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Start up problem fuel pumps run, spark plugs are firing?

Tiny
SCOTTE5620
  • MEMBER
  • 1990 FORD F-150
  • 6 CYL
  • 2WD
  • MANUAL
  • 108,000 MILES
Fuel injected motor, fuel pumps run, spark plugs are firing. The motor will not start. What do I need to do?
Friday, December 14th, 2007 AT 12:22 PM

2 Replies

Tiny
BLACKOP555
  • MECHANIC
  • 10,371 POSTS
Check for fuel pressure at the fuel rail and injector pulse at the injectors.
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Friday, December 14th, 2007 AT 4:14 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,536 POSTS
Will it run so starting fluid? if not you may have a timing chain that has broken. Or if you are checking for spark at the coil you may have a bad coil to the distributor wire or the ignition rotor is bad. Please go over this video, it should help

https://youtu.be/lXLJbuAZ4CE?si=EFh1EVk7hGpemh3p

Please go over this guide and get back to us.
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Thursday, October 3rd, 2024 AT 6:11 PM

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