Question about 1998 Ford Mustang

1 Answer

Engine mis-firing I have a 1998 Ford Mustang. The check engine light is on and I know I should first have the codes pulled but here is what it's doing. Sometimes it misses or misfires when on the highway. It feels like it jerks or pulls. you can tell it isn't firing right because when it runs well, it's really smooth. I have changed the plugs, plug wires about 4 months ago and I changed the coil pack about a month ago. The car has over 100k but had one owner before me and it was garage kept. Very well taken care of. The idle is alittle rough at times. Sometimes it runs really smooth. Any ideas?

Posted by on

  • 1 more comment 
  • rosasr Oct 07, 2009

    I did use a fuel additive "Lucus?? something like that. I also cleaned the butterfly plate. This improved the idle. It was running alot rougher before. The jerking and the pulling doesn't happen everyday, sometimes once a week, sometimes once in two weeks. I haven't replaced the fuel filter, I'm having trouble getting the old one off. I removed the clips but it won't budge. Is there a trick to that?

  • rosasr Oct 07, 2009

    See other comments posted

  • fred syn May 11, 2010

    timing chain? do you use any additives to your oil? rislone makes several products. how about gas additives and carb cleaning

×

1 Answer

Greg Bernett
  • Level 3:

    An expert who has achieved level 3 by getting 1000 points
    Superstar:

    An expert that got 20 achievements.
    All-Star:

    An expert that got 10 achievements.
    MVP:

    An expert that got 5 achievements.

  • Ford Master
  • 2,984 Answers

Mass Air Flow Sensor or Intake Absolute Pressure sensor


Engine mis-firing - e5677c9.jpg

Posted on Oct 07, 2009

  • Greg Bernett
    Greg Bernett Oct 07, 2009

    HHhhmmm....disregard on the sensor. After reading what you have posted (All info you know helps us) it sounds like some cleaning is needed for sure! Looking up a few things for you....

×

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!

6ya.com

Download 6ya

6ya.com

Need repair answers fast Use 6ya to...

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

2 Answers

1998 ford mustang check engine light
go to Advanced Auto or any other parts store, they will usually read the codes for free. Without a code reader, you can not troubleshoot the code.

Nov 07, 2011 | 1998 Ford Mustang

2 Answers

2000 ford mustang code 453 and missfire cyl 5 where is the cyl
a haynes manual from a parts place will show you--or chec the condition of each plug wire-if one looks bad or falls apart--probly need to get all new wires /plugs

Dec 18, 2010 | 2000 Ford Mustang

1 Answer

At idle the engine misses, off idle very smooth and runs normally computer code multi cylinder misfire. have changed plugs and wires did not help. could it be the coil packs of a fuel problem?
This sounds as if you have a vacuum leak, check all the lines and check the intake. There are a lot of things that will cause mis fire. mis fire code is triggered when the ecm reads a very slight difference in the time the crank sensor picks up a signal. Mis fires can be from electrical, vacuum, mechanical, and eletronic sources. If you can get it to a person/shop that read which cylinder are misfiring this helps alot, narrows the field. Let me know I can help. Also it helps to know what engine we are dealing with

Nov 11, 2010 | 1998 Oldsmobile Aurora

1 Answer

Check engine light on..dealership says new transceiver needed?? I want to buy the parts seperate..what model and # do I buy...?? 1998 Ford Mustang conv..auto, 6 cyl..
You'll need to go to an auto parts dealer (Napa, Baxters, etc) and give them the year, make, model, engine size (v6, v8 etc) and the Liter size, such as 3.8 etc.

They will be able to tell you what part(s) you need. Also, as a second opinion, have them run a diagnostics (free) test to determine the code matches that of the dealership.

Let me know if you need further assistance.

carsandcomps,

Guru, Premium Expert @ Fixya.com

Jun 15, 2010 | 1998 Ford Mustang

1 Answer

Check Engine Light on Yr2001 Ford Escape V-6 2wd. Code says: Misfire on cylinder #5. Dealer said compression is low in cylinder #5. This Escape needs to pass smog. What can we do?
If the engine has a P0305 DTC (Data Trouble Code) for a "cylinder 5 mis-fire detected", then the first thing to do is to do a compression test to determine if the mis-fire is actually being caused by a mechanical problem, or an electronic problem.

