Question about Ford Expedition

1 Answer

I have a 2001 ford expedition, and it has began idleing really rough all of a sudden and when I first take off there is a vibration and still a rough idle, also the check engine light will flicker off and on or sometimes come on and stay on, however when I reach a faster speed it kinda seems to not do all this as much or even at all. The code that it throws is a po308 (cylinder 8 misfire). Any suggestions on what this could be? Also, when idle is rough I occasionaly hear a rattle from the catalytic converter but not a consistent rattle just every now and then. I have changed the fuel filter, and fuel pump was replaced about 1yr ago, along with new spark plugs at the same time. Any help would be greatly appreciated. Thanks.

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Brigadier General:

    An expert that has over 10,000 points.

  • Master
  • 4,669 Answers

Sounds like a bad coil on the number 8 cylinder.

Posted on Jul 30, 2010

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

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

Hi,
a 6ya expert can help you resolve that 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.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

2 Answers

Where is the egr valve on a 99 Ford expedition


The EGR valve is in a very difficult spot to work on. If the EGR is bad it will set off the check engine light and make the vehicle run rough or stall at idle. It really doesn't make it run rough while driving or accelerating. What are the conditions when the car runs rough?

Mar 01, 2014 | 1999 Ford Expedition

1 Answer

Runs rough dies


change the fuel filter and check the fuel pressure

May 25, 2013 | Ford Expedition Cars & Trucks

1 Answer

1993 Ford explorer.Began idling rough and surging


The test connector is in a holder at the back bottom of the fuse/relay box on the passenger side fender well. There are 2 parts to it: the main connector and the ground, you will need both connected to the diagnostic tool to get the codes.
Check your IAC (Idle Air Control) valve on the side of the intake. These get carbon fouled and tend to stick causing high rpm for extended times. Also the EGR valve should be checked (under the intake) as it will cause rough idle or stalling near idle.

Mar 13, 2013 | 1993 Ford Explorer Limited

1 Answer

Car engine idles really high then really low, why?


It can be issue with IAC( idle air control valve) causing the problem.


There are many other possibilities causing these idle issues. Engine idles rough.

There are few help links with solutions to troubleshoot such idle issues.

I suggest you refer the link below and follow its troubleshooting details:------

Click the link below:-----

Ford Expedition IAC valve replacing

http://technoanswers.blogspot.com/2012/12/ford-expedition-iac-valve-replacing.html

Bad miss at idle?

http://technoanswers.blogspot.com/2012/01/bad-miss-at-idle.html

-----------

Stumbling and stalling at idle after engine rebuild?

http://schematicsdiagram.blogspot.in/2012/03/stumbling-and-stalling-at-idle-after.html

------------

1999 Ford F-150 Idles rough and quits when gas pedal is pressed less?

http://technoanswers.blogspot.in/2012/01/1999-ford-f-150-idles-rough-and-quits.html

---------

Engine stumbles coming off idle when warm?

http://repairhelpcenter.blogspot.com/2012/01/engine-stumbles-coming-off-idle-when.html

------------------

Erratic idle on car?

http://schematicsdiagram.blogspot.com/2011/12/erratic-idle-on-car.html

-----------


Cold start problem and vehicle shudder around 2500 to 3500 rpms

http://repairhelpcenter.blogspot.com/2012/10/cold-start-problem-and-vehicle-shudder.html

----------

Low idle when cold out side?

http://repairhelpcenter.blogspot.com/2011/12/low-idle-when-cold-out-side.html

-----------

GMC Sonoma Stalls and idles low

http://technoanswers.blogspot.com/2012/10/gmc-sonoma-stalls-and-idles-low.html

--------


GMC Idle Air Control (IAC) Valve Replacing?

http://schematicsdiagram.blogspot.com/2011/12/gmc-idle-air-control-iac-valve.html

-------------

1996 Camry intermittent engine failure while idle?

http://repairhelpcenter.blogspot.com/2011/10/1996-camry-intermittent-engine-failure.html

