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.

Ask Chuck Your Own Question

Chuck
Chuck, ASE Certified Technician
Category: Ford
Satisfied Customers: 2100
Experience:  33 Years Experience,Ford Senior Master,ASE Master,L1 Advanced Engine Performance
Type Your Ford Question Here...
Chuck is online now
A new question is answered every 9 seconds

1997 ford f150 with a 4.6 lit. motor for which the starter wont run.

Resolved Question:

I have a 1997 ford f150 with a 4.6 lit. motor for which the starter won't run. It is a 5speed and will roll start with no problems. The selenoid clicks when the ignition is turned to start, but the starter does not turn. It seems like a bad battery or corroded cables, but I have cleaned the cables and the battery takes a charge, runs lights brightly, etc. so I don't think it is the battery either. I replaced the starter and selenoid with new parts (not rebuilt) and it does the exact same thing. Any ideas on what to try? Thanks
Submitted: 4 years ago.
Category: Ford
Expert:  Chuck replied 4 years ago.
Do you have a voltmeter?
Customer: replied 4 years ago.
Yes
Expert:  Chuck replied 4 years ago.

Here are the wiring schematics for your starter system. 1st pic is without anti-theft and the 2nd pic is with.

 

graphic

 

graphic

 

Now since you here the solenoid click I suspect that you are getting 12V on the T/R wire at the solenoid but go ahead and double check it anyway with your voltmeter and make sure you have 12V there with key in start position. If it is ok then take you a screw driver and short the battery positive side of the solenoid to the terminal where the T/R wire hooks up and see if starter engages and turns. If it doesn't then you have a cable or ground problem. If starter does not engage and turn when you do this hook the T/R wire back up and take your voltmeter and hook one end to the battery positive cable at the battery and the other end to starter terminal where positive cable hooks to it,you should read 12V. Then have someone turn ignition to start position and hold it there. You voltmeter should drop to less than 1V. This is checking the entire circuit from battery to starter, called voltage drop. If it does not drop below 1V then you have something wrong,either the cable from battery to solenoid,the solenoid,or the cable from solenoid to starter is bad.You can test each cable this way and the solenoid also. Just take your lead that is hooked at the starter and work you way back until you see the drop to less than 1V.

If this checks good then take the bolts out of the starter one at a time and look at the threads good. If they are black you may be loosing your ground from the starter to the block. Take a wire brush and clean the threads really good and reinstall and see if this cures your concern.

If this does not then take like a set of jumper cables and hook one end to battery negative cable and the other end to a good ground on the chassis and see if it cranks then,if so then your negative cable is bad.



Edited by Chuck on 9/28/2009 at 2:40 PM EST
Chuck, ASE Certified Technician
Category: Ford
Satisfied Customers: 2100
Experience: 33 Years Experience,Ford Senior Master,ASE Master,L1 Advanced Engine Performance
Chuck and 12 other Ford Specialists are ready to help you

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 D USA
< Last | 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
 
 
 

Meet The Experts:

 
 
 
  • Ron

    ASE Certified Technician

    Satisfied Customers:

    20942
    23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs
< Last | Next >
  • http://ww2.justanswer.com/uploads/FO/fordguy4u/2011-12-17_222940_HPIM1257.64x64.JPG Ron's Avatar

    Ron

    ASE Certified Technician

    Satisfied Customers:

    20942
    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)

    Ford Technician

    Satisfied Customers:

    22382
    16 years experience with Ford.
  • http://ww2.justanswer.com/uploads/JM/jmcdo28/2012-2-23_01655_resized.64x64.jpg John Mc's Avatar

    John Mc

    Ford Technician

    Satisfied Customers:

    5493
    19 years Ford Lincoln Mercury experience
  • http://ww2.justanswer.com/uploads/wmarti7/2009-4-18_04332_Avatar.jpg Chuck's Avatar

    Chuck

    ASE Certified Technician

    Satisfied Customers:

    1684
    33 Years Experience,Ford Senior Master,ASE Master,L1 Advanced Engine Performance
  • http://ww2.justanswer.com/uploads/CR/crzydrvr00/2013-11-3_12123_246347.64x64.jpg Richard's Avatar

    Richard

    ASE Certified Technician

    Satisfied Customers:

    1518
    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:

    789
    25 years experience on all makes and models, Licensed NYS Inspector.
  • http://ww2.justanswer.com/uploads/lostrider/2009-9-26_23144_php4VNWAA_c1PM1.jpg lostrider's Avatar

    lostrider

    Ford Technician

    Satisfied Customers:

    2940
    ASE Master Technician, Ford Senior Master Technician,Diesel certified, ASE Master, 22 yrs FORD exp.