The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board > The 1973 - 1991 Blazers, Jimmys, and Suburbans Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 02-16-2010, 03:20 PM   #1
rcbildr
Registered User
 
rcbildr's Avatar
 
Join Date: Sep 2000
Location: Gold Bar, WA
Posts: 1,216
Need help with electrical problem

I have bad eletrical connection somewhere in my 85 Suburban. It loses power just enough to shut down the engine and it does not happen consistently....I see the volt gage jump when it happens. I'm pretty sure its somewhere on in the main power wiring. Could this be a sign one of the fusible links is going bad? I'm going to double check the connections at the starter and alternator again, but I'm thinking I'm missing something. Does anyone have any other ideas? Thanks!!!
__________________
My Projects:
1960 GMC 1/2ton with 305 V6 (daily driver)
1963 Chevy 1/2ton 2wd...converting to 4x4
1967 Suburban 1/2ton 2wd

My Girlfriends Projects
1985 Chevy Suburban 3/4ton 4x4 with 6.2L diesel, 4" lift, converted to TH-400, Warn Premium manual hubs, & Wildcat 315/75/R16 tires. (daily driver)
1978 Camaro Type LT with a Marine 350 & vortec heads, Rochester Carb, & roller cam
1978 Camaro Z28

Last edited by rcbildr; 02-16-2010 at 03:20 PM.
rcbildr is offline   Reply With Quote
Old 02-17-2010, 02:40 PM   #2
tvblazer78
Low & Fast!
 
tvblazer78's Avatar
 
Join Date: Jan 2007
Location: Knoxville, TN
Posts: 3,110
Re: Need help with electrical problem

Anyone?
tvblazer78 is offline   Reply With Quote
Old 02-17-2010, 10:05 PM   #3
Daggar
Registered User
 
Daggar's Avatar
 
Join Date: May 2007
Location: Calgary, Alberta, Canada
Posts: 42
Re: Need help with electrical problem

On my 87 I had the same issue. Occasionally while driving usually after a bump my engine would die. The Positive wire that runs to starter has a connector on it were the wire goes from 12 awg (aprox) to 14 awg (aprox). My stupid connector started to corrode and at first I thought it was a fuseable link but after disecting it I found it was just a palin connector. So I cut it out and soldered the 2 wires together and weatherproofed it. The problem never reoccured after that
__________________
1999 Chevrolet Suburban 2500 4x4 - 454, 4L80E and lots of other fun options

1967 Chevrolet C10 Longbox Stepside - Restored


1991 Chevrolet Suburban 2500 4x4 - 350, 4L80E - Not dead but severly crippled
1987 GMC Suburban 1500 - Now some retired guy's trailer hauler
1992 Lumina Z34 - I'll miss that PITA
Daggar is offline   Reply With Quote
Old 02-18-2010, 11:04 AM   #4
rcbildr
Registered User
 
rcbildr's Avatar
 
Join Date: Sep 2000
Location: Gold Bar, WA
Posts: 1,216
Re: Need help with electrical problem

Weird thing is with this problem, I can go over bumps...I have to cross railroad tracks to get out of my neighborhood...and the truck is fine. When I get some free time at home I'm gonna check that connection and make a new fusible link.
__________________
My Projects:
1960 GMC 1/2ton with 305 V6 (daily driver)
1963 Chevy 1/2ton 2wd...converting to 4x4
1967 Suburban 1/2ton 2wd

My Girlfriends Projects
1985 Chevy Suburban 3/4ton 4x4 with 6.2L diesel, 4" lift, converted to TH-400, Warn Premium manual hubs, & Wildcat 315/75/R16 tires. (daily driver)
1978 Camaro Type LT with a Marine 350 & vortec heads, Rochester Carb, & roller cam
1978 Camaro Z28
rcbildr is offline   Reply With Quote
Old 02-25-2010, 10:40 PM   #5
muddyblazer02
Registered User
 
muddyblazer02's Avatar
 
Join Date: Sep 2007
Location: Austin, Tx
Posts: 50
Re: Need help with electrical problem

check all the grounds. take them loose and clean them and reinstall. start with the simple stuff and you will usually find your problem.
Ken
__________________
truck junkie
muddyblazer02 is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 10:53 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com