Ford

Have Ford Questions? Ask a Mechanic for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

Ford

I have a 2007 ford expedition, after vehicle is warm while

Customer Question
driving it has this hesitation...
I have a 2007 ford expedition, after vehicle is warm while driving it has this hesitation, feels like I'm going over rumble strips on side of the road. The hesitation comes and goes as we drive.
Submitted: 2 years ago.Category: Ford
Show More
Show Less
Ask Your Own Ford Question
Answered in 10 minutes by:
10/26/2015
Ford Mechanic: Jared D, ASE Certified Technician replied 2 years ago
Jared D
Jared D, ASE Certified Technician
Category: Ford
Satisfied Customers: 1,975
Experience: Shop Supervisor at County Fleet
Verified

I have seen the 5.4l engine on the 2007 expedition misfire with no accompanying trouble codes (check engine light). Sometimes it will hesitate and shudder for miles with no code set.

When was the last tune up on the vehicle (spark plugs and boots)?

Your symptoms could also be a restricted fuel filter; when was it last replaced?

Ask Your Own Ford Question
Customer reply replied 2 years ago
did plugs within last year, never fuel filter, also replaced all plug coils
Customer reply replied 2 years ago
my mechanic seems to feel its a drive/ tran issue although cannot pinpoint it
Customer reply replied 2 years ago
definitely no engine light or code set
Customer reply replied 2 years ago
had to replace tension bar and belt , then problem seemed to start?
Ford Mechanic: Jared D, ASE Certified Technician replied 2 years ago

A hesitation from the drivetrain? Does it feel like the transmission is slipping?

Does is change based on pushing the gas more or less?

Ask Your Own Ford Question
Customer reply replied 2 years ago
doesn't seem to, just happens randomly but always when engine has warmed up and at lower speeds 35-50
Ford Mechanic: Jared D, ASE Certified Technician replied 2 years ago

Did the mechanic use Motorcraft plugs? We have a fleet of about 1200 fords, 200 of them are the 5.4l engine. If you use anything other than Motorcraft plugs it will misfire, just as you describe.

Rarely do we get them in with slipping transmissions; they usually just go out completely when they go.

Ask Your Own Ford Question
Ford Mechanic: Jared D, ASE Certified Technician replied 2 years ago

Is it most noticeable when you are just barely on the gas, almost coasting?

Ask Your Own Ford Question
Customer reply replied 2 years ago
not sure I will have to ck.? But wouldn't they misfire immediately ? or would they break down over time
Customer reply replied 2 years ago
no, more noticeable when pushing on gas.... never when coasting
Customer reply replied 2 years ago
I am no mechanic but have worked on vehicles for 30 years, I feel it is a engine issue more than a drivetrain issue. but with that said that while I am talking to a professional
Ford Mechanic: Jared D, ASE Certified Technician replied 2 years ago

Then I would definitely say it's the plugs.

No, they don't misfire right away. They usually start acting up about 5,000-10,000 miles after replacement.

You also have to fill the coil boots with dielectric grease- this sounds unusually, but it is essential to keep them from misfiring down the road.

Ask Your Own Ford Question
Customer reply replied 2 years ago
ok that's seems about the timetable on mileage since we replaced plugs .
just to clarify it feels like a vibration/hesitation when it happens very noticeable to
Customer reply replied 2 years ago
what if the are motorcraft plugs we used ?
Customer reply replied 2 years ago
also what if we used after market coils, will that have same effect not using motorcraft like the plugs
Ford Mechanic: Jared D, ASE Certified Technician replied 2 years ago

If they are motorcraft plugs then you may just have to drive it until they set a code. You will also want to inspect the boots for signs of spark jump, which would be caused by no dielectric grease when they were changed.

Aftermarket coils aren't as big of a deal. Most of the brands you can get will perform as well as the factory brand.

Ask Your Own Ford Question
Ford Mechanic: Jared D, ASE Certified Technician replied 2 years ago

Please let me know if you need additional information.

