Spins will not start scan tool will not connect to computer?

Tiny
DOLPHINSPERFECT-17-0
  • MEMBER
  • 1999 FORD E-SERIES VAN
  • V8
  • 2WD
  • AUTOMATIC
  • 114,000 MILES
Eng. Spins will not start scan tool will not connect to computer. Cannot find any blown fuses?
Sunday, July 11th, 2010 AT 7:13 AM

1 Reply

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

If the engine cranks over but does not start it could be due to either not getting fuel or spark.
When you turn the key to the on position, does the fuel pump kick on?
An inoperative fuel pump can be due to a bad relay, faulty wiring or a bad pump.
Checking the fuel pump relay is a good place to start.
That relay is located under the hood fuse box (see diagram).
Check for corrosion and burnt pin(s).
Here is a guide on how to test relays:

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

If the relay is good, then check to see if there is power to the fuel pump. If you have power, then the issue is a bad fuel pump and will need replacement.

Here is a helpful guide that goes over the typical crank no start issues:

https://www.2carpros.com/articles/car-cranks-but-wont-start

I have attached diagrams for your reference.

Please let me know if you have any questions.
Thank you.
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Sunday, December 19th, 2021 AT 9:31 PM

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