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#1 |
Registered User
![]() Join Date: Dec 2010
Location: Fruitport, Michigan
Posts: 172
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Won't start, What do you think?
My truck has set all summer (bad, I know). I have a 1968 GMC stepside with a 1972 chevelle 350 engine. I installed all new Universal joints and a midshift bearing this past winter. When I was done, I ran the truck (On jack stands) for about 15 minutes. I tried to start it last week and nothing. I had it on a trickle charger for more than 24 hours still nothing. I pulled starter and brought to local parts store and had it tested and it was fine. I double checked all wires and they look fine, connections are fine with no corrosion. I am not 100% sure I put the two small wires to the solenoid on correctly after re-installing starter. Do not know if that is an issue. I checked the ignition plug and it seems fine and the red battery light comes on when I turn the key. I am stumped as to what else to look at. Any help would be appreciated.
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#2 |
Registered User
Join Date: Aug 2009
Location: Bowser
Posts: 13,615
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Re: Won't start, What do you think?
Wires on the starter could be the problem.
Purple wire to the 'S' terminal and yellow wire to the 'I' terminal. If you can't see well it's purple on outside of solenoid and yellow inside closer to the block. Last edited by geezer#99; 09-06-2014 at 11:05 AM. |
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#3 |
Registered User
Join Date: Feb 2011
Location: Modesto, CA
Posts: 2,188
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Re: Won't start, What do you think?
If you know you may have done something wrong, start there. Does the starter click when you turn the key?
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#4 |
Registered User
![]() Join Date: Dec 2010
Location: Fruitport, Michigan
Posts: 172
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Re: Won't start, What do you think?
Starter does nothing at all. Acts like no power.
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#5 |
Registered User
Join Date: Aug 2009
Location: Bowser
Posts: 13,615
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Re: Won't start, What do you think?
What tranny?
It's either wiring or nuetral safety switch. |
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#6 |
Registered User
![]() Join Date: Dec 2010
Location: Fruitport, Michigan
Posts: 172
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Re: Won't start, What do you think?
It has the turbo 400. I think your on to something with the neutral safety switch. I did try moving the gearshift into neutral and it still did nothing.
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#7 |
Registered User
![]() Join Date: May 2012
Location: Anton, Texas
Posts: 2,364
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Re: Won't start, What do you think?
I would check the battery and make sure its still good, and clean the cables good. if you had to charge it , it might be dead.
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#8 |
Registered User
![]() Join Date: Dec 2010
Location: Fruitport, Michigan
Posts: 172
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Re: Won't start, What do you think?
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#9 |
Registered User
![]() Join Date: May 2012
Location: Anton, Texas
Posts: 2,364
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Re: Won't start, What do you think?
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#10 |
Registered User
Join Date: Jun 2013
Location: Somewhere
Posts: 3,076
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Re: Won't start, What do you think?
Try jumping from the big battery cable terminal on the solenoid to the S terminal on the solenoid.
The purple wire is on the S terminal, right? |
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#11 |
Registered User
Join Date: May 2011
Location: Fort Pierce, FL
Posts: 430
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Re: Won't start, What do you think?
When my neutral safety switch was out of adjustment, it would start if I lifted up on the gear shift selector. A quick, easy adjustment fixed it. Since it started and ran before, I agree it is the switch adjustment.
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#12 |
Msgt USAF Ret
![]() ![]() Join Date: Jan 2005
Location: Kalamazoo, Michigan
Posts: 8,714
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Re: Won't start, What do you think?
It's very easy to check the switch. Just pull the purple wire connector off of it and jumper between the wires in the connector. A small cotter key works great as a jumper or a small piece of 12 gauge wire. If the truck starts then the switch is bad or out of adjustment.
Careful though, the truck will start in gear if you jump the switch.
__________________
VetteVet metallic green 67 stepside 74 corvette convertible 1965 Harley sportster 1995 Harley wide glide Growing old is hell, but it beats the alternative. |
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#13 |
RAT1968 '68 Cab/'71 Parts
Join Date: Feb 2002
Location: Coarsegold, CA
Posts: 2,375
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Re: Won't start, What do you think?
I'm not much for telling anyone what they "should" do.
But, as much as it may be perfect cruising season, winter is coming up. And, if you want to know where key electrical components and wires are... and go? Or you'd like to know where some parts are hanging off the truck (or, at least were originally), sitting around with a cup of something and studying the charts in these books can be fun for some of us. That may sound lame. But I couldn't have built my trucks without without Forum Member's help OR either of these...Plus, I have a couple of other books for reference. The wiring book comes in all year formats, I think (there are differences from year to year, model to model of course...but any 67-72 book will generally get you there). Then again, I'm a geek. ![]() ![]()
__________________
M17 Coarsegold, CA RAT's shiny now. But always a rat. Last edited by magwakeenercew2jh; 09-08-2014 at 11:28 AM. |
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#14 |
Registered User
![]() Join Date: Apr 2014
Location: Thousand Oaks, CA
Posts: 118
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Re: Won't start, What do you think?
As mentioned here several times, you could try to jump it wiring your battery directly to the starter. I know you said the batter is good, lights turn on and all, but they can be very deceptive as well. If you have a "load" charger you can know for sure. Or simply use the battery on another vehicle.
my 2 cents... |
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#15 |
Registered User
![]() Join Date: Dec 2010
Location: Fruitport, Michigan
Posts: 172
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Re: Won't start, What do you think?
OK, finally got to this, problem was two fold. I checked neutral safety switch and it was unplugged! How that happened I'll never know. I plugged it in and it would not start. I jumpered the switch and it still would not start. I crawled underneath and dropped the starter. Reversed the two small wires and re-installed. Still jumpered, it started right up! I hooked neutral switch back up and adjusted and started right up!
Once again, this board helped me out! I monitor daily and I hope I can pay it forward! |
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