Ford

Have Ford questions? Ask a mechanic for answers ASAP

Ask an Expert,
Get an Answer ASAP!

1994 ford ranger 2.3l manual engine has 40 psi on the rail…

Customer Question
1994 ford ranger 2.3l manual...
1994 ford ranger 2.3l manual engine has 40 psi on the rail when key on
I have replaced the fuel pump modual fuel filter, gas , clean injectors, starts right up then slows and dies cannot add accelerator or it wil die,runs rough at idle. But when I disconnect the air intake hose from the air filter it runs perfect, I took top of air filter housing all looks good , when truck is running , I go and put air hose on filter housing top and I dies, and it's not even mounted to the lower half of the housing , grey motor craft box on air filter housing , I don't know what it is or does , but my problem might be there. Please help
Submitted: 2 years ago.Category: Ford
Show More
Show Less
Ask Your Own Ford Question
Customer reply replied 2 years ago
On another note I can completely over the air horn at the manifold and truck stays running , telling me the idle air sevo is working! Ok I'll buy a mass air flow sensor
Ford Mechanic: cloe0626, Auto Mechanic replied 2 years ago

you need anything else let me know please be sure to rate my service when you get the chance

Ask Your Own Ford Question
Customer reply replied 2 years ago
I replaced the mass air flw sensor, and no change does the same thing starts and then dies, I have replaced the pump,filter,and cleaned the injectors, has 40 psi on the rail replaced mass air flow sensor,has good spark on all 8 only runs when you remove the air horn hose and keep it from sucking from the MAFS.
Ford Mechanic: sprinkles08, ASE Certified Technician replied 2 years ago
sprinkles08
sprinkles08, ASE Certified Technician
Category: Ford
Satisfied Customers: 24,338
Experience: ASE Master and Advanced level certified. Factory trained with 17 years dealership experience
Verified

Hello and welcome to JustAnswer!

The first step in diagnosing the problem accurately is to check for fault codes.

Do you know if any codes are setting?

Are you able to monitor data?

Does the exhaust smell as if it's running rich or lean?

Ask Your Own Ford Question
Customer reply replied 2 years ago
No codes , cannot, monitor
Customer reply replied 2 years ago
Exaust is prob lean
Ford Mechanic: sprinkles08, ASE Certified Technician replied 2 years ago

How did you determine no codes are setting?

Ask Your Own Ford Question
Customer reply replied 2 years ago
No check engine light
Ford Mechanic: sprinkles08, ASE Certified Technician replied 2 years ago

You didn't actually check for codes then, correct?

Ask Your Own Ford Question
Customer reply replied 2 years ago
Koeo code 111 is what I get obd1.
Ford Mechanic: sprinkles08, ASE Certified Technician replied 2 years ago

You mentioned covering something and the truck stayed running. Was it the throttle body you covered?

Ask Your Own Ford Question
Customer reply replied 2 years ago
I took off the air hose to air cleaner from the manifold truck runs , I can completely cover the air intake at the manifold and it still runs ,hook the hose up to the MAFS and it dies
Ford Mechanic: sprinkles08, ASE Certified Technician replied 2 years ago

If you can cover the throttle body and the engine doesn't die then you have a vacuum leak, it's running on air that isn't coming through the throttle body.

Ask Your Own Ford Question
Customer reply replied 2 years ago
Is it not going through the idle air servo?
Customer reply replied 2 years ago
Has mass suction cannot hear a vac leak I thought that it was sucking the air through the servo?
Ford Mechanic: sprinkles08, ASE Certified Technician replied 2 years ago

All air entering the engine comes through the throttle body including the IAC's supply. If you cover the throttle body and the engine still runs then you have a vacuum leak.

Ask Your Own Ford Question
Customer reply replied 2 years ago
Ok , so if I cover the air intake at the throttle body with my hand the engine will still run but if I also plug the PVC hose also it will die and I hear no vac leaks.
Ford Mechanic: sprinkles08, ASE Certified Technician replied 2 years ago

I'm a full time tech and at work this afternoon, I'll get back to you as quickly as I can!

Ask Your Own Ford Question
Ford Mechanic: sprinkles08, ASE Certified Technician replied 2 years ago

Is your oil cap or the PCV makeup air hose to the valve cover off?

Ask Your Own Ford Question
Customer reply replied 2 years ago
Do you have face time ?
Ford Mechanic: sprinkles08, ASE Certified Technician replied 2 years ago

I do not.

Ask Your Own Ford Question
Customer reply replied 2 years ago
There is a Motorola dis box bolted to manifold injector harness goes through it,not sure what it does .im lost don't know what it could be ?
Ford Mechanic: sprinkles08, ASE Certified Technician replied 2 years ago

If you can upload a picture of what you're questioning I can hopefully identify it.

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 sprinkles08 Your Own Question
sprinkles08
sprinkles08
sprinkles08, ASE Certified Technician
Category: Ford
Satisfied Customers: 24,338
24,338 Satisfied Customers
Experience: ASE Master and Advanced level certified. Factory trained with 17 years dealership experience

