vehicle is 2011, you should have this issue rectified under the New Car Warranty and repaired at no cost.



Jun 13, 2011 | 2011 Ford Fiesta

2 Answers

Throwing P0301 and P0302 fault codes as of yesterday. Check engine light has been on and threw code of P1450 about 3-4 months ago. Figured it was an evap issue and no big deal thats why I never remedied...

those are misfire codes. Cylinder #1 & #2 in the firing order. Check for bad plugs first. Swap one of the misfires with a non misfire cylinder and see if that cylinder misfires. Or just change the 2 plugs. Put high temp anti seize on the threads if you ever want to remove them later.

Then change the 2 COPs (Coil on Plug).

Finally, check for plugged or bad injectors. CHevron Techron injector cleaner is the best. Add to 1/4 tank of gas for better cleaning.

Report results.

Please rate too. Thanks.

Dec 22, 2010 | 2001 Ford F150 Styleside SuperCrew

1 Answer

Heitation, vibration Check engine light flashes, bad gas or something else

This is likely caused by a engine missfire, this can be due to a failed engine coil,spark plug or fuel injector. Ford has extended warranty on some fuel injectors on the f-150 and expedition you will need to have your local dealer see if you vehicle applies to the recall. Since the check engine lamp is flashing then a code is also stored and will need to be retreived to determine which of the cylinders is missfiring.

May 29, 2010 | 2004 Ford Expedition

3 Answers

Missfire in cylinder 2

I assume you know the problem is a misfire in #2 cylinder from checking the diagnostics code. Although these codes can be helpful in narrowing down a problem they lack specific details. In the case there are several possible items that could trigger the engine fault code P0302

These include:
  • Faulty spark plug or wire
  • Faulty coil (pack)
  • Faulty oxygen sensor(s)
  • Faulty fuel injector
  • Burned exhaust valve
  • Faulty catalytic converter(s)
  • Running out of fuel
  • Poor compression
  • Defective computer
Before you spend any money to resolve this you need to narrow this list down even more. Start by pulling the plug. Do a image web search on "spark plug diagnosis". This will give you pictures of plugs with a variety of problems to compare with yours and give you an indication whether or not the plugs need replacing. Next if possible switch #2 plug wire with another. Make sure you switch both ends (coil end and spark plug end) of the spark plug wire.
These are the no or low cost options. Beyond these you will need to start replacing items like the Ignition Coil and O2 sensor.
If you are still having the problem after checking and/or replacing the items listed above, your next step is a compression test on #2 cylinder.
If you get to this point please repost here with the results with the wires and plugs and I will give you the steps to follow with compression testing.
Hope this helps.

Oct 14, 2009 | 2001 Ford Ranger Regular Cab

1 Answer

Misfire only in drive when idle. Ok when driving

you have an ignition coil going bad if the check engine light is on have the code pulled and it will pinpoint witch cylinder is missfiring if it is not on you will need a scan tool to watch the missfire in data mode to pinpoint it that may also find when you pull the coil out that is missfiring it may be covered in oil you will need to replace the valve cover gaskets if this is going on and clean the oil off the coil and **** the oil out where the spark is

May 29, 2009 | 1999 Ford Expedition

2 Answers


Fan blower moter on 98 regal

Dec 27, 2008 | 1999 Buick Regal

1 Answer

1999 ford taurus sho v8

injector,plug,wire,coil, vacuum leak. Isolate 1 by 1 by moving them around to other cylinders to see if the problem moves with it.

Oct 09, 2008 | 1999 Ford Taurus

Not finding what you are looking for?
1998 Ford Expedition Logo

60 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts


Level 3 Expert

79865 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers


Level 3 Expert

5687 Answers

Are you a Ford Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides