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#1 |
Registered User
Join Date: Sep 2014
Location: Raleigh North Carolina
Posts: 66
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Neutral Safety Switch?
if the neutral safety switch is bad will it keep burning out starters and i dont have back up lights and it starts in drive and its a 1971 c20 350 3 spd automatic
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#2 |
Registered User
Join Date: Nov 2015
Location: Brighton, Co
Posts: 13
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Re: Neutral Safety Switch?
These older trucks didn't have neutral safety switches. I don't think they started being used until the mid 70's. I could be wrong though. I know that my 72 c20 doesn't have one. But my old 86 suburban did. Hope that helps
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#3 |
Registered User
Join Date: Mar 2009
Location: WARRENSBURG,MISSOURI,64093
Posts: 1,518
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The switch depends on either it being a automatic or standard transmission. The automatic trans trucks it is on the steering column, on top of the tube near the firewall, probably next to the rubber seal.the standard transmission trucks had the switch on the transmissions.it has two purple wires on it and two green wires for the back up lights.
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#4 |
Senior Member
![]() Join Date: Jun 2005
Location: Winona Lake, IN
Posts: 6,284
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Re: Neutral Safety Switch?
To answer your question, no it will not burn up the starter. It may cause a non-crank issue, but if the switch is bad, it will not send power to the starter solenoid via the purple wire.
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#5 |
Registered User
Join Date: Aug 2006
Location: Redmond, WA
Posts: 6,332
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Re: Neutral Safety Switch?
Switch is bad or at a minimum severely misadjusted. That's why it starts in Drive and why you are missing backup lights. Grab a new one, problem solved!
If it came loose on the column, even easier, but unlikely unless you've been monkeying with it recently.
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1970 GMC Sierra Grande Custom Camper - Built, not Bought 1969 Pontiac 2+2 427/390 4-speed Coupe 1969 Pontiac 2+2 427/390 4-speed Convertible |
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#6 |
Special Order
![]() ![]() Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,859
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Re: Neutral Safety Switch?
I've had intermittent cranking issues due to the neutral safety switch. Sometimes fine, sometimes nothing, sometimes cranking then clunking then disengaging. The symptoms can be like a bad starter, bad teeth, bad ignition switch, or anything other issues that occur in the start circuit
No neutral safety switch on manuals till later years
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