Ask Your Own Ford Question
Ford Mechanic: Jared D, ASE Certified Technician replied 2 years ago

Let me know if you need additional information.

Please don't forget to rate. They don't pay us if we don't get a positive rating.

Ask Your Own Ford Question
Ask Jared D Your Own Question
Jared D
Jared D
Jared D, ASE Certified Technician
Category: Ford
Satisfied Customers: 1,975
1,975 Satisfied Customers
Experience: Shop Supervisor at County Fleet

Jared D is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

AlvinC answered a question about my Ford truck that only someone with an in-depth knowledge of his subject would have known what was going on.

Rich DUSA

Because of your expertise, you armed me with enough ammunition to win the battle with the dealer. They are installing a fuel filter and fuel pump at no charge to me.

MollyUSA

I needed help with my car on Saturday morning....got a response in 5 minutes, and it was the perfect solution. Thanks again to your service.

Jason V.Kirkland, WA

I do know, after going though this with JustAnswer, that I can somewhat trust my mechanic but I will always contact you prior to going there.

BRNew Jersey

I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry.

Stephanie PElm City, NC

used your service this weekend with "Trecers" help. thank you ,thank you, thank you. replaced an A/C fan motor. Local Auto Zone had part. $15.00 "tracer" fee and $40.00 for parts, I saved several hundreds of dollers at a shop. i will recommend you and use you in the future.

David L.Richmond, TX

9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much.

PhilMarysville, CA

< Previous | Next >

Meet the Experts:

Ron

Ron

ASE Certified Technician

24,155 satisfied customers

23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs

Chris (aka- Moose)

Chris (aka- Moose)

Technician

27,937 satisfied customers

16 years experience

John Mc

John Mc

Ford Technician

5,495 satisfied customers

19 years Ford Lincoln Mercury experience

Chuck

Chuck

ASE Certified Technician

1,685 satisfied customers

33 Years Experience,Ford Senior Master,ASE Master,L1 Advanced Engine Performance

Cam

Cam

Journeyman Automotive Technician

10 satisfied customers

GM Grand Master Technician 2007. 14 years Automotive experience.

Richard

Richard

ASE Certified Technician

1,524 satisfied customers

12 years at a Ford Lincoln/Mercury and Jaguar dealer as a technician and shop foreman.

Mike V.

Mike V.

Auto Service Technician

1,335 satisfied customers

25 years experience on all makes and models, Licensed NYS Inspector.

