1995 Mercury Marquis engine

1995 MERCURY MARQUIS
4.6L • V8 • 2WD • AUTOMATIC
Avatar
KLEGGSKAA1
  • MEMBER
  • 22 POSTS
I have a 1995 grand marquis with a 4.6. If the crankshaft sensor is bad would that cause the coils not to fire. what else would cause it not to fire the coils packs are new the fuses are good
Oct 2, 2014 at 6:27 PM
Advertisement
Avatar
JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
Yes, a bad crank sensor will shut down spark. If you can access a scanner, see if there is a crank signal to the PCM. No signal = bad sensor.
Oct 2, 2014 at 6:31 PM
Avatar
KLEGGSKAA1
  • MEMBER
  • 22 POSTS
We changed the crankshaft sensor and it still won't start what else can we try my husband wants to know can we put a wire from coil pins to battery to see if will start then thank you
Oct 6, 2014 at 12:04 PM
Avatar
JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
It doesn't work that way anymore. Do you have access to a real time scanner?
Oct 7, 2014 at 5:19 AM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.