92 Chevy wagon short?????

64osby

Admiral
Joined
Jul 28, 2009
Messages
6,826
Left my wagon sun roof and windows open about 2" last night and we had a little rain.

Car wouldn't start, low battery. Jumped it and drove to work. Had to come home to meet the well driller. Low battery no start, jumped and drove home.

During the drive home I was checking out some things. Cigar lighter would not work but when pushed in the radio would blank out and have an error message no time shown.

When I got home I pulled the #2 fuse, it was blown. Met with the well driller and started looking at the car.

I replaced the fuse and things were a little weird. The #2 fuse controls the lighter, rear window wiper, glove box light, rear gate open warning light, alert alarm for lights and key and the radio or part of the radio? The radio also has a seperate fuse. If I tried the lighter, wiper, or opened the glove box /light on/ - the radio would blank out, no music or time, and the rear gate warning light would glow. This would happen with or without the fuse in place. The new fuse did not blow.

I pulled the fuse and set a meter across the fuse, at times it read .2 volts and at times it read 1.4 volts, I could not figure out how or why it kept changing voltage.

I disconnected the glove box light, which had a slight glow even with the switch in the off position, unplugged the lighter, the rear gate plugs and the rear wiper. This did not effect the voltage draw.

The none of the items controled by fuse #2 were wet this morning. The seats and the door handle window switches and the seat controls were wet. These are not on fuse #2.



Any ideas on whats going on?
 

sublauxation

Lieutenant
Joined
Oct 13, 2008
Messages
1,317
Re: 92 Chevy wagon short?????

Did water run down the trim panels into the fuse box or possibly behind the fuse box? Put a fan on it to speed the drying process and hopefully everything will be magically fine in the morning. Last time my Ford did goofy electrical things I had one fuse that was half fried that had nothing to do with what was going on, and one that was fully fried. For some reason the combo caused a lot of weird things. I went through the whole fuse box checking continuity.
 

ac0j

Petty Officer 3rd Class
Joined
Apr 26, 2011
Messages
98
Re: 92 Chevy wagon short?????

I don't know if it is related to the rain or not, but it sounds like you have a ground problem in the dash.
 

dolluper

Captain
Joined
Jul 19, 2004
Messages
3,904
Re: 92 Chevy wagon short?????

If your radio has thieflock....get your code first....if not unplug the power wire....then test your box for draw....if still there unplug the cig lighter test again....these 2 have constant power ...unplug things one at a tme till your find the draw....check all grounds
To savely test a computer controlled car you can use a 10 ohem, 10 watt resistor cliped between the neg battery post and neg battery cable.....volt meter on either side of resistor and watch your voltage while pulling fuses or discontecting electrical conponents
 
Last edited:

64osby

Admiral
Joined
Jul 28, 2009
Messages
6,826
Re: 92 Chevy wagon short?????

I did a bunch of testing on draw of different stuff. I could find anything strange. I ended up checking the battery and one of the cells was bad.

Replaced the battery and all seems to be good.

Don't know if the water in the vehicle caused the problem or not but for right now I'm :)
 
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