Ford

Have Ford questions? Ask a mechanic for answers ASAP

Ask an Expert,
Get an Answer ASAP!

F350 v10 bogging down majority, replaced o2 sensors, mafs,

Customer Question
F350 v10 bogging down...

F350 v10 bogging down majority, replaced o2 sensors, mafs, fuel filter in line and and air filters,

Mechanic's Assistant: Have you located all of the vehicle's oxygen sensors? Are the wires leading to and from each intact and in good shape?

Only 2 in it and the are Todd

Mechanic's Assistant: What year is your F350?

04

Mechanic's Assistant: Are you fixing your F350 yourself? What have you tried so far?

Replaced 02 sensors, fuel filter in line, and air filter and mass airflow sensor

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

It idles fine but rev up past 5000 and it Boggs majorly

Submitted: 11 months ago.Category: Ford
Show More
Show Less
Ask Your Own Ford Question
Answered in 1 minute by:
9/16/2017
Ford Mechanic: Dan, Technician replied 11 months ago
Dan
Dan, Technician
Category: Ford
Satisfied Customers: 26,018
Experience: Independent Shop Experience, 2 Year Automotive Diploma, & Access to Information Database
Verified

Hello, my name is ***** ***** I'm here to help get your problem solved.

Ask Your Own Ford Question
Ford Mechanic: Dan, Technician replied 11 months ago

This is usually a sign of a clogged catalytic converter. Completely remove front oxygen sensors from exhaust to relieve pressure, if that allows rpm to go higher you know the converter is clogged and needs to be replaced. Let me know if you have questions, thanks.

Ask Your Own Ford Question
Customer reply replied 11 months ago
Exhaust is off
Ford Mechanic: Dan, Technician replied 11 months ago

Why is exhaust off? Just wondering. Also, is it setting any codes?

Ask Your Own Ford Question
Customer reply replied 11 months ago
Removed the exhaust already
Ford Mechanic: Dan, Technician replied 11 months ago

Is it setting any codes?

Ask Your Own Ford Question
Customer reply replied 11 months ago
It was suggested from a mechanic friend of mine, I took it off after the sensors and before the converter, it popped bank 1 and 2 lean
Ford Mechanic: Dan, Technician replied 11 months ago

I think you probably have a weak fuel pump or restricted filter. Fuel pressure should go around 45 psi under hard acceleration if not replace filter and check again, if still low replace fuel pump. Let me know if you have more questions. Thanks.

Ask Your Own Ford Question
Customer reply replied 11 months ago
When it started I was going highway speeds and it just started bogging to the point of 2 miles an hour
Ford Mechanic: Dan, Technician replied 11 months ago

Between bogging and lean codes I definitely think your fuel pump has failed or filter is clogged, let me know how it goes. Thanks.

Ask Your Own Ford Question
Ford Mechanic: Dan, Technician replied 10 months ago

Ever get it figured out? Please do not forget to rate answer. Thanks.

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 Dan Your Own Question
Dan
Dan
Dan, Technician
Category: Ford
Satisfied Customers: 26,018
26,018 Satisfied Customers
Experience: Independent Shop Experience, 2 Year Automotive Diploma, & Access to Information Database

