5.9 cranks-no start - Dakota Durango Forum
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post #1 of 6 Old 03-17-2017, 08:22 PM Thread Starter
pinehillian
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5.9 cranks-no start

2001 durango 5.9--getting no bus signal---i checked all sencors with muti meter--i only have .40-.45volts on the 5v system----jiggled all wires, harness replugged all plugs---gas gauge pegged below E---i had engine light for evap leak,i put new purge solinoid in and light went out, that afternoon it stalled 2 times and parked it. next morning went out it started up, when i reved it 2-3 times it died. now have no bus and will not start thanx any help
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post #2 of 6 Old 03-18-2017, 06:51 AM
Burned
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Watch the video first

https://youtu.be/ZLQsvjViv8k

http://www.dakota-durango.com/forum/...d.php?t=161570

2002 Dakota Sport QC 4x4, 4.7L, Grand Cherokee TCM

Last edited by Burned; 03-18-2017 at 06:57 AM.
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post #3 of 6 Old 03-18-2017, 06:34 PM Thread Starter
pinehillian
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i watched video and did the test thing. i checked at thott pos sencor and had less than 1 volt until i pulled the one off tranny thats output speed sencor and it jumped to 5plus volts and gas gauge went up.put new one in and back to same thing. bought one from advance and its made in taiwan. getting fustrated. now i got battery undone and gone out now to try again. every other sencor i unplugged made no change till i got to the tranny one.
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post #4 of 6 Old 03-18-2017, 06:49 PM Thread Starter
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i just went out hooked batt still no, unplugged trany sencor now gauge dont move and ,3 v at my tester.
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post #5 of 6 Old 03-18-2017, 06:58 PM
Burned
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I suggest you get a hold of a wiring diagram to see what is on that circuit. I would wiggle the wiring to see if power cuts out. When using a meter you want to use the frame as ground and also the wiring as ground to get an accurate idea.

I found this, not sure if it pertains to you:

The 5v power supply from the Powertrain Control Module (PCM) is shorted due to a shorted Governor Pressure Sensor. Test & Fix: If the 5v power supply circuit is shorted to ground, the CCD bus is unable to transmit messages and the Powertrain Control Module (PCM) appears to be "dead". The PCM is not damaged when the 5v power supply gets shorted to ground, but does need to be reset by turning the key off for 10 second after the short is removed. Using a DVOM or labscope, measure the voltage on the 5v reference wire at the Throttle Position Sensor (TPS) or Manifold Absolute Pressure (MAP) Sensor. If 5v is not present, unplug the large round connector on the driver's side of the transmission. Turn the key off for 10 seconds. Turn the key on and measure the voltage on the 5v power supply circuit. If the voltage is now 5v, remove the transmission pan and check for shorted wiring inside the transmission. If the wiring is OK, replace the Governor Pressure Sensor.

2002 Dakota Sport QC 4x4, 4.7L, Grand Cherokee TCM

Last edited by Burned; 03-18-2017 at 07:16 PM.
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post #6 of 6 Old 03-19-2017, 01:49 PM Thread Starter
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i did that test all but trans pan removal, is there any where to unplug it without removing pan? now im going to try to check the grounds just not sure where to start. any sugg? testing earlier i remove speed sencor wire from rear of trany and boom had 5v s went bougt new one hooked up, even unhooked again still 1/2v . will it hurt anything to leave key on for while during these test? is 02 sencors on this 5v sys? also it says unplug dash, how the ... you do that?
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