Won't start

Tiny
DBODKER
  • MEMBER
  • 1999 FORD F-150
  • V8
  • 2WD
  • AUTOMATIC
  • 165,000 MILES
My 1999 F150 doesn't always start. The engine spins but seems not to be getting fuel or not getting electrical spark. Doesn't happen always and will start after a period of time. It is very irregular and not when engine is hot or cold just every so often. I am thinking its an electrical module or some sort of fuse that regulates fuel and or spark but I am not sure.
Monday, June 7th, 2010 AT 7:39 PM

3 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Next time it refuses to start do below to determine if its fuel or spark issue

Get a helper disconnect a sparkplug wire or 2 and ground it to the engine atleast 3/16 away from ground-have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs, coil's resistances, distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it
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Monday, June 7th, 2010 AT 7:47 PM
Tiny
SHARIEANN
  • MEMBER
  • 1 POST
Had it to dealership and they can't tell what it is if it isn't doing it at the time. Problem is, when it won't start I'm usually is a parking lot. Had a complete tune up, spark plugs, fuel filter, diagnostic, etc. And still did it. A friend said it was probably the electrical and there was a box under the hood on the drivers side. I now carry a cooler with ice packs and when I go shopping I put the ice pack on this box. This has really helped. Other than people wondering what I'm doing. Real good advertising for Ford.
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Wednesday, October 11th, 2017 AT 12:05 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,169 POSTS
You should need to do that, can you send me a picture of what you are doing so I can see?

What is the problem does the engine not start or not crank over?

https://www.2carpros.com/articles/car-cranks-but-wont-start

Please let us know

Cheers, Ken
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Wednesday, October 11th, 2017 AT 11:17 AM

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