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rpmdiag, Tech and Instructor
Category: Ford
Satisfied Customers: 7728
Experience:  Since 1975
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Triton 5.4 engine turns over but will not statrt, Check

Customer Question

Triton 5.4 engine turns over but will not statrt
JA: Does the engine spark at all? Is there a trouble code or is your "check engine light" on?
Customer: Check engine light come on when I insert key, but goes off when I crank it
JA: What is the model/year of your Ford?
Customer: 98 expedition
JA: What year is your Expedition?
Customer: 1998
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: Just cranking. Happened a few weeks ago (sons car), and when I went to his location and turned off radio & AC it started. happened again this AM. He has used the last three weeks w/o problem.
JA: Anything else you think the mechanic should know?
Customer: Not yet, was going to read up on line and then troubleshoot some more
Submitted: 1 year ago.
Category: Ford
Expert:  rpmdiag replied 1 year ago.

Hi, I’m Ron and I’ll be helping you today.
Before we get started though, Please understand that I don't know
your skill level or tools you have to assist us. Also understand that
I can't see, smell, hear, or touch the vehicle either, so patience is
appreciated. JA is a great Q/A site, but it does NOT replace a
repair shop.
My goal is to make you happy and get a great rating in return for
my time. Sometimes I have to give you bad news that I know you
didn’t want to hear, so please don’t shoot the messenger.

I attached a doc for your review so it will give you some ideas where to start looking and ALL the possibilities for a NO START.

Thanks, Ron