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86 Ford ranger not firing

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New User

Nov 21, 2006, 4:39 PM

Post #1 of 2 (2343 views)
86 Ford ranger not firing Sign In

the battery checked 12.02 volts and the harness to the coil checked 11.75 volts. With the motor ginning it checked 9.5 at the coil. The demand wire from the module on the distributor to the coil shows continuity. Coil is new, wires and distributor cap, rotor button and module on back of distributor is new. When checked with a code reader the primary code was 21. The engine is a 2.9 L EFI 1986 Ranger. There is no fire at a test plug. Any suggestions?

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way2old profile image

Nov 21, 2006, 4:56 PM

Post #2 of 2 (2338 views)
Re: 86 Ford ranger not firing Sign In

The code 21 is for the coolant temperature sensor. It may cause a no start, but it will not cause a no spark unless it is shorted too.

Being way2old is why I need help from younger minds

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