2003 Ford F-150 Adding a Tachometer

Tiny
RANLPORT
  • MEMBER
  • 2003 FORD F-150
  • V8
  • 4WD
  • MANUAL
  • 74,000 MILES
Purchased truck with standard transmission but dash has no tachometer. Truck is in very good condition and quiet so much that it is hard to hear the engine as I start out and have almost stalled it. My question is which pin on the PCM should I hook up the tach wire to? I did hook to pin #48 but it doesn't work. I of course hooked up the hot and ground wires.
Tuesday, September 7th, 2010 AT 1:59 PM

1 Reply

Tiny
MATTHEW.ADELMAN
  • MEMBER
  • 6 POSTS
I'm not very familiar with the newer F-150s, are you sure it's supposed to be connected to the PCM, most tachometers are connected to the ignition coil wiring harness. Double check the installation instructions.
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Saturday, September 11th, 2010 AT 3:17 PM

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