A new question is answered every 9 seconds

E350: van..cranks but wont start unless ether is sprayed into it..psi

Customer Question

I have a Ford E350 cube van with a 5.8L that cranks but wont start unless ether is sprayed into it. I have spark. Replaced fuel filter and fuel pump and have 50 Psi up to the motor. IAC motor has been replaced also. Timing is right on. I am running out of ideas. The water pump and timing cover were replaced just prior to this problem and it ran before. Could I have disturbed something that I am overlooking. Does the air breathers need to be on to run?
Submitted: 6 years ago.
Category: Ford
Expert:  Tim replied 6 years ago.
Will the van stay running once you spray ether in and get it started?
Customer: replied 6 years ago.
yes, I didn't have any noid lights with me but I will see today if the injectors are firing. Could it be a crank sensor problem that is inhibiting the injectors from firing? Where is the crank sensor located on that motor?
Expert:  Tim replied 6 years ago.

If it stays running after you get started than I would install the fuel gauge and verify the check valve in the pump assembly is not bleeding off the pressure when you turn the key off.If it is than you need to replace the whole assembly.Or look for an injector that is sticking open and bleeding off the pressure.



Customer: replied 6 years ago.
OK, heres the deal. I worked on it today for about 3 hours with no luck. I have 35 p.s.i for fuel pressure at the fuel rail while it cranks and it holds without cranking the engine. I have replaced the fuel pump, filter and pressure regulator. I checked the injectors with a test light and they are getting the electrical signal and should be firing. I thought maybe I had a weak spark to I went ahead and changed the coil. I can make the engine run as long as I keep spraying ether in the throttle body, as soon a I quit spraying ether it dies. I then hooked up a vacuum gauge to the back of the manifold where the PCV valve is tapped in and discovered there is no vacuum when I am cranking the engine. The timing seems to be right. I hooked up a timing light and as soon as the #1 piston came up to TDC on the compression stroke the light fired. WTF!! I am frustrated and out of ideas. All the vacuum lines appear to be hooked up.
Expert:  Tim replied 6 years ago.
you will need to get what is called a noid light.You up plug an injector and plug it in the harness to see if the computer is firing the injector properly. The parts store may have them.If the computer is working properly than the light will flash.
Customer: replied 6 years ago.

I did that with a test light, the injectors are firing. I have no engine vacuum when I am cranking the engine. Plugged exhaust?? Is that common with these?

Expert:  Tim replied 6 years ago.
No its not common but that is easily checked by lowering the exhaust pipes at the manifold to let the exhaust out.
Customer: replied 6 years ago.
no luck dropping the exhaust, I didn't think it would fix it but worth a try. Still no cranking vacuum, like I said the timing chain cover was removed by someone else to get broken bolts out of the block from the water pump. After the pump was replaced it ran for a short time then died. Is there a chain tensioner on the inside of the cover? Seems like the chain may have jumped timing. Any other ideas?
Expert:  Tim replied 6 years ago.
there is no tensioner. To check if it has jumped time.Bring the engine up to top dead center by removing number one plug and when the compression is blown out the plug hole it should be on top dead center on the timing mark on th e cover.Than remove distributor cap and see if the rotor is pointing to number one position on the cap.If it is than the timing chain is ok.
Customer: replied 6 years ago.
Anything else to look for as to why there is no vacuum when the motor in cranking?
Expert:  Tim replied 6 years ago.

Take the cap off the distributor and crank and see if rotor is turning.

Customer: replied 6 years ago.
it turns
Expert:  Tim replied 6 years ago.
Have you checked to see if the timing is correct?
Customer: replied 6 years ago.
it appears to be about 8 degrees BTDC.
Expert:  Tim replied 6 years ago.
DO you have vac when you keep it running with ether?
Customer: replied 6 years ago.
i didn't check that
Expert:  Tim replied 6 years ago.
check that and let me know
Ask Tim Your Own Question
Tim, Ford Technician
Category: Ford
Satisfied Customers: 3580
Experience:  Ford Senior Master tech, ASE certified
Type Your Ford Question Here...
Tim is online now
How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

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 D USA
< Previous | Next >
  • 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 D USA
  • 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. Molly USA
  • 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. BR New 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 P Elm 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. Phil Marysville, CA

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.

Meet The Experts:

  • Ron


    ASE Certified Technician

    Satisfied Customers:

    23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs
< Last | Next >
  • http://ww2.justanswer.com/uploads/FO/fordguyu/2015-7-7_172556_onnieew.64x64.jpg Ron's Avatar


    ASE Certified Technician

    Satisfied Customers:

    23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs
  • http://ww2.justanswer.com/uploads/MU/muddyford/2012-6-13_1204_1.64x64.png Chris (aka- Moose)'s Avatar

    Chris (aka- Moose)


    Satisfied Customers:

    16 years experience
  • http://ww2.justanswer.com/uploads/JM/jmcdo28/2012-2-23_01655_resized.64x64.jpg John Mc's Avatar

    John Mc

    Ford Technician

    Satisfied Customers:

    19 years Ford Lincoln Mercury experience
  • http://ww2.justanswer.com/uploads/wmarti7/2009-4-18_04332_Avatar.jpg Chuck's Avatar


    ASE Certified Technician

    Satisfied Customers:

    33 Years Experience,Ford Senior Master,ASE Master,L1 Advanced Engine Performance
  • http://ww2.justanswer.com/uploads/BL/Bluegorilla/2012-6-21_16298_cam.64x64.JPG Cam's Avatar


    Journeyman Automotive Technician

    Satisfied Customers:

    GM Grand Master Technician 2007. 14 years Automotive experience.
  • http://ww2.justanswer.com/uploads/CR/crzydrvr00/2013-11-3_12123_246347.64x64.jpg Richard's Avatar


    ASE Certified Technician

    Satisfied Customers:

    12 years at a Ford Lincoln/Mercury and Jaguar dealer as a technician and shop foreman.
  • http://ww2.justanswer.com/uploads/BA/baddad1/2014-4-1_23659_avatar.64x64.jpg Mike V.'s Avatar

    Mike V.

    Auto Service Technician

    Satisfied Customers:

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