sprinkles08 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
1994 ford ranger 2.3l manual trans 8 spark plugs. Engine
1994 ford ranger 2.3l manual trans 8 spark plugs . Engine starts right up then dies it always starts right up but will not idle and dies when you push the gas pedal , I replaced the fuel filter and th… read more
sprinkles08
sprinkles08
ASE Certified Technician
High School or GED
24,338 satisfied customers
Lincoln: So my friends car Ive been working on is not driveable,
So my friends car I've been working on is not driveable, it idled rough and died out and would also die out when gas is pressed and die. I checked fuel rail pressure and it's good, cleaned the Idle Ai… read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
25,182 satisfied customers
f-350 super duty: have 2004 f350 with 6.0 was surging was told
have 2004 f350 with 6.0 was surging was told to update spring in top filter regulator did that then that didn't help so changed the push pump on the frame now it is worse it has no throttle and it chu… read more
James
James
Bachelors degree automotive technology with minor in diesel
3,578 satisfied customers
98 ford ranger: low power..driving home..intermittent firing
have 98 ford ranger ran like a top then had low power when starting out or on low end, changed fuel filter made some improvement. Was driving home engine died, towed home. engine turns over but doesnt… read more
Steve
Steve
Ford tech Specializing in electronics
Associate Degree
1 satisfied customers
2003 Ford F350: dies..High pressure oil pump changed
2003 Ford F350 diesel will start, runs for about 6 min then dies. High pressure oil pump changed. Where should I start.… read more
Saemery1
Saemery1
Ford Senior Master Dealership Technician
Associate Degree
1 satisfied customers
1994 ford explorer 4x4: cylinder..fires..the fuel pump,fuel filter
I have a 1994 Ford Exsplorer 4x4 6 cylinder fires but wont run It acts like it runs out of gas I replaced the fuel pump,fuel filter,ignition module and it still does the same thing and it does have sp… read more
Steve
Steve
Ford tech Specializing in electronics
Associate Degree
1 satisfied customers
1998 F-150: V6..running fine..idleing real rough and wanting to die
I've got a 1998 F-150 4.2L V6 Truck was running fine and all of at once went to idleing real rough and wanting to die. You have to press the fuel pedal down real slow or the engine will die. Scan code… read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
25,182 satisfied customers
92 ranger: injectors,wires, fuel filter air filter..exhaust..shifting
I have 92 ranger 2.3L engine missing, I put new spar plugs,injectors,wires, fuel filter air filter, exhaust presure test ok. fuel presure 32 psi when I push gas up to 40 psi missing but after keep the… read more
Kenny Z
Kenny Z
Ford Senior Master Technician
High School or GED
16 satisfied customers
1994 ford ranger: runs great..restart..same thing..coil and modual
i have a 1994 ford ranger 3.0 starts runs great all day but if u start it when cold let it run for a min or so turn it off and try to restart it turns over but wont start let it sit till the next morn… read more
b-kitchener
b-kitchener
Ford dealer senior master technician
Vocational, Technical or Trade Scho
206 satisfied customers
1994 Ford ranger: fuel pump..assembly..1995 Ford..a 1995 Mazda b2300
Will a 1994 Ford ranger fuel pump fit a 1994 Mazda B2300 truck? The dead Mazda here has a bad pump which I removed; the Mazda dealer wants 359 bucks for the whole assembly; pump fuel/sensor. AIRTEX sh… read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
25,182 satisfied customers
I have a 1989 ford ranger truck I put a new fuel pump in the
I have a 1989 ford ranger truck I put a new fuel pump in the tank and now it starts and runs but after getting the speed up to 30 mph the truck starts to die like its not getting enough gas. I turn th… read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
25,182 satisfied customers
1999 ranger: dies..back fire..acts ike its misfiring
I have a 1999 ranger w/3.0, engine barely starts, tries to run for a second then dies with a little back fire. acts ike it's misfiring. already replaced the plugs and a bad wire. could it be the crank… read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
25,182 satisfied customers
1987 ford ranger: distributor, cap and spark plugs..trick
Hello. I have a 1987 ford ranger that was having some issues with staying running. I changed out the distributor, cap and spark plugs and it seemed to do the trick. However, the next morning, I starte… read more
Tim
Tim
Associate Degree
3,172 satisfied customers
OTHER THAN A GAS LINE FILTER, AND THE AIR FILTER..FUEL INJECTORS
OTHER THAN A GAS LINE FILTER, AND THE AIR FILTER, ARE THERE ANY OTHER FILTERS ON THE ENGINE OR IN THE GAS LINE GOING TO THE FUEL INJECTORS?… read more
mustangmike
mustangmike
AUTOMOTIVE TECHNICIAN
Vocational, Technical or Trade Scho
492 satisfied customers
1992 ford ranger: Cyl..rough and blowing black smoke..spark plugs
1992 ford ranger 2.3L-4 Cyl. Started running bad when low on fuel, idling rough and blowing black smoke. replaced fuel filter and spark plugs that were very fouled w/ black smut, still have same probl… read more
Dennis
Dennis
Senior Master A Technician/Shop Foreman
Vocational, Technical or Trade Scho
758 satisfied customers
1989 Ford F150: runs rough..temp sensor..throttle..rough plug wires
1989 Ford F150 351 auto, have hard starting, smokes, runs rough, seems to be over fueling, installed new map sensor, cold temp sensor, ignition mod, idle air control motor and solnoid, can eventulally… read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
25,182 satisfied customers
Dies..the fuel pump/conditioner on the frame rail didnt help
i have a 05 e-450 that dies after about ten minutes of ideling, the top fuel filter housing runs dry and it has a code po263, i replaced the fuel pump/conditioner on the frame rail didnt help… read more
POWERSTROKE
POWERSTROKE
DIESEL MASTER TECH
Associate Degree
1,040 satisfied customers
1994 Ford ranger: 6cyl..check engine light..times it acts like it..die
1994 Ford ranger 6cyl check engine light is on and it is idling rough. there is times it acts like it wants to die but doesnt. It smells like it is running rich on the fuel. What is going on?… read more
autodoc_2000
autodoc_2000
Automotive Technician/Asst Service Manag
Vocational, Technical or Trade Scho
5 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