------------

Engine quits at idle?

http://repairhelpcenter.blogspot.com/2011/10/engine-quits-at-idle.html

-----------

Car overheats and Air blows hot at idle?

http://howtobyme.blogspot.com/2011/11/car-overheats-and-air-blows-hot-at-idle.html

---------

High Idle Problem

http://repairhelpcenter.blogspot.com/2012/10/high-idle-problem.html

-------

While stop engine idles like cylinder missing?

http://schematicsdiagram.blogspot.com/2012/01/while-stop-engine-idles-like-cylinder.html

---------

Idle flair is noticed on car? Rough idle? car will not idle? Erratic idle speed?

http://technoanswers.blogspot.in/2012/02/idle-flair-is-noticed-on-car-rough-idle.html

--------

High rpm in neutral? Inconsistant high RPM in neutral?

http://technoanswers.blogspot.in/2012/02/high-rpm-in-neutral-inconsistant-high.html

-------

Vehicle stumbling at idle and shows code 54?

http://schematicsdiagram.blogspot.in/2012/03/vehicle-stumbling-at-idle-and-shows.html

----------

Rough idle, staling and Erratic shifting?

http://technoanswers.blogspot.in/2012/03/rough-idlestaling-and-erratic-shifting.html

-----------

While stop engine idles like cylinder missing?

http://schematicsdiagram.blogspot.com/2012/01/while-stop-engine-idles-like-cylinder.html

---------

These details will help.

Thanks.

Feb 15, 2013 | 2003 Pontiac Grand Am

1 Answer

2003 expedition idles rough


If the check engine light is on I would check for trouble codes first.
If not, look for a vac leak or low fuel pressure.

Jul 24, 2012 | 2003 Ford Expedition

1 Answer

Honda accord ex 2001 check engine light suddenly came on, car started to idle roughly


If it's running rough, chances are that it's misfiring. If the Check Engine light is flashing/blinking, it is definitely misfiring.
If that's the case, drive it as little as possible... Or straight to the mechanic because the more you drive it while it's misfiring, the higher the chance is of you ruining your catalytic converter.

Apr 24, 2012 | 2001 Honda Accord

1 Answer

2001 ford expedition starts up fine and idle fine in warm weather, but when the temperature is below freezing it starts up but before warming up it idles rough and then shuts down.


sounds as though the fuel system is set for a differant climate then your living in take it to the shop and get it set for your area

Jan 02, 2012 | 2001 Ford Expedition

2 Answers

My 2001 Escort, 70k runs great but a definate vibration at the steering wheel. I notice it more when cold andwhen it warms up it is not as bad but still noticable vibration at the steering wheel. ...


That mechanic wasn't lying. I currently own three of them and I know a lot of people that own them and they all have a rough idle. The engines are internally balanced and they don't have dampeners, so you get the engine vibration transferred to the car and that is what you are feeling.

Dec 29, 2010 | 2001 Ford Escort ZX2

2 Answers

What parts do I need to tune up a 2001 ford expidition 5.4 4x4


If your 5.4 is idling or running rough a common problem is a vacuum hose on the back top passengers side of the engine, It is really more of an elbow hose consisting of two different sizes.
To do a basic tune up all that is required are plugs, wires, pcv valve and a can of SeaFoam injector cleaner in a full tank of gas.

Feb 23, 2010 | 2001 Ford Expedition

1 Answer

High/rough idle on Ford Expedition


i will check idle speed sensor, most likely this is the problem, and the fuel consumption problem can be related to O2 sensor which makes the car idle very badly, so i suggest you check both
thank you
good luck

Aug 17, 2009 | 2001 Ford Expedition

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

345 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts

yadayada
yadayada

Level 3 Expert

76132 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

fordexpert

Level 3 Expert

5520 Answers

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

Answer questions

Manuals & User Guides

Loading...