Pre-1997 Models

1989 F150 4.9L Code 14

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Old 07-26-2007, 09:55 AM
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1989 F150 4.9L Code 14

Good Morning,
My truck has been just dying lately. It will be running great then it will sputter a few times and just die. Sometimes it will start back up right away, other times I will have to wait an hour or so. I cleared the memory and kept running the truck until it finally died. The one code that came up is a CM code # 14. The code definition is "Two or more successive erratic Profile Ignition Pickup (PIP) pulses occurred, resulting in a possible engine miss or stall". I am not quite sure what that code definition means. Can anyone help ?
Thanks
 
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Old 07-26-2007, 02:04 PM
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Usually that means the PIP sensor is on its way out. It's inside the distibutor and a pain to get back out. If it were me, I would just get a new (or reman) distributor and replace the whole thing.
 
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Old 08-05-2007, 01:57 AM
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Before replacing anything, get a Haynes manual & a cheap digital multimeter, and follow the ignition diagnostic procedure. It's very thorough & will positively identify any fault in that system.

It's more likely a bad TFI since they're known to burn out.
 


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