Ford

Have Ford Questions? Ask a Mechanic for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

Ford
This answer was rated:

Ford econoline 1987 with 7,9 L motor sonetime after running

a while when it is...
Ford econoline 1987 with 7,9 L motor sonetime after running a while when it is in need of power like clining a hill or against good wind the moror lacks power interminintly (sorry for my english)
Show More
Show Less
Ask Your Own Ford Question
Customer reply replied 9 months ago
The controler was chage lately and the carburator amd fuel pump last year
Customer reply replied 9 months ago
Sorry its a 7,5 liter motor
Answered in 2 hours by:
3/9/2017
Jaybird61
Jaybird61, ASE Certified Master Technician
Category: Ford
Satisfied Customers: 2,088
Experience: Automotive Instructor at Palm Beach State College
Verified

Hi, My name is***** should replace the fuel filter at the carburetor first since they are very small for the amount of fuel going through it and see if power is improved?

Ask Your Own Ford Question
Customer reply replied 9 months ago
All filters were replace last summer

If you have any sediment in the fuel tank it will get into this fuel filter. I still recommend replacing the filter and checking the fuel sample for any water in the fuel.

Ask Your Own Ford Question

You can remove the filter and checked to see if it is clogged first from sediment from inside the fuel tank. You may want to put a large clear filter before the fuel pump on the engine to help filter the larger particles sine it will be easier to replace than the carburetor filter.

Ask Your Own Ford Question
Customer reply replied 9 months ago
im not a good nechanic but the pump is in the tank

My apologies. I just realized that Ford went to the in tank pump on this year. Forget what i said about the addition of the inline filter.

Ask Your Own Ford Question
Customer reply replied 9 months ago
Would rhe EGr valve do that same symptoms since it would run well with no hesitation at all, running 50-55 mph and then would start some hesitation and its ben doing that occasionnaly sine last year but lately more frequently

The EGR even if it is wide open will not cause any issues on the the engine at the higher speeds. The problem sounds like you either have a clogged fuel filter or the fuel pressure and volume is not up to specifications from fuel tank pump.

Ask Your Own Ford Question

Do you have single or dual fuel tanks?

Ask Your Own Ford Question
Customer reply replied 9 months ago
Since im on the road far away from home ( actualy in Lake Havasu AZ ) and the problem seams like getting more often i have a single tank

Do you have any issues with spark knock or backfires?

Ask Your Own Ford Question
Customer reply replied 9 months ago
No that happened on the way down the engine stopped and a backfire sometime hapens but it was the controler that was in default when it was change a drove nearly a 100 miles and has a small hesitation once while climming an hill it didnt do it for a few days but lately more often

What controller are you talking about? The ignition control module?

Ask Your Own Ford Question
Customer reply replied 9 months ago
a grey box on the driver side
Customer reply replied 9 months ago
But those kind of lack of power or hesitation were there even before I had ignition control module replaced always climbing an hill or strong winds facing

Okay. You can try and replace the fuel filter but the backfires may have damaged the power valves in the the carburetor. Have you notices an increase in the fuel consumption?

Ask Your Own Ford Question
Customer reply replied 9 months ago
Not realy i eould have to look at my records

Okay then a hesitation or jerking on acceleration can be the fuel filter or the carburetor float adjustments. This is all I have at this time.

Ask Your Own Ford Question
Customer reply replied 9 months ago
Tanks for your help

Try replacing filter and go from there.

Jaybird61
Jaybird61, ASE Certified Master Technician
Category: Ford
Satisfied Customers: 2,088
Experience: Automotive Instructor at Palm Beach State College
Verified
Jaybird61 and 87 other Ford Specialists are ready to help you
Ask your own question now
Customer reply replied 9 months ago
Changed two fuel filter on the line under the truck and changed the air filter and troed it and is worst than before actualy i had an hard time getting over 50 mph the engine now not only jerks it fells more like it is before i could pressthe pedal and get a kind pf kickdown now if i do that it dies nearly

You are going to need to have the fuel pressure checked for proper pressure and volume to the carburetor. The catalyst should also be checked for excessive back pressure. Both of these could cause the loss of power. Both should be checked by a qualified mechanic with the proper tools.

Ask Your Own Ford Question
Customer reply replied 9 months ago
I have notice that the warmer the weather (sundy it was over 90 F) the more often is the lack of power and when i loosened my gas cap it did go up to 60 mph while jjust before i couldnt reach over 45! But the again while o was climbing a huge hill i was loosing constintly power

I still think you are not getting good fuel pressure and volume to the carburetor. Have pressure and volume checked. With the weather being warmer you need less fuel to get the same amount of power.

Ask Your Own Ford Question
Customer reply replied 9 months ago
The carburator filter and all the others on the fuel line were changed, and since it started heating since yesterday meaning temoerature went at the top of normal, the thermostatic fan was replaced being way too used according to the me hanic but after all this work it stills jerk at 50 and temp still high

You did not mention the temperature rising before. The problem sounds like a restriction in the exhaust. This would account for the loss of power and the temperature of the engine to go high. Have the exhaust catalyst and muffler checked for blockage. You will need an exhaust shop or dealer check for excessive back pressure indicating blockage in the exhaust.

