Ford 300 -starts, but quits when you let go of the starter
I have a ford with a 300 6cyl that starts but quites when you let go of the starter switch. It has a new started relay and I piggy backed a new ignition module - no help. With the ignition switch on Its got 12v mesured at the primary of the coil and you can see it ark when you take the wire off. a speharIf you jump. If you jumper 12v directly from the battery lug of the starter relay to the primary of the coil (or to the small terminal of the starter relay closest to the battery lug) it starts and runs fine, but of course you cant turn it off wuth the ignition switch. I also jumpered 12v directly to the ignition side of the ignition switch and it was no help also. Any ideas?
Re: Ford 300 -starts, but quits when you let go of the...
With the ignition turned on, measure the voltage on the coil + terminal, it should be 8 to 12 volts, if there is nothing or very low ( ie 2 - 3 volts) then I would suspect the ballast resistor, )which may be part of the wiring from the key switch to the ignitionpack or coil.)
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
It sounds to me like you have something binding up or building resistance due to heat. I have had a similar thing happen to me with different cars. It turned out to be a battery cable that was fine when cold, but when it warmed up, it would sag and touch against an exhaust pipe just enough so that when I went to start the vehicle, it would arc to the exhaust and lose battery power that was normally used for starting it. Another time it turned out to be the negative cable not making good enough contact. The Ford 300, 6cyl. engine is a very good solid dependable unit, but ford has always had quite long battery cables and issues with the way the were grounded. I would check my cables and maybe replace them for good measure. Also be certain that your negative cable is very solidly grounded to the block of the engine.
It could be mainly one of three things. Either the computer is going bad, computer is getting high temp from coolant sensor and shutting down engine, a sensor is going bad and when it heats up it send crazy signal or high voltage to computer which makes the computer go into shut down mode. I admit I don't know much about Econolines but those are symptoms of these events.
It all depends. Normally when you buy a replacement starter there is a piece of straight wire that comes with it that helps you to "gap" the tranny's fly wheel teeth to the starter's teeth...so they mesh properly.
Are you asking because you have flywheel damage on the transmission side or are you having starter problems?