Ford

Have Ford Questions? Ask a Mechanic for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

Ford

E350: I have a 98 e350 that is bucking under load sometimes

Customer Question
I have a 98 e350...
I have a 98 e350 that is bucking under load sometimes seems worse on hot days ! I have spark knock too! Replaced plugs ran better threw 3 mis fires replaced cops ran good a day! Bucking again replaced dpfe ran good a day bucking again ! Cleaned maf sensor ( aluminum was kind of pitted in a few places) ran good a day bucking again ! Threw lean on bank 1 & 2 code replaced O2 sensors ran good a few hours bucking again help
Submitted: 2 years ago.Category: Ford
Show More
Show Less
Ask Your Own Ford Question
Customer reply replied 2 years ago
Small 90 degree tube under throttle body has been replaced and pcv valve. Egr tube also replaced
Answered in 13 hours by:
6/25/2015
Ford Mechanic: Chris (aka- Moose), Technician replied 2 years ago
Chris (aka- Moose)
Chris (aka- Moose), Technician
Category: Ford
Satisfied Customers: 49,128
Experience: 16 years experience
Verified
Being that you have lean codes, can you check for vacuum leaks. If you need to know how to, let me know. Pinging can be related to head temps, have you serviced the cooling system and replaced the thermostat? Have you monitored the fuel pressure while driving to see if its dipping low?Have you cleaned the fuel injectors? You want a excellent 5 star answer & I would like to be rated the same for providing it. Consider I don't know your skill level & I can't see, smell, hear, or touch the vehicle. It may take a few back and forth replies. Try your best to respond with good detail so I can do the same. I normally log in at 3pm and work late. A rating is required. Your rating me, what I type. I am not an employee of this website, nor have control over the fees or the time it took to get a response. If you rate negative or not at all you still paid, but I get nothing. I want you pleased with me and my efforts, so let me know if your experience here has come up short.Thanks Chris
Ask Your Own Ford Question
Customer reply replied 2 years ago
Thermostat has not been replaced and cooling system has been flushed a few weeks ago! I have noticed the temp gauge has been lower than usual for about a month just over the second mark and holding plan on checking fuel pressure today! My husband has visually checked for vacuum leak but nothing more
Ford Mechanic: Chris (aka- Moose), Technician replied 2 years ago
Have your husband idle the engine and spray short bursts of flammable brake cleaner around all seals, gaskets, components, hoses, pipes, connections from the heads to the air filter, everything there is under vacuum. If a leak is hit the rpms will increase.
Ask Your Own Ford Question
Ask Chris (aka- Moose) Your Own Question
Chris (aka- Moose)
Chris (aka- Moose)
Chris (aka- Moose), Technician
Category: Ford
Satisfied Customers: 49,128
49,128 Satisfied Customers
Experience: 16 years experience

Chris (aka- Moose) 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

49,128 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
We have another problem. We changed the thermostat in this
We have another problem. We changed the thermostat in this 1992 ford f250. And it does not read on the dash. What can this be?… read more
eauto
eauto
self employed
High School or GED
74 satisfied customers
No heat ford expendition. Have not checked thermostat. fuild
have not checked thermostat. fuild was a little low added still no heat … read more
Chris (aka- Moose)
Chris (aka- Moose)
Technician
49,128 satisfied customers
Steel hose from thermostat housing to motor in 99 taurus is
steel hose from thermostat housing to motor in 99 taurus is rusted i need the name of this part,and … read more
Chris (aka- Moose)
Chris (aka- Moose)
Technician
49,128 satisfied customers
I am having the same fuel injector curse it looks like many
I am having the same fuel injector curse it looks like many others have had. Truck is a 1990 F250 with a 7.5L/460. I have spark and compression and have set timing. I have check all grounds that I can… read more
Chris (aka- Moose)
Chris (aka- Moose)
Technician
49,128 satisfied customers
Just changed the thermostat in my 03 ford 3escape now when
just changed the thermostat in my 03 ford 3escape now when it warms up the radiator fans run on high all the time. Did not used to do this … read more
tim37857
tim37857
Mechanic
High School or GED
71 satisfied customers
I have no heat. Replaced the thermostat, replaced the blend
replaced the thermostat, replaced the blend door replaced the heater control valve … read more
Jaybird61
Jaybird61
Master Automotive Mechanic
1,913 satisfied customers
Working on a 2001 ford explorer no heat, changed thermostat.
Working on a 2001 ford explorer no heat, changed thermostat. Blows warm air from time to time. Good heat at heater hoses. What should I check next?… read more
Chris (aka- Moose)
Chris (aka- Moose)
Technician
49,128 satisfied customers
How can I find the fuel injectors on my Mercury Grand
How can I find the fuel injectors on my Mercury Grand Marquee 2001? Can I clean the injectors myself? Or must I spend 300 dollars plus at the Ford Garage Service Center. William Hayward… read more
Fordster
Fordster
Mastertech
Vocational, Technical or Trade Scho
2,650 satisfied customers
Changed thermostat and still get no heat. Coolant is down a
Changed thermostat and still get no heat JA: Have you checked to make sure the thermostat is working? What about the coolant level? Customer: Coolant is down a little JA: What is the model/year of you… read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
The coolant line from the thermostat to the reservoir broke
The coolant line from the thermostat to the reservoir broke ant the T connection. I have it apart but need to know the easiest way to get the new line around behind the engine and the torque specs for… read more
Dan
Dan
Dealership Technician
183 satisfied customers
Replaced radiator and thermostat but still no circulation
replaced radiator and thermostat but still no circulation top hose get hot lower one does not and hose to heater core stays cool … read more
Lou P. master tech
Lou P. master tech
Mercedes Benz master tech
Bachelor's Degree
649 satisfied customers
No power is going to the fuel Injector in my 2008 Ford
No power is going to the fuel Injector in my 2008 Ford Fusion … read more
Chad Farhat
Chad Farhat
Owner
Associate Degree
4,012 satisfied customers
I think my fuel injectors are leaking gas after I installed
I think my fuel injectors are leaking gas after I installed a new coil. And I don't think the coil is set firmly on spark plugs...how can I correct?… read more
6Bucs
6Bucs
Senior Master Tech
Associate Degree
3 satisfied customers
I was changing my spark plugs and unhooked my fuel injector
i was changing my spark plugs and unhooked my fuel injector sencer and loosen the bolts also then alittle gas came out then i put every thing back together and started it and gas was spraying every wa… read more
heavy_chevy_396
heavy_chevy_396
Vocational, Technical or Trade Scho
2,518 satisfied customers
Changed thermostat in 1996 ford 6 24 valve engine and it
changed thermostat in 1996 ford 6 24 valve engine and it still over heats there is no water in the oil or oil in the water … read more
tim37857
tim37857
Mechanic
High School or GED
71 satisfied customers
P0272, fuel injector 4 is bad and code p2284. icp sensor.
p0272, fuel injector 4 is bad and code p2284. icp sensor. Trying to figure all this out. problem is it runs like crap when cold. after 10 minutes or so it runs better. Ford put revx in it 2 years ago … read more
kalamykid
kalamykid
Pactor automotive
Vocational, Technical or Trade Scho
97 satisfied customers
Does Ford recommend replacing all fuel injectors when an
Does Ford recommend replacing all fuel injectors when an engine is overhauled/replaced? If so, where? … read more
David Craig
David Craig
OWNER/MECHANIC
Associates
3,943 satisfied customers
It needs fuel injectors replaces and lines cleaned, as well
it needs fuel injectors replaces and lines cleaned, as well as intake redone … read more
Gunvir Singh
Gunvir Singh
1,706 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