< Previous | Next >

Related Ford Questions
Getting spark to distributor but not to spark plugs. 1986
getting spark to distributor but not to spark plugs. 1986 ford ranger. 4 cylinder 2.3 liter engine … read more
heavy_chevy_396
heavy_chevy_396
Vocational, Technical or Trade Scho
2,518 satisfied customers
I'm trying to replace the number 4 spark plug on a 2004 Ford
I'm trying to replace the number 4 spark plug on a 2004 Ford F-150 5.4L v8 Triton engine. It seems like the spark plug socket isn't grabbing the plug, and it just keeps spinning around. … read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
24,155 satisfied customers
Replaced the spark plugs on my 2011 Ford Taurus, but a month
Replaced the spark plugs on my 2011 Ford Taurus, but a month later I got P0305 so I went to autozone and picked up a coil and replaced it. Now a month after that, I have p0205 and p0305. I switched th… read more
Dan
Dan
Automotive Technician
Vocational, Technical or Trade Scho
25 satisfied customers
I have a spark plug in an Explorer that is stuck and now the
I have a spark plug in an Explorer that is stuck and now the spark plug is stripped … read more
heavy_chevy_396
heavy_chevy_396
Vocational, Technical or Trade Scho
2,518 satisfied customers
What is a reasonable price for a tune-up and spark plugs
What is a reasonable price for a tune-up and spark plugs that aren't connecting consecutively… read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
24,155 satisfied customers
I week ago, the full set of spark plugs were changed, and
I week ago, the full set of spark plugs were changed, and the gearbox oil replaced. Yesteday, and intense vibration in the engine and and acute noise appear when the car is in D or R, but not when it … read more
eauto
eauto
self employed
High School or GED
74 satisfied customers
3 spark plug wires were chewed in half on right side of six
3 spark plug wires were chewed in half on right side of six cylinder, so wanted to doublecheck location on distributor cap … read more
Randall
Randall
Auto Technician / Consultant
Vocational, Technical or Trade Scho
69 satisfied customers
I have a 2001 Ford Escape V6 and one of my spark plugs is
Hello, I have a 2001 Ford Escape V6 and one of my spark plugs is stripped: the 5/8 socket will not grab it. Since the spark plug sits deep in the valve cover I cannot grab it with a vice grip or any o… read more
kalamykid
kalamykid
Pactor automotive
Vocational, Technical or Trade Scho
97 satisfied customers
Check engine light after changing spark plugs, stays on,
check engine light after changing spark plugs JA: Does the light stay on, or does it blink? Customer: stays on JA: What is the model/year of your Ford? Customer: 1992 F15 4.9 JA: Are you fixing your v… read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
24,155 satisfied customers
Oil in spark plug well of ford 5.4 Triton engine. 3000
yes, Was told there was blown out plug, so am pulling plugs one by one to check. This is the one passenger side closest to cab … read more
Chad Farhat
Chad Farhat
Owner
Associate Degree
4,000 satisfied customers
Changed the spark plugs that were toasted could not get two
changed the spark plugs that were toasted could not get two out on the far left side. It then would shoot high rpms to 4k rpm, then i changed the Idle air then the throttle position sensor which i onl… read more
Mechanic01
Mechanic01
1,138 satisfied customers
Have 2013 ford fusion 1.6l with 79,000 miles. spark plug
have 2013 ford fusion 1.6l with 79,000 miles. spark plug wont come out and dealership says they have to replace the whole valve at 3700. Engine overheated the other day so we check codes and found the… read more
Gunvir Singh
Gunvir Singh
1,702 satisfied customers
2008 FORD RANGER 2.3L 4 CYLINDER, 4 SPARK PLUGS. REPLACEMENT
2008 FORD RANGER 2.3L 4 CYLINDER, 4 SPARK PLUGS. REPLACEMENT COIL FROM AUTOZONE C1342 DOESNT MATCH LAYOUT OF EXISTING COIL 1S7G-12029-AC. SUPPOSED TO BE DIRECT REPLACEMENT. PLUG ON RIGHT ON BOTH. EXIS… read more
Chris (aka- Moose)
Chris (aka- Moose)
Technician
Vocational, Technical or Trade School
27,937 satisfied customers
2006 F150 5.4l, Changed spark plugs and coil packs. runs
Changed spark plugs and coil packs. runs worse than it did before. … read more
Jared D
Jared D
ASE Certified Technician
1,975 satisfied customers
1985 ford bronco 5.8 eng distributor cap / spark plug
1985 ford bronco 5.8 eng distributor cap / spark plug /wireing order. on the cap. from the black dot. is munber 1 dose it go to the right or to the left and dpse it go in order 1 / 2 / and so on to 8… read more
roy
roy
Associate Degree
3 satisfied customers
I have A ford fusion 4 cylinder changed spark plugs and
I have A ford fusion 4 cylinder changed spark plugs and boots . now I have a shimmy when idle could it be the coils ? … read more
Ron Z.
Ron Z.
Vocational, Technical or Trade Scho
2 satisfied customers
PO174, PO308 and P0316, 5.4 L triton V8 2004, spark plugs
spark plugs were done recently 326000 km i'm thinking coil packs and O2 sensor … read more
David Craig
David Craig
OWNER/MECHANIC
Associates
3,927 satisfied customers
L loosen the spark plug on passenger side and 2nd spark plug
Hi l loosen the spark plug on passenger side and 2nd spark plug from front, l can't pick up .l think it's lean on the side, it's very tight place but l deal with it, then nothink work's. Thank you. It… read more
Kenny Z
Kenny Z
Ford Senior Master Technician
High School or GED
16 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x