Gauge/Elec. Problems

W1CK3D SAINT

New member
i apologize if this has been discussed already. i did a few searches, but didn't quite find exactly what i was looking for. I'm having several electricity and gauge issues and i would appreciate any advice i can get as to what might be the cause(s)?

Symptoms:

-oil gauge works very sporadically. half the time it reads zero pressure and engages check gauges light.
-sometimes when i rev it up the rpm needle flips over and rests on the boost gauge. returns to normal position when vehicle is turned off and restarted.
-volt meter drops noticibly when headlights are turned on.
-when h.lights are off and the turn signal is activated, the volt needle moves up and down slightly in conjunction with the turn signal blinking.
-voltage started to drop off while driving today so i turned off lights and any other non-vital electronics. i made it home and let the truck idle for a minute until it died. i tried to restart it, but the battery was dead.
-while driving with the low voltage the speedo was kind of lagging and sort of all over the place.
-i put in a BRAND NEW battery and the voltage doesn't read any higher than just above the line below the halfway point... and reads just below the line when the lights are on.
-not sure if it's related but when i start the ty the rpms usually go to 1500 before settling at 800... and sometimes after it goes down to 800 it will stall out.

what do the educated syty owners think out there? short(s), grounds, alternator?

:bad-word: just getting kind of frustrated cuz i blew almost all my money on the ty, have had it for only a week, and have been spending more time trying to deal with the problems than driving it. The previous owner seemed to take pretty good care of it and is a member of the site so i don't think it's a case of it being improperly cared for.

i may have to take it to a shop, because i don't currently have the resources at hand to find what's wrong and fix it myself.

-Thanks
 

Tooky

Serious about performance
Re: Gauge/Elec. Problems

I would be suspicious of the stock wiring harness being hacked up for aftermarket parts. Check any non stock wiring and verify the main grounds - DaveP just posted in another thread recently with a list of all 6(?) grounds.

Chasing electrical problems can be a real bitch to troubleshoot, at least for me.
 

W1CK3D SAINT

New member
Re: Gauge/Elec. Problems

Thanks for the advice guys. I talked to a friend of mine and he also thinks it's the alternator (for most of the problems). I'm currently in the process of removal, but it's slow going. Mostly, because I'm not just new to SyTys, but new to most automotive workings. That's the result of finding out that you're into cars well after high school :doh: I'm trying my best to learn all the basics and this site is a really great resource for anything I need to know. Pretty soon I'll have it going strong again and my next step is to figure out why it's running so rich... even for a SyTy lol
 

Tooky

Serious about performance
Re: Gauge/Elec. Problems

Don't feel bad, I was the same way. I bought my truck in 2001 and I was 20 years old and couldn't change my own oil. SyTys require a lot of hands-on so you learn as you go.. :)
 

socalblue

New member
Re: Gauge/Elec. Problems

welcome to the club as you will find out u aren't the only one with enough problems to keep you busy...for starters my temp gauge doesn't work on both my 93 ty and 94 s10 even after changing the temp swith/sensor so I'm guessing GM did poor work there...also when I go over bumps, my s10's abs warning light comes on then turns off...and when i get on the gas too hard the 1-2 shift blows my ecm fuse so I always carry extra fuses with me, I've been told its the fuel pump goin out anyways sorry to rant but hang in there!!! Electrical issues are always hard to figure out.
 

W1CK3D SAINT

New member
Re: Gauge/Elec. Problems

Well, I successfully replaced the alternator and while I was at it, I replaced the serpentine. Everythings working fine now... even the oil gauge. That one surprised me.

Once again, Thanks to all :tup:
 
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