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1993 Ford F-150 won't start when air temp is below 40

Tiny
SCOTT F.
  • MEMBER
  • 1993 FORD F-150
  • 6 CYL
  • 2WD
  • MANUAL
  • 139,000 MILES
I have replaced coolant temp sensor, IAC, TPS, ignition module, plugs, wires cap and rotors.I have tested air intake sensor it appears fine.
Thursday, October 15th, 2009 AT 3:34 PM

2 Replies

Tiny
BIG_JAY
  • MECHANIC
  • 121 POSTS
This sounds like the crankshaft angle sensor or the fuel pump has gone out, when you turn the key to the on position without cranking the engine over can you hear the fuel pump run in the tank for 5 seconds? These guides should help us fix it.

https://youtu.be/dCjmRL3p4Cs

and

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

Also, lets run the codes to see what come up.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Please run down these guides and report back.
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Monday, May 31st, 2021 AT 12:46 PM
Tiny
SCOTT F.
  • MEMBER
  • 2 POSTS
Found it. It was a weak coil. Thanks
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Monday, May 31st, 2021 AT 12:46 PM

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