If the engine really does have low compression on the #5 cylinder then that is caused by a mechanical mis-fire and nothing electronic will repair it, and the most common causes for a mechanical mis-fire would be a burnt or bent intake or exhaust valve, a warped cylinder head or damaged head gasket, or a damaged piston. You can call around and find a repair shop that will do a "compression leak down test" if you want to know exactly what is causing the compression leak without any dis-assembly to the engine.

May 25, 2010 | 2004 Ford Freestar

1 Answer

I have a 98 ford mustang 3.6 and my check engine
Take it to your local Auto Zone and get the codes read. They can print you a copy of what to check for. IF the fluid is not flowing at all then your water pump is not working, be it due to belt or bearing in the pump. Have you changed the thermostat? Does the car actually run hot or does the light/gauge just read hot?

Mar 10, 2010 | 1998 Ford Mustang

1 Answer

No check engine light on runs rough while in gear
Plug Mis-firing (firing-but not adequately) no light and no fire.
Causes: Spark plug bad, spark plug wire leaking.
If you can pull the spark plugs - and you find that one of them is wet or very dirty - compared to the others....the you have the wire/plug source identified.

Oct 14, 2009 | 2002 Ford Taurus

1 Answer

Engine light stays on my 1998 mustang GT 4.6 Lt.
i don't see a code in your question. be that as it may if you are in the states you can go to an autozone and they will scan the codes for free

Sep 06, 2009 | 1998 Ford Mustang

1 Answer

Check engine light flashing
if the check engine light flashes than the pcm has detected a mis-fire with enough severity to cause catalyst damage.

you should have the vehicle scanned to fnd out which cylinder is mis-firing,

most likely cause is faulty spark plugs or spark plug wires.

good luck

wesleyschacht@hotmail.com

Jun 14, 2009 | 1998 Dodge Intrepid

1 Answer

When my check engine light came I had it tested it said that number five clyinder was mis firing I change the spark plugs no help I moved the coil pack to another cylinder no changewaht else could it be...
A cylinder #5 misfire is a P0305 code. Check out this great article for more suggestions: http://www.obd-codes.com/p0305

Apr 03, 2009 | 1998 Ford Expedition

Not finding what you are looking for?

View Most Popular

1998 Mustang

  • Cars & Trucks

Related Question

1998 ford mustang check engine light

  • 1998 Ford Mustang

Open Questions:

0 Answers

98 mustang anti theft system not working correctly. the local/unlock works perfectly, and the remote button to open the trunk however the panic button does not work at all, and the automatic start activates but stays on for like 2 minutes. also, you would have to hit my locked parked car with another vehicle to make the alarm go off. is there a way to reset the system or fix the problems at hand?

Feb 13, 2016 | 1998 Ford Mustang

0 Answers

What are the probable causes of DTC P1414? How to fix right to take red light off

Oct 11, 2015 | 1998 Ford Mustang

0 Answers

Why isn't driver's side window working? Replaced switch and motor and checked fuses,still can't get window to work! Help trapped in car with only one window and its hot in Florida! The passenger side window works from driver side,

Sep 16, 2015 | 1998 Ford Mustang

0 Answers

cant use remote lock or unlock - sets off horn alarm. help

Aug 14, 2015 | 1998 Ford Mustang

See all 1998 Ford Mustang Questions

Related Topics

1998 Ford Mustang Logo

Related Topics:

226 people viewed this question

Ask a Question

Usually answered in minutes!

Popular Questions

2003 Ford Mustang

2008 Ford Mustang

2005 Ford Mustang

2000 Ford Mustang

1966 Ford Mustang

Check Out the Latest Top Trucks Report!
Check Out the Latest Top Trucks Report!

View all Fixya Reports

Top Ford Experts

yadayada
yadayada

Level 3 Expert

75005 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

fordexpert

Level 3 Expert

5470 Answers

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

Answer questions

Manuals & User Guides

Loading...