engine no start

145,000 MILES • 4.6L • V8 • RWD • AUTOMATIC
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MIDAS617
  • MEMBER
  • 1 POST
When I go and turn the key, no start. I thought the battery was bad so I took the battery out of my wife's car to no avail. I put the grand marquis battery in wife's car and it turned on with no problem.

I then pulled the starter relay and with the the key turned to the on position I jumped the relay cavity number 87 and 30 and the engine cranked and started right up.

I replaced the NSS sensor and when I go start up the car, nothing.

I have checked all ground and they seem fine at least the ones that I was able to eyeball. so I went and jumped the number 30 and number 87 at the relay and the car started up just fine again.

Thanks in advance!
Aug 1, 2017 at 5:49 AM
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SQM
  • ✓Experienced Mechanic
  • 6,383 POSTS
Hello,

Typically an engine won't start for lack of fuel or spark.
Here is a video that walks you through the basics of no start:

https://youtu.be/dCjmRL3p4Cs

Also you might find these articles helpful:

https://www.2carpros.com/articles/car-cranks-but-wont-start
https://www.2carpros.com/articles/symptoms-of-a-bad-crankshaft-sensor

Please let me know if you have any questions.

Thank you.
Jul 17, 2021 at 4:33 PM
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