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Non-Fuel/Spark-related / NO CRANK diagnostics - A Writeup!

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Old Jun 14, 2011 | 12:41 PM
  #16  
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Originally Posted by dukie564
The previous owner may have seen empty spots and figured they needed to be filled. Take the relays in question and look if the holes have metal contacts in them. If not, then they aren't used for anything.

Found it, it's not mentioned at all in my owners manual but my Haynes does have them listed. They're for unnecessary things like windshield wipers and the like.
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Old Aug 19, 2011 | 06:20 AM
  #17  
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I am not having any issues with starting or anything else RIGHT NOW but I found this to be a great write up. Thanks for posting it. I would like to add something else about grounding. If you are having noise feeding back through your stereo, cleaning the ground strap at the rear of the valve cover and also adding a ground strap to your transmission, transfer-case, and front and rear axles will help. Attach one end to one of the top bolts of the Differential Cover and the other to somewhere that will keep the strap out of the way. As far as the ground straps for the axels go. Get some long enough to match your axel travel. Putting a zip tie tightly on the strap below your slack and hooking a lite spring to the zip tie and the grounding point on chassis will help prevent snagging it. For the trans and transfer-case grounding, ground with less slack. These additional straps should help keep the noise down.
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Old Aug 19, 2011 | 07:22 AM
  #18  
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there is no reason to ground your axles...I applaud your efforts but you've gone a bit overboard lol.
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Old Aug 19, 2011 | 09:53 AM
  #19  
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Originally Posted by dukie564
there is no reason to ground your axles...I applaud your efforts but you've gone a bit overboard lol.
He'll be prepared if he gets struck by lightning!
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Old Aug 19, 2011 | 09:49 PM
  #20  
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Yeah I thought the same thing but it worked! A friend of mine has been installing high end custom sound systems for over twenty five years and he told me that if it has spinning parts it creates static; if it’s not grounded do so. It helped to clean up the sound on my CB as well.
Being ready for a lightning strike is just a bonus!
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Old Aug 20, 2011 | 12:55 AM
  #21  
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Thanks for the good write up. I plan on doing my NSS some time soon before it fails. 120k on it so it is just about due.

Last edited by ornery owl; Aug 20, 2011 at 12:56 AM. Reason: NSS... not CPS
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Old Nov 1, 2011 | 07:50 PM
  #22  
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Thanks! My jeep wouldn't even think about starting. And I was randomly on the "ask a question thread" when I saw your post about the NSS. I went to this thread, read the write up about it, cleaned mine, and now it cranks like new! Thanks for the help! Oh, and here's a couple pics of mine before I cleaned it---- :0
Attached Thumbnails Non-Fuel/Spark-related / NO CRANK diagnostics - A Writeup!-image-1183750528.jpg   Non-Fuel/Spark-related / NO CRANK diagnostics - A Writeup!-image-420622925.jpg   Non-Fuel/Spark-related / NO CRANK diagnostics - A Writeup!-image-2016399592.jpg   Non-Fuel/Spark-related / NO CRANK diagnostics - A Writeup!-image-4152950689.jpg  
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Old Nov 2, 2011 | 01:46 PM
  #23  
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yup definitely needed it lol
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Old Dec 9, 2011 | 11:04 AM
  #24  
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If the Neutral Lights are working, can I then eliminate that my issue is with the NSS, or should I continue with Procedure 1 anyway? I suppose it wouldn't be a bad thing to check, however, the Jeep is my daily driver at the moment and I could definitely use any time saving I can get.

Thanks for your response!
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Old Dec 9, 2011 | 11:13 AM
  #25  
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are you getting any response when you turn the key at all? Like a click from the starter relay or hearing the fuel pump run?
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Old Dec 9, 2011 | 11:16 AM
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Originally Posted by dukie564
are you getting any response when you turn the key at all? Like a click from the starter relay or hearing the fuel pump run?
Yah, I can definitely hear the fuel pump kickin' in and I know it's working because I checked the bleeder valve that runs along the top of the intake manifold. Although, I am not hearing any click from the starter relay.

The battery is testing at about 14v. However, I was also thinking that it might be the alternator, but would that keep it from turning over?

Thanks for your replies... Really appreciate the input.

Last edited by chaneyz; Dec 9, 2011 at 11:22 AM.
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Old Dec 9, 2011 | 11:17 AM
  #27  
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Originally Posted by chaneyz
Yah, I can definitely hear the fuel pump kickin' in and I know it's working because I checked the bleeder valve that runs along the top of the intake manifold.
The battery is testing at about 14v. However, I was also thinking that it might be the alternator, but would that keep it from turning over?

Thanks for your replies... Really appreciate the input.
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Old Dec 9, 2011 | 11:36 AM
  #28  
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no a bad alternator would not keep it from turning over or running, as long as the battery has sufficient cranking amps remaining in it.

to test if it's the NSS or not, make sure the Jeep is in park, unplug the connector, and use a paper clip to jumper pins B and C together. If it starts the NSS needs a cleaning, if not move on. Also try wiggling the jumper clip around to make sure it has a good connection before ruling the NSS out

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Old Dec 9, 2011 | 12:01 PM
  #29  
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Thanks. I will give 'er a shot as soon as I leave work and let you know what the issue is. I really appreciate the advice.
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Old Dec 11, 2011 | 03:00 PM
  #30  
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Looks
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