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1998 Ford F-150 cranks but no start, also fuel pump runs…

1998 Ford F-150 cranks...

1998 Ford F-150 cranks but no start, also fuel pump runs nonstop while key is on , doesn't stop after a few seconds

Mechanic's Assistant: Have you checked the engine's fuel supply? And the spark plugs -- are they all working?

Will check for spark and fuel here shortly, but my scanner doesn't see the car either, in past it did

Mechanic's Assistant: Are you fixing your F150 yourself? What have you tried so far?

Checked every fuse

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

I think I should check spark and fuel first

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Answered in 5 minutes by:
8/17/2017
Chris (aka- Moose)
Chris (aka- Moose), Technician
Category: Ford
Satisfied Customers: 52,668
Experience: 16 years experience
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Welcome, I'm Chris (aka Moose).

  • Although I work here everyday, please understand it is not all day and rarely morning time.
  • To get the most from me and the best experience, please give me the best details you can.
  • The website will offer you a phone call option for more $$. Some I do fulfill and some I do not.
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What liter engine?

Chris (aka- Moose)
Chris (aka- Moose), Technician
Category: Ford
Satisfied Customers: 52,668
Experience: 16 years experience
Verified
Chris (aka- Moose) and 87 other Ford Specialists are ready to help you
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Customer reply replied 11 months ago
5.4
Customer reply replied 11 months ago
Fuel in rail

Key on, is the check engine light on?

While cranking is the check engine light off?

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Customer reply replied 11 months ago
Light on all the time
SuperDave
SuperDave, auto technician
Category: Ford
Satisfied Customers: 1,816
Verified
Phone call session started

Since the check engine light is on while cranking, that is a good sign that the PCM is not getting a crank sensor signal. After doing the steps below to regain communication can you see if you get a CKP reading or not.

https://www.dropbox.com/s/hj0wuofxcav2l2h/PCMcomm11.pdf?dl=0

Now that I have posted a partial or complete answer, you will see you can rate me. The deposit you have already paid is not transferred to me until you rate me. I would like to receive nothing less than 5 star excellent ratings. So if we are not there yet, please reply and let me help more. If you're not pleased, let me know because rating bad does not result in a refund, there are better options. Rating now will not close this post nor prevent replying. Thanks Chris

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Customer reply replied 11 months ago
Still waiting for phone call
Customer reply replied 11 months ago
Should I be waiting?

Someone else attempted the call, it is not available to me

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