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12-11-2018, 09:48 PM
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#1 |
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Registered User
Join Date: Oct 2008
Location: Marianna Arkansas
Posts: 7,280
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C-30 no crank still, fresh starter, Where is the NSS?
I suspect the way my truck is acting it seems like a Neutral safety switch so where is it. Before you race to tell me it is on the column down by the firewall, my truck is a granny low 4 speed manual trans. Thanks in advance for the help I'm drawing a blank
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12-11-2018, 10:00 PM
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#2 |
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Registered User
Join Date: Oct 2008
Location: Marianna Arkansas
Posts: 7,280
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Re: C-30 no crank still, fresh starter, Where is the NSS?
Ok so no NSS on the 4 speed trucks, is there a clutch switch or something? What keeps the truck from cranking with the clutch not pushed or the truck in gear. Isnt there some kind of power interrupter of some sort dealing with the clutch pedal?
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12-11-2018, 10:14 PM
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#3 |
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Moderator
 
Join Date: Jun 2017
Location: Cherryville, NC
Posts: 2,204
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Re: C-30 no crank still, fresh starter, Where is the NSS?
Try looking up on the clutch pedal...but it may have been removed....
Push and hold the clutch pedal down then try to crank... If still no crank, start from the basics... Make sure trans is in Neutral...and park brake applied Run a small clip on lead from the Solenoid terminal on the starter and tap the other end of lead to a positive battery source...starter motor should crank, if not, check ground strap battery to engine and engine to chassis. Get it to crank this way first...then go to next step. Remove ignition switch from dash, keeping plug attached to the switch... Turn ignition on and check for 12V battery terminal on switch... Turn switch to Start,,,check for 12 v on Sol terminal... If both are ok...run a temporary lead from Sol terminal on switch to Solenoid on Starter... Turn ign switch to crank and engine should crank... If yes...you have a wiring loom issue... In most cases the NSS fails internally....you can bypass it and leave the temp lead in place.. Let us know how you go..  
__________________
Family and country before all others... 2006 Chevy Silverado (Daily Driver) 2012 Chevy Equinox 
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12-12-2018, 08:26 PM
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#4 |
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Moderator
Join Date: Jun 2017
Location: Cherryville, NC
Posts: 2,204
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Re: C-30 no crank still, fresh starter, Where is the NSS?
One of the most common areas of failure in the loom is the cabin to engine bay connector plug...drivers side near the hood hinge...
They corrode badly.... Just a suggestion...
__________________
Family and country before all others... 2006 Chevy Silverado (Daily Driver) 2012 Chevy Equinox
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12-12-2018, 08:32 PM
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#5 | |
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Who's got steelies?
 
Join Date: Feb 2006
Location: Morrison, Oklahoma
Posts: 1,025
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Re: C-30 no crank still, fresh starter, Where is the NSS?
Quote:
If the purple wire looks discolored at the back of the switch, it is likely the switch or plug.
__________________
1969 C10 LWB W/ 250 I6 & 3spd1970 C10 with '67 small window cab, 68 front end, blue; 305/TH350, 3.08 limited slip rear end, manual brakes, power steering; & 4-wheel drums-My daily driver.1975 Chevelle Malibu Classic Coupe 350/th350 mint green1970 C20 Suburban 350/700R4 4.10 gearing green & white 1978 Big 10 Silverado 350/th350, working ac, 2 tone blue-My summer daily driver 1983 GMC 1500 Sierra 305/SM465 2.73 rear end How to add a trip odometer to your 67-72 stock speedometer How to rebuild your Q-Jet My Truck Page My Youtube Channel |
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12-12-2018, 09:41 PM
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#6 |
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Registered User
Join Date: Jul 2012
Location: Marshall, NC....heart of the Appalachians.....aka, Gods country!!
Posts: 537
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Re: C-30 no crank still, fresh starter, Where is the NSS?
don't overlook fusible links...chased my tail for a while because of a failed link.
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12-13-2018, 09:05 PM
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#7 |
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Registered User
Join Date: Dec 2009
Location: El Dorado Ca
Posts: 3,374
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Re: C-30 no crank still, fresh starter, Where is the NSS?
sub'd
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