Ask Your Own Ford Question
Ask Jaybird61 Your Own Question
Jaybird61
Jaybird61
Jaybird61, ASE Certified Master Technician
Category: Ford
Satisfied Customers: 2,088
2,088 Satisfied Customers
Experience: Automotive Instructor at Palm Beach State College

Jaybird61 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

24,252 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

28,078 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

1,365 satisfied customers

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

< Previous | Next >

Related Ford Questions
1998 F-150 4.6L OIL IN EXHAUST MANIFOLD**** i've had and
1998 F-150 4.6L OIL IN EXHAUST MANIFOLD**** i've had and exhaust leak for a while now. like a slight ticking noise coming from the passenger side. It got really bad today. ive taking the tire and shro… read more
BOBBYSS
BOBBYSS
TECHNICIAN/ADVISOR
Associate Degree
8,343 satisfied customers
You Had to have new exhaust valves in 2011 Ford Escape. #2
You Had to have new exhaust valves in 2011 Ford Escape. #2 cylinder misfire was the code originally.first replaced plugs and coils compression was a little bit lower but not extreme. I then took it to… read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
24,252 satisfied customers
Staying in drive to clean exhaust system f250 2009 6.4.
staying in drive to clean exhaust system f250 2009 6.4 … read more
Chris (aka- Moose)
Chris (aka- Moose)
Technician
Vocational, Technical or Trade School
28,078 satisfied customers
It is backfiring through the. My engine is backfiring
Yes I am. I turned the engine by hand to 0 degrees on the crank and I took the distributor cap off and adjusted it to where the 1 cylinder plug is above the rotor and it backfires through the carburetor … read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
24,252 satisfied customers
I have a pyrometer where the exhaust comes from the turbo.
I have a pyrometer where the exhaust comes from the turbo. At what temperature is it safe to run my 2001 F550 with a 7.3 diesel?… read more
TIM MOHR
TIM MOHR
SHOP OWNER
Master's Degree
8,037 satisfied customers
What is the exhaust volume of a police ford explorer engine
What is the exhaust volume of a police ford explorer engine per minute at the usual 600 rpm idle speed? … read more
Chris (aka- Moose)
Chris (aka- Moose)
Technician
Vocational, Technical or Trade School
28,078 satisfied customers
I have a 95 250 with a manifold exhaust leak that i had
I have a 95 250 with a manifold exhaust leak that i had repaired once but is back. … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
What is the torque pattern and torque amount for the exhaust
What is the torque pattern and torque amount for the exhaust manifold bolts on a 2003 Ranger 2.3 L engine? … read more
Dan
Dan
Automotive Technician
Vocational, Technical or Trade Scho
25 satisfied customers
2004 f250 6.0 diesel. Smoke at exhaust tail pipe smells like
2004 f250 6.0 diesel. Smoke at exhaust tail pipe smells like antefreeze and is using coolant with no external leaks. Any test to do to make sure is a head gasket? Thanks… read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
24,252 satisfied customers
I have two issues since having my truck serviced for exhaust
I have two issues since having my truck serviced for exhaust manifolds. The a/c does not work and the radio is powered on but no sound. … read more
eric remington
eric remington
FORMER SHOP OWNER/TECHNICIAN/INSPECTOR
associates degree
293 satisfied customers
My 2008 ford f250 just sent showed "cleaning exhaust pipe"
my 2008 ford f250 just sent showed "cleaning exhaust pipe" as a message. Should I be alarmed? … read more
Kevin
Kevin
workshop foreman /master tech/mot tester
0 satisfied customers
Just purchased and need to replace right side exhaust
Just purchased and need to replace right side exhaust manifold. Been a few years since I've worked on a vehicle. And not sure of the process if one of the studs breaks in the head. … read more
David Craig
David Craig
OWNER/MECHANIC
Associates
4,072 satisfied customers
Xr6 BA turbo sounds like, Sounds like exhaust leak when
Sounds like exhaust leak when should be spooling nd boosting … read more
Gary
Gary
Senior Technician
Vocational, Technical or Trade School
48 satisfied customers
Exhausted fluid system fault warning on for 10 miles and
Exhausted fluid system fault warning on for 10 miles and went off. What does it mean? … read more
Anthony
Anthony
Master Automobile Technician
Vocational, Technical or Trade Scho
8,789 satisfied customers
I had my exhaust manifold replaced on my 2005 F150 Lariat
I had my exhaust manifold replaced on my 2005 F150 Lariat with the 5.4 and after I got at check engine light that said cam sensor position so i replaced both and still comes on, truck has lost power a… read more
roy
roy
Associate Degree
3 satisfied customers
Smoke coming out of exhaust, 33000... haven't noticed a
It's a lease I have to return in the next week or oso so … read more
Edward Clayton
Edward Clayton
Associate Degree
1,033 satisfied customers
The "cleaning exhaust filter" message came on my 2011 f250
The "cleaning exhaust filter" message came on my 2011 f250 super duty diesel. Then the "drive to clean filter" message came on several times. After that the check engine light came on and it feels lik… read more
Chris (aka- Moose)
Chris (aka- Moose)
Technician
Vocational, Technical or Trade School
28,078 satisfied customers
Gas coming out of exhaust, engine ran rough stopped and
engine ran rough stopped and would not start replaced purage value … read more
Jared D
Jared D
Shop Supervisor
Bachelor\u0027s
3 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