SOURCE: 99 Ranger- Consistant coil pack issues....
What is the engine size? Have you checked the ignition module? Check the output of the crank sensor at the ignition module to verify wiring integrity. The signal is shielded so insure there is no break in the insulation.
SOURCE: 2002 ford escort zx2 negative ground harness
I am about to have the same problem with my 2002 ZX2. My shop called the Ford dealer and they can replace it for $450.00...
seems like an awful lot for a battery cable.
JS
SOURCE: 99 Ford Ranger XLT 3.0L V6 Intermittent ignition
i would have to suspect a crank sensor and-or connection there.
i see you checked it with an "o-scope" but i would be willing to
bet you dont have injector pulse either. without the crank signal, there is no rpm input, the pcm doesnt even know its cranking!
i have replaced many crank sensors with this intermitent concern....
SOURCE: i need to install a starter solenoid on a 1990
Maybe you bought the wrong part, take the old part to auto parts store where you bought it and compare it. on this older model vehicles it is unusual for parts no to be the same.
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