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Crank no start

Tiny
GUAYUVIN40
  • MEMBER
  • 2006 NISSAN PATHFINDER
  • 4.0L
  • V6
  • 2WD
  • AUTOMATIC
  • 260,000 MILES
It has fuel pressure, compression, and timing is new and is correct, but it has intermittent spark, one every four or five revolutions new crankshaft sensor, cams sensors work fine hook up a computer on a auto mechanic shop, they said is a internal mechanic problem. I am running out options.
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Sunday, September 11th, 2016 AT 8:07 PM

13 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Try resetting security system if no owners manual look online.
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Monday, September 12th, 2016 AT 6:37 AM
Tiny
GUAYUVIN40
  • MEMBER
  • 7 POSTS
Thank you for your input. The security light goes away when key is turned to on position. And the intermittent pulse is on the coils and the injectors.
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Monday, September 12th, 2016 AT 11:29 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Check fuses and relay under hood and car pgm or any to do with ECM. Try security reset anyhow it may work
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-1
Tuesday, September 13th, 2016 AT 6:52 AM
Tiny
GUAYUVIN40
  • MEMBER
  • 7 POSTS
Thank you for the tip, but I tried all of that and more. I just find out the injectors also have intermittent signal. It may be the IEPM? Fuse box. I just want to make sure before I spend the money.
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Wednesday, September 14th, 2016 AT 4:22 AM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Try wiggling crank sensor connection it may be that if it starts you know it is.
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Wednesday, September 14th, 2016 AT 6:38 AM
Tiny
GUAYUVIN40
  • MEMBER
  • 7 POSTS
I did, no difference. Thank you
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Wednesday, September 14th, 2016 AT 9:01 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,895 POSTS
Is there any trouble codes? It could be the crankshaft sensor going out they had problems with that car.

Please let us know what you find so it will help others.

Best, Ken
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Wednesday, September 14th, 2016 AT 9:05 PM
Tiny
GUAYUVIN40
  • MEMBER
  • 7 POSTS
No trouble codes only when they get unplugged it will show the code of the sensor unplugged.
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Wednesday, September 14th, 2016 AT 9:38 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
If the shop says it's an internal problem then ask what they meant or it may be a ring on crank is loose or something that is a fluke.
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Thursday, September 15th, 2016 AT 5:39 AM
Tiny
GUAYUVIN40
  • MEMBER
  • 7 POSTS
The shop said mechanical the only 2 thing is timing and flywheel, I check it aND it has all teeths aND is straight. I took the front cover off I reinstall all 3 chains and triple checked and the same result.
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Thursday, September 15th, 2016 AT 3:25 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
May be the cam advance mechanism is bad causing it.
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Thursday, September 15th, 2016 AT 3:45 PM
Tiny
GUAYUVIN40
  • MEMBER
  • 7 POSTS
May be.
I will check in to it,
Thanks
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Thursday, September 15th, 2016 AT 9:17 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,895 POSTS
Hey,

Did you ever get the problem fixed?

Best, Ken
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Wednesday, December 21st, 2016 AT 1:43 PM

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