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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: Skunksmash on October 14, 2008, 01:28:26 am

Title: Another electrical problem
Post by: Skunksmash on October 14, 2008, 01:28:26 am

I seem to be having some kind of electrical problem with my truck. (87 silverado half ton TBI 2wd 700R4) I will just be driving down the road and it will die, as though i shut off the switch. I can pull over to the side of the road and the engine will turn over, but i can't get it to start up. Then, if i wait anywhere from 10 seconds to 10 minutes, (and it has taken up to 10 minutes) the truck will just decide to let me start it up, out of the blue. I should also say that the starter and the power windows and locks still work when the truck pulls this little stunt but the headlights and interior lights seem to go out and not function. Then i will try to start it, and if a little time has passed and the truck feels like it, everything will start working again and it will start right up as if nothing was ever wrong and run fine. This seems to be happening more and more frequently. Any idea what this could be? Right now i can't even risk driving the truck until i get this fixed. There is no telling when and where it will leave me stranded. Next time may be the last time it decides it wants to restart and i will end up having to tow it home.

Title: Re: Another electrical problem
Post by: Prong on October 14, 2008, 04:37:27 am

First place I'd check is the ignition module. If that checks out ok, you may have a fuel pump on the way out.

Title: Re: Another electrical problem
Post by: VileZambonie on October 14, 2008, 06:13:42 am

Check your fusible links and connections. Tug on the fusible links, if they feel soft or seperate you've found your source. From there you'd need to identify what caused them to fail but just check them quickly and see if that's the case.

Title: Re: Another electrical problem
Post by: Skunksmash on October 14, 2008, 02:28:33 pm

Dang, i forgot what a fusible link was.

Title: Re: Another electrical problem
Post by: Lt.Del on October 14, 2008, 03:07:29 pm

do a search on this site

http://forum.73-87chevytrucks.com/smforum/index.php?action=search2 (http://forum.73-87chevytrucks.com/smforum/index.php?action=search2)


The fusible links are wires with a fat-type plastic piece which is a fuse.  There is one near the starter, one on the firewall....

Title: Re: Another electrical problem
Post by: Prong on October 14, 2008, 03:26:43 pm

Quote from: Prong on October 14, 2008, 04:37:27 am

First place I'd check is the ignition module. If that checks out ok, you may have a fuel pump on the way out.

That's what I get for trying to read comprehensively before bedtime. Didn't see the part about you losing lighting.

Title: Re: Another electrical problem
Post by: hotrod24 on October 14, 2008, 03:30:08 pm

well if it is a fuse link here is a post on it i have had this trouble before and vile helped me

http://forum.73-87chevytrucks.com/smforum/index.php?topic=7402.0

Title: Re: Another electrical problem
Post by: Skunksmash on October 14, 2008, 05:14:10 pm

Nevemind, it was just some loose power wire under the dash. It explains why the headlights would go out too.

Title: Re: Another electrical problem
Post by: VileZambonie on October 14, 2008, 05:16:50 pm

Some loose power wire? That doesn't sound too good.

Title: Re: Another electrical problem
Post by: Lt.Del on October 14, 2008, 07:44:39 pm

Quote

Some loose power wire? That doesn't sound too good.

Fire!

It'll end up like my bro's expidition www.delbridge.net/expidition

Title: Re: Another electrical problem
Post by: Skunksmash on October 15, 2008, 12:29:47 am

Naw it was just some little wire. I replaced it totally with a new one and now its fine.