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94 s10blazer 4.3L vortex


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killion
Novice

May 10, 2009, 6:29 PM

Post #1 of 9 (1844 views)
94 s10blazer 4.3L vortex Sign In

hi i just recently purchased a 94 blazer and im having a problem with the digital dash it goes black when i hit the breaks and when the head lights are on.... just wondering if anyone could help me out im kinda clueless on what to do exactly


(This post was edited by killion on May 10, 2009, 6:31 PM)


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

May 11, 2009, 7:56 AM

Post #2 of 9 (1840 views)
Re: 94 s10blazer 4.3L vortex Sign In

Guess: Dash has a lousy ground to body connection or perhaps just that cluster. Know what you are doing and as a test try jumpering ground from solid body metal (ground) to cluster common ground or even common dash metal. This is just ground to ground stuff NOT adding power or messing with wires. If it fixes the trouble hit back and let's figure it out from there,

T



autojoe
User

May 11, 2009, 9:19 AM

Post #3 of 9 (1836 views)
Re: 94 s10blazer 4.3L vortex Sign In

Have a electrical check on your battery and charging system to rule that out.


killion
Novice

May 11, 2009, 6:03 PM

Post #4 of 9 (1826 views)
Re: 94 s10blazer 4.3L vortex Sign In

its a brand new battery i got the waranty with the truck so i dont think thats what it is


(This post was edited by killion on May 11, 2009, 6:07 PM)


killion
Novice

May 11, 2009, 6:17 PM

Post #5 of 9 (1824 views)
Re: 94 s10blazer 4.3L vortex Sign In

i also need to install a new egr valve, high Idle sensor, new blower motor, oil filter and tranny filter im not very experienced but any tips or suggestion would be greatly appreciated me and my buddy are ganna check grounds after work tommorow hopefully all goes well.... thank you very much for your advice


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

May 11, 2009, 7:59 PM

Post #6 of 9 (1821 views)
Re: 94 s10blazer 4.3L vortex Sign In

Just to add: New battery doesn't mean it's any good! What's with the EGR and other items? Why do you even suspect them?

The blower also needs ground or won't work nor would dashboard items. I already mentioned a way to test that. Dash metal is bolted to the body which is supposed to be grounded. All this at once still leads to suspect bad grounding somewhere.

EGR is kinda $$ - why not clean it out first?

T



killion
Novice

May 13, 2009, 6:00 PM

Post #7 of 9 (1803 views)
Re: 94 s10blazer 4.3L vortex Sign In

well it didnt go so well my friend was explaining to me how it worked and he hooked the tester up to the battery and blew the light in it sooo i have to buy a new one tommorow is there anywhere i can find a wiring diagram for my truck do you know of any free ones im having difficulty finding one


killion
Novice

May 15, 2009, 4:21 PM

Post #8 of 9 (1785 views)
Re: 94 s10blazer 4.3L vortex Sign In

ok well i found 2 grounds so far that are carroded plan on fixing them after work tommorow hopefully this will solve the problem if not i could still really use wiring diagram would greatly appreciate if some one hooked it up


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

May 16, 2009, 1:37 PM

Post #9 of 9 (1778 views)
Re: 94 s10blazer 4.3L vortex Sign In

IMO - you don't need daigrams unless wires are all missing or messed with. Fix what you see. GM and other the connections are an issue,

T







 
 
 






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