Ford

Have Ford questions? Ask a mechanic for answers ASAP

Ask an Expert,
Get an Answer ASAP!

Rough idle ,acts like it wants to die than smooths out a…

Customer Question
Rough idle ,acts like...

Rough idle ,acts like it wants to die than smooths out a little. Runs all most smooth at 2500 rpms

Mechanic's Assistant: Is the rough idle intermittent or consistent?

Consistent

Mechanic's Assistant: What year is your 2500?

It's a1998 f150 4x4 Lariat 5.4 I believe a 2 valve

Mechanic's Assistant: Are you fixing your 2500 yourself? What have you tried so far?

Fuel injectors clean and checked pressure, checked vacuum lines. Let me add this .it was running great before my son drove it into a ditch

Submitted: 11 months ago.Category: Ford
Show More
Show Less
Ask Your Own Ford Question
Answered in 11 minutes by:
7/29/2017
Ford Mechanic: Mechanic01, ASE Certified Technician replied 11 months ago
Mechanic01
Mechanic01, ASE Certified Technician
Category: Ford
Satisfied Customers: 3,339
Experience: Owner at Baltic investments
Verified

Hello my name is ***** ***** I will be assisting you with all of your vehicle questions today. Give me one moment while I review your question and come back with a answer. Please be aware I do not know your skill level or abilities so I will be asking a lot of questions and in a lot of cases we will respond to each other quite a lot before we find a solution. As far as phone calls are concerned that is the system prompting you, not me, and they do cost more money, I prefer text but in some cases a phone call is required.

Ask Your Own Ford Question
Ford Mechanic: Mechanic01, ASE Certified Technician replied 11 months ago

the ol truck in the ditch problem, ahhh classic, kids will be kids huh, so are you getting any codes?

Ask Your Own Ford Question
Customer reply replied 11 months ago
No codes
Ford Mechanic: Mechanic01, ASE Certified Technician replied 11 months ago

I would start with the basics and do a throttle body clean and maf sensor clean with a computer reset and see what that does

Ask Your Own Ford Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a ford mechanicLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask Ron Your Own Question
Ron
Ron
Ron, ASE Certified Technician
Category: Ford
Satisfied Customers: 25,022
25,022 Satisfied Customers
Experience: 23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs

Ron 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

25,022 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

28,993 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.

Mike V.

Mike V.

Auto Service Technician

1,556 satisfied customers

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

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.

