SPONSORED LINKS

No ground Pulse, will not start

Tiny
LWALTERS
  • MEMBER
  • 2002 FORD EXPLORER
  • 4.0L
  • V6
  • 4WD
  • AUTOMATIC
  • 150,000 MILES
Crank, no start, new ECM, new coil, new crank position sensor, new cam position sensor. No ground pulse, coil unhooked twelve volts but no ground pulse when cranking.
Wednesday, May 30th, 2018 AT 6:13 PM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good morning.

Did you have the PCM flashed to your vehicle?

When you crank the engine, does the tachometer on the dash read a small RPM? That will tell us if the crank sensor is sending a signal to the PCM.

Can you hear the fuel pump run with the key on?

The PCM controls the ground for the coils as well as the injectors. That is why I asked about the programming or flashing being performed.

Roy

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

https://www.2carpros.com/articles/how-to-test-an-ignition-system
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Tuesday, December 29th, 2020 AT 12:05 PM

Please login or register to post a reply.

Related Engine Not Running Content

How to fix an engine that wont start
VIDEO
How to fix an engine that wont start
Instructional repair video
Engine Not Starting
GUIDE
Engine Not Starting
Over the past 20 years at 2CarPros we have identified the top problems that are easily fixed. This guide can save you a trip to the repair garage or calling a tow truck and...
VIEW MORE

Sponsored links