Dan 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

25,182 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

29,223 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

1,591 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 no power at takeoff or under load. Sounds like engine
I have no power at takeoff or under load. Sounds like engine is missing somewhat. Idles fine now, after the work I have done but can't figure out why no power when the accelerator is pressed... I have… read more
AMEDEE
AMEDEE
AUTOMOTIVE TECHNICIAN
Vocational, Technical or Trade Scho
9,105 satisfied customers
My 2000 mustang gt with a 4.6L v8 has lean codes P0171 and
Hi my 2000 mustang gt with a 4.6L v8 has lean codes P0171 and P0174. The long term fuel trims are fine until i accelerate then they peg at around 30%. It drives like a dog and has major power loss. I … read more
Jaybird61
Jaybird61
Master Automotive Mechanic
2,285 satisfied customers
My 2003 ford focus will not rev up. I have checked the fuel
my 2003 ford focus will not rev up. I have checked the fuel pressure and it is at 45psi, when i try to rev up the engine it will bog out real bat. I have also checked the clatic converter and it is go… read more
Chris (aka- Moose)
Chris (aka- Moose)
Technician
Vocational, Technical or Trade School
29,223 satisfied customers
Ford F350 Super Duty: 1999 F350 6.8L V10. PO171/174 BOTH B1/B2
1999 F350 6.8L V10. PO171/174 BOTH B1/B2 ARE AT DOUBLE DIGITS WHILE B1/2 B2/2 ARE NEAR ZERO. ITS BEEN SO LONG CAN'T REMEMBER THE CAUSE, VACUUM LEAK OR EGR. CANT FIND ANY LEAKS AND THE EGR WORKS FINE.… read more
david
david
Heavy Duty Repair Mechanic
Vocational, Technical or Trade Scho
495 satisfied customers
2004 Ranger: 79,000 miles..Fuel filter and air filter new, spark plugs
2004 Ranger i-4, 4x2 with 79,000 miles, engine chugs/sputters under acceleration, idles fine. Code PO456 (Evap control system, very small leak detected) was found. Fuel filter and air filter new, spar… read more
AMEDEE
AMEDEE
AUTOMOTIVE TECHNICIAN
Vocational, Technical or Trade Scho
9,105 satisfied customers
Ford F-350 Super Duty Lariat On My 99 F350 4x4 V10 with 59K
On My 99 F350 4x4 V10 with 59K miles a K&N cold air intake, BBK 65mm throttle body, chip and Borla Exaust My scanner gave these cods 03-PO171 & 02-PO174 I just put new plugs, O2 sensors, pcv valve and… read more
b-kitchener
b-kitchener
Ford dealer senior master technician
Vocational, Technical or Trade Scho
206 satisfied customers
1997 mustang: down , took it to good mech he said vac leak it drove
my 1997 mustang starting to bogg down , took it to good mech he said vac leak it drove good for couple days started to do it again puy it up for a couple days got it out drove great, put it up 5 days … read more
AMEDEE
AMEDEE
AUTOMOTIVE TECHNICIAN
Vocational, Technical or Trade Scho
9,105 satisfied customers
Rev..throttle body..misfire in cylinder 4 and 02 sensors malfunction
engine runs really rough and doesn't idle. when u can get it to rev up a bit it makes a popping noise; sounds like it is coming from the throttle body. computer codes tell me misfire in cylinder 4 and… read more
Marty
Marty
Vocational, Technical or Trade Scho
568 satisfied customers
1994 Ford F150: Runs fine while in idle..control module..coil..rotor
1994 Ford F150 having trouble with the truck bogging down after you start driving it. Runs fine while in idle, revv it up to a high RPM with no problem, put it in gear and start driving and after a fe… read more
AMEDEE
AMEDEE
AUTOMOTIVE TECHNICIAN
Vocational, Technical or Trade Scho
9,105 satisfied customers
ford excursion: with headers, intake, exhaust, chip falls..trans..o2
2002 v10 ford excursion with headers, intake, exhaust, chip falls on its hesitates and sputters when punched. Changed fuel, trans, air filters, plugs, throttle position sensor, fuel injector cleaner a… read more
RICHE
RICHE
TEAM LEADER AND SENIOR MASTER TECHNICIAN
Associate Degree
266 satisfied customers
1994 Ford Tempo: V6..cat and unplugged the o2 sensors..ran fine until
I have a 1994 Ford Tempo, V6, 3.0. About 4 months ago I removed the cat and unplugged the O2 sensors. Everything ran fine until recently. The car tends to bogg down and surge for no reason. It does no… read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
25,182 satisfied customers
99 explorer: starts and idles fine, revs..accelerate..throttle
I have a 2000 and a 99 explorer with same synptoms. starts and idles fine, revs with no load perfect but when trying to accelerate they bog terribly, taking forever to get up to speed once there they'… read more
AMEDEE
AMEDEE
AUTOMOTIVE TECHNICIAN
Vocational, Technical or Trade Scho
9,105 satisfied customers
2001 Excursion: 174 trouble codes..idles..rough..speeds..fuel filter
I am getting PO171 and 174 trouble codes on my 2001 Excursion. My truck idles very rough but seems to run fine at normal speeds. If the issue were a fuel filter, would I not have preformance issues th… read more
APenland
APenland
Ford Senior Master Technician
Associate in Industrial Management
3,186 satisfied customers
Ford Ranger: hill..Engine wont rev past 2200 rpm..driveway
02 Ford Ranger is losing, i.e. lost all power. Wont climb any degree of hill. Engine wont rev past 2200 rpm before bogging out, even just sitting in driveway. Changed fuel pump this morning and still … read more
Fordanswerman
Fordanswerman
Ford Senior Master Technician retired
Associate Degree
2,912 satisfied customers
F350: V10..500 rpm..this be a vacuum or pcv valve problem
My F350 6.8L V10 changes about 3-500 rpm both at idle and while driving. Could this be a vacuum or pcv valve problem and if so where should I look?… read more
Scottdagoalie
Scottdagoalie
Vocational, Technical or Trade Scho
1,663 satisfied customers
2006 ranger: air filter box was left..few minutes..stalled..sputters
I have a 2006 ranger 2.3l and the air filter box was left open when i was driving. It drove fine for a few minutes then it was reved high and it suddenly stalled. Now it will start and idle but when i… read more
FMT2282
FMT2282
Shop Forman
Associate Degree
209 satisfied customers
f250: loses power..idles ok. will not turn on check engine light...v10
engine loses power on exceleration. idles ok. will not turn on check engine light. 2004 6.8 v10 f250.… read more
Steve
Steve
Vocational, Technical or Trade Scho
96 satisfied customers
95 mustang: 3.8l, starts fine, idles a little ruff..drivers side..reg
I have a 95 mustang 3.8l, starts fine, idles a little ruff but when given more gas falls on it's face and then backfires from the drivers side. I have changed plugs wires coilpack, fuel presser reg. F… read more
RIP
RIP
Lead Technician/ JA Car Category Mentor
High School or GED
452 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