< Previous | Next >

Related Ford Questions
I have a 2008 ford F150 Lariat 5.4 flex fuel. starts great
I have a 2008 ford F150 Lariat 5.4 flex fuel. starts great but once warmed up it sounds like its missing and idles very rough. … read more
Chris (aka- Moose)
Chris (aka- Moose)
Technician
Vocational, Technical or Trade School
28,993 satisfied customers
2006 f150 has p2198 and p2195 codes. It idles rough and
2006 f150 has p2198 and p2195 codes. It idles rough and smokes a while but then suddenly runs perfect and then after a while the same. And while driving the same it runs rough and suddenly run great. … read more
Eric
Eric
Retired
N/A
14,436 satisfied customers
Second opinion] rough idle. surges when put in park, other
Second opinion] rough idle. surges when put in park, other than that runs good … read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
25,022 satisfied customers
Rough idle. surges when put in park, other than that runs
rough idle. surges when put in park, other than that runs good … read more
Mike V.
Mike V.
Auto Service Technician
Subaru and Nissan factory training.
1,556 satisfied customers
It's junk. Rough idle after warm up, Once I give it gas it
Spent over 7 grand and a new motor at local garage. Still isn't fixed … read more
James
James
Bachelors degree automotive technology with minor in diesel
3,578 satisfied customers
Have a 2005 F150 4x4, 5.4 engine. the truck has 240,000 *****
have a 2005 F150 4x4, 5.4 engine. the truck has 240,000 ***** ***** on it. at idle you cannot not tell the engine is running it is so smooth. My problem is rough idle or engine will die, usually after… read more
eauto
eauto
self employed
High School or GED
74 satisfied customers
2005 ford f150 4.6l runs rough at idle, have replaced spark
2005 ford f150 4.6l runs rough at idle, have replaced spark plugs and the boots, new fuel filter, checked for vacuum leaks, compression is ok, engine smooth's out as soon you are off idle, also cleane… read more
zzdaryl
zzdaryl
Lead Auto Tech
Some college and advanced training
4 satisfied customers
F150: 1989 Ford f150 4x4 4.9 ltr. The truck was running fine
1989 Ford f150 4x4 4.9 ltr. The truck was running fine when I parked it. Started it up and it ran really rough and wanted to die. Then started to run normally but got down the road and started surging… read more
Fordanswerman
Fordanswerman
Ford Senior Master Technician retired
Associate Degree
2,912 satisfied customers
1989 Ford F150 XLT: Hey guys, I..Lariat..4x4..Speed Manual..Overdrive
Hey guys, I drive a 1989 Ford F150 XLT Lariat 4x4. 4.9L 300 I6 5 Speed Manual Overdrive. My fuel economy seems to be much lower than normal. It seems to idle a little rough as if it is about to die so… read more
Dieseljunky2
Dieseljunky2
Locomotive Mechanic
Ford Certified Technician
310 satisfied customers
2008 ford f150: rough idle..drivers side..running rough..cam sensor
my 2008 ford f150 gets a rough idle sometimes that sounds like a timing issue on drivers side when you give the 5.4 liter 3v a little gas it quits and smooths out then when the rpm's drop sometimes it… read more
Marty
Marty
Vocational, Technical or Trade Scho
568 satisfied customers
Hi, Im thinking vaccuum leak.Here is the info.2004 Ford F150 5.
Hi, I'm thinking vaccuum leak. Here is the info. 2004 Ford F150 5.4 engine 4X4. Idle is rough, but is not consistent. Seems worse when Im in gear. At approx. 1100 Rpms when say driving in a parking lo… read more
Pavlin Koev
Pavlin Koev
Diagnostic Technician
High School or GED
2,687 satisfied customers
Ford F-150 Lariat: w/5.4L triton v8 vin: 5..my truck..misfiring
Hello, my name is XXXXX XXXXX a 04 Ford F-150 Lariat w/5.4L triton v8 vin: 5. My problem is that the idle on my truck is very rough. it's been like that since i bought it, almost two years now. it's n… read more
BOBBYSS
BOBBYSS
TECHNICIAN/ADVISOR
Associate Degree
8,343 satisfied customers
1997 f150 5.4 engine my truck is stalling at stops and idles bad. it surges when I come
1997 f150 5.4 engine my truck is stalling at stops and idles bad. it surges when I come to a stop before it stalls.… read more
Fordanswerman
Fordanswerman
Ford Senior Master Technician retired
Associate Degree
2,912 satisfied customers
1989 Ford F150 5.0L automatic 4x4. Will not pass emissions test.
1989 Ford F150 5.0L automatic 4x4. Will not pass emissions test. High HCppm at 2194 at idle and 2007 at 2500 RPM. No power and misses. Rough idle. Up and down. Just put in new plugs and filters. Has c… read more
Dieseljunky2
Dieseljunky2
Locomotive Mechanic
Ford Certified Technician
310 satisfied customers
2004 f150 lariat: 4x4 with the 5.4 engine that was purchased
I have a 2004 f150 lariat 4x4 with the 5.4 engine that was purchased in Denver Co. While in Denver the truck got between 17 and 20 mpg. On trips to seattle and after moving to Seattle it only gets 9 m… read more
rpmdiag
rpmdiag
High school
7,771 satisfied customers
2001 f150: 2500 rpm..park and stays at2500 rpms no fault codes anyone
this just started this weekend i have a 2001 f150 5.4 temp outside was in single didget started truck to warm up idle about 1000 rpm's put into gear with foot on brake idle increases to 2500 rpm put i… read more
Richard
Richard
ASE Certified Technician
Vocational, Technical or Trade Scho
1,524 satisfied customers
1998 Expedition: 5.4 engine..I just drove 800 miles from Colorado
I have 1998 Expedition, 5.4 engine. I just drove 800 miles from Colorado to Arizona. Ran great. I just used the Pro-Clean system to clean injectors and cleaned, re-oiled the K&N filter. I get to city … read more
Richard
Richard
ASE Certified Technician
Vocational, Technical or Trade Scho
1,524 satisfied customers
2005 Ford F150: idleing..the gasoline, fuel filter, or does it..tune
I own a 2005 Ford F150 5.4 v8, it has just gone over 60000 miles and at times seems to be idleing a little rough. Could it be the gasoline, fuel filter, or does it require a tune up, if so what does a… read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
25,022 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