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1988 Ford F350 NO Start

Tiny
CIRCLELB
  • MEMBER
  • 1988 FORD F-350
Electrical problem
1988 Ford F350 V8 Two Wheel Drive Automatic

460 Motor, Will Crank but will not start. Changed Distributor, Cap, rotor, Plugs and wires, Ignition Switch under Dash, Coil. Can you Help
Monday, February 2nd, 2009 AT 9:42 PM

4 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Does it have spark and fuel pressure?
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Monday, February 2nd, 2009 AT 10:06 PM
Tiny
CIRCLELB
  • MEMBER
  • 3 POSTS
NO spark to the distributor, Did have Fuel Pressure.
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Tuesday, February 3rd, 2009 AT 7:43 AM
Tiny
CIRCLELB
  • MEMBER
  • 3 POSTS
No spark to the distributor. Check coil w/ometer.
+ to -- was 0.00v Center post to + was 7.25v
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Tuesday, February 3rd, 2009 AT 8:05 AM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
You need to measure the coil's primary and secondary resistances See below specs. If okay check the distributor pick up coil and then the ignition control module

IGNITION COIL PRIMARY RESISTANCE
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Tech1Tip: NO VOLTAGE TO COIL OR ECC RELAY

With ignition switch in "OFF" position, disconnect ignition coil connector. Inspect connector for dirt, corrosion or damage. Measure resistance across ignition coil positive and negative terminals. See Fig. 4.
Resistance should measure.3-1.0 ohm. If so, ignition coil primary circuit is okay. Proceed to IGNITION COIL SECONDARY RESISTANCE test. If resistance is less than.3 ohm or greater than one ohm, replace ignition coil.

IGNITION COIL SECONDARY RESISTANCE
With ignition switch in "OFF" position, disconnect ignition coil connector and secondary wire from coil tower. Measure resistance between negative coil terminal and coil tower. See Fig. 4.
Resistance should measure 6500-11,500 ohms. If so, ignition coil is okay. Proceed to WIRING HARNESS test. If resistance is less than 6500 ohms or greater than 11,500 ohms, replace ignition coil.
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Tuesday, February 3rd, 2009 AT 2:28 PM

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