Will not start

Tiny
ALEXPOTTERTON
  • MEMBER
  • 1998 FORD TAURUS
  • 2WD
  • AUTOMATIC
  • 174,253 MILES
My engine will not start. None of the lights will turn on, not even when I turn the key in the ignition. I just put a new battery in about a week ago. I also put a full 5.5 quarts of oil in, as it was out. Before the replacement of the battery, it had the same symptoms. Could it be the alternator?
Monday, November 27th, 2017 AT 3:11 PM

4 Replies

Tiny
CARADIODOC
  • MECHANIC
  • 33,754 POSTS
Hold on. You did not list the engine size, but none of them hold 5.5 quarts of oil. Were you checking the level with the engine running or stopped? If it really was out of oil, serious damage will be done within a few seconds.

The generator's job is to run the car's electrical system and recharge the battery after it cranks the engine. It is not in the picture until after the engine is running. If the generator did fail, the battery has to keep the electrical system going, and at best, it will only do that for about an hour if you are not using the head lights or heater fan. Eventually the engine will stall, but you should still see some dim dash lights. Various warning lights will start turning on before the engine stalls.

If everything was working fine the last time you drove the car, and now everything is not working, the best suspect is a loose or dirty battery cable connection. Specifically, follow the smaller battery positive wire to where it is bolted to the under-hood fuse box. Be sure that nut is tight. Follow the smaller negative battery wire to the body and be sure that connection is tight and not rusty.

Ford had a number of different starter circuits for different engines, but they all used a version of solenoid/relay on the inner fender near the battery. For some versions, the larger positive starter cable bolts to one terminal of that solenoid. On other versions, only the smaller positive wire bolts there. Those solenoids use soft copper nuts and studs, and it is real common for those nuts to work loose and cause intermittent problems. Check those nuts, but be careful that the wrench never contacts the nut and a metal part of the car at the same time. Doing that will cause a huge shower of sparks, and possibly even a melted wrench.
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Monday, November 27th, 2017 AT 4:42 PM
Tiny
ALEXPOTTERTON
  • MEMBER
  • 3 POSTS
I mentioned the 5.5 quarts as it is actually marked on the engine itself. And when I say none of the lights will turn on, not even the dome light when I open the door.
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Monday, November 27th, 2017 AT 5:47 PM
Tiny
CARADIODOC
  • MECHANIC
  • 33,754 POSTS
Ninety five percent chance it is the connections I described.
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Monday, November 27th, 2017 AT 6:10 PM
Tiny
ALEXPOTTERTON
  • MEMBER
  • 3 POSTS
Thank you. :)
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Monday, November 27th, 2017 AT 6:18 PM

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