All Power cuts out - The 1947 - Present Chevrolet & GMC Truck Message Board Network

jasonrog · 09-13-2006, 01:08 PM

Recently my 71 started to die on me. When I am driving, I will loose all electrical power for a few seconds. Motor dies, radio dies, volt guage dies to. after a few seconds, it will start up and I am on my way. The truck has a 350 in it with the serpentine system from a 90 chevy truck. Everything else is stock. Has anyone experienced this before? I don't know where to begin looking, so any help would be greatly apreciated.

thanks
Jason

Musclerodz · 09-13-2006, 02:02 PM

If everything is dying, check your main battery cables for a loose ground.

mike

**truckdude239** · 09-13-2006, 02:22 PM

check the juntion box on the fender well next to the batery mine did this

lpaine · 09-13-2006, 06:23 PM

Do you still have the old external voltage regulator? That could be the source of your problems. Also check both battery cables, check voltage across the battery with the engine off and again with the engine running. Best of luck.

Jayss109 · 09-13-2006, 06:58 PM

Mine did that for a bit....battery cable had melt and was grounding out on the exhaust when i made right turns!!!

never hurts to check

Jason
________
Homemade soldering station

*rage'nrat638* · 09-13-2006, 07:59 PM

Quote:

Originally Posted by truckdude239

check the juntion box on the fender well next to the batery mine did this

i second that...mine did this too...

dwaite72lnghrn · 09-13-2006, 10:21 PM

Sounds like the battery is shorting out internally.

krue · 09-13-2006, 11:38 PM

Check your cable going to the starter.

garold99 · 09-14-2006, 07:33 AM

Mine did that. I had a short on the ignition wire at the starter. We found it by pulling it in the garage and turning off the lights and trying to start it. We was able to see a spark down by the ignition.

Also just recently that same wire was burned through from touching the headers, which would short it when I tried to start it.

jasonrog · 09-15-2006, 02:18 AM

I have checked the battery cables, the distribution block. I do not have the external regulator. It happened again to me about 5 times on my ride home tonight. Something is telling me it is the ignition switch. Is this possible?

smalltowncowboy · 09-15-2006, 05:06 AM

i had a 70 that was doing this, theres no predetermined time or distance, sometimes it was 5 feet other times it was 10 miles. on mine it was the junction box on the firewall. my ignition wire was stock for the old truck and was the kinf that had the cloth insulation. by looking at it you couldnt tell till you felt it, it was hot. i had to drill a hole in the forewall and run my new ignition wire from the starter to the switch with an inline fuse (make sure you put in a fuse). hoope this helps you

09-13-2006, 01:08 PM	#1
jasonrog Registered User Join Date: Sep 2000 Location: Winnipeg, Manitoba Canada Posts: 248	All Power cuts out Recently my 71 started to die on me. When I am driving, I will loose all electrical power for a few seconds. Motor dies, radio dies, volt guage dies to. after a few seconds, it will start up and I am on my way. The truck has a 350 in it with the serpentine system from a 90 chevy truck. Everything else is stock. Has anyone experienced this before? I don't know where to begin looking, so any help would be greatly apreciated. thanks Jason

09-13-2006, 02:02 PM	#2
Musclerodz Senior Member Join Date: Aug 2005 Location: OKC, OK Posts: 2,365	Re: All Power cuts out If everything is dying, check your main battery cables for a loose ground. mike __________________ Mike Redpath

09-13-2006, 02:22 PM	#3
truckdude239 Senior Member Join Date: Sep 2005 Location: Lewisville, Nc Posts: 10,234	Re: All Power cuts out check the juntion box on the fender well next to the batery mine did this __________________ David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube

09-13-2006, 06:23 PM	#4
lpaine Registered User Join Date: Oct 2002 Location: Parksville, B.C. Canada Posts: 637	Re: All Power cuts out Do you still have the old external voltage regulator? That could be the source of your problems. Also check both battery cables, check voltage across the battery with the engine off and again with the engine running. Best of luck. __________________ 1969 G.M.C 3/4 Ton 920 (Canadian Version) 307 3 speed, currently apart 1998 Chevy 1/2 ton ex cab V-6 5 speed 1967 Chevy SWB - project truck; not started just yet

09-13-2006, 06:58 PM	#5
Jayss109 Active Member Join Date: May 2005 Location: San Jose, CA Posts: 235	Re: All Power cuts out Mine did that for a bit....battery cable had melt and was grounding out on the exhaust when i made right turns!!! never hurts to check Jason ________ Homemade soldering station Last edited by Jayss109; 04-27-2011 at 11:40 PM.

09-13-2006, 10:21 PM	#7
dwaite72lnghrn Registered User Join Date: Jun 2002 Location: central pa Posts: 1,525	Re: All Power cuts out Sounds like the battery is shorting out internally. __________________ 72 longhorn c30 502BB/th400/fact air/4.11rear/ custom camper 72 bug(the better half's) under reconstruction 2009 HHR aqua blue 71 GMC k20 350/sm465 2009 Chevy hd3500 6.6 Victory Red crew cab dually Dave & Jeanne

09-13-2006, 11:38 PM	#8
krue Designated A-hole! Join Date: Mar 2003 Location: South Mississippi Posts: 36,450	Re: All Power cuts out Check your cable going to the starter. __________________ "If it ain't broke, fix it 'til it is!" Being stupid ain't illegal. We're Still Debt Free Except for the House!!! www.daveramsey.com 70 GMC SWB Stepside project "Green Booger" soon to be 6.0l/4l80e 93 S-10 "Poppaw's Truck"

09-14-2006, 07:33 AM	#9
garold99 Registered User Join Date: Nov 2004 Location: Moore, Oklahoma Posts: 129	Re: All Power cuts out Mine did that. I had a short on the ignition wire at the starter. We found it by pulling it in the garage and turning off the lights and trying to start it. We was able to see a spark down by the ignition. Also just recently that same wire was burned through from touching the headers, which would short it when I tried to start it. Last edited by garold99; 09-14-2006 at 07:34 AM.

09-15-2006, 02:18 AM	#10
jasonrog Registered User Join Date: Sep 2000 Location: Winnipeg, Manitoba Canada Posts: 248	Re: All Power cuts out I have checked the battery cables, the distribution block. I do not have the external regulator. It happened again to me about 5 times on my ride home tonight. Something is telling me it is the ignition switch. Is this possible?

09-15-2006, 05:06 AM	#11
smalltowncowboy Registered User Join Date: Sep 2006 Location: hermiston, OR Posts: 10	Re: All Power cuts out i had a 70 that was doing this, theres no predetermined time or distance, sometimes it was 5 feet other times it was 10 miles. on mine it was the junction box on the firewall. my ignition wire was stock for the old truck and was the kinf that had the cloth insulation. by looking at it you couldnt tell till you felt it, it was hot. i had to drill a hole in the forewall and run my new ignition wire from the starter to the switch with an inline fuse (make sure you put in a fuse). hoope this helps you Last edited by smalltowncowboy; 09-15-2006 at 05:07 AM.



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