Please help with electrical problem!!

jquartucy · 06-29-2008, 08:45 PM

I have a 1993 Suburban. It was starting intermittently. Assumed it was the starter. Had it tested and it was fine. Then it started running rough. We parked it, and have had this problem ever since. It will not start. The headlights are stuck on. The right turn signal is stuck on. When you try to start it, the gages all max out and nothing. I have check every fuse and all the wires under the dash. I have pulled all the switches, including the headlight switch and the lights will not go off. I changed the ignition switch and same problem. Any ideas?

mudseeker · 06-29-2008, 09:49 PM

welcome to the forum.

not good with electrical, but i would trace your wires and look for a short.

jquartucy · 06-29-2008, 09:59 PM

I have tried that...about 2 days worth of searching. I can't see any bad wires.

heavychevy85 · 06-29-2008, 10:08 PM

clean all ur conections check and clean all grounds try the relays if they short stuff can go bonkers its there just gota find it

jquartucy · 06-29-2008, 10:10 PM

By testing relays do you mean removing them? I tried this and no luck.

gmctrucks · 06-29-2008, 11:44 PM

I really don't know somebody will chime in just wait have your battery checked a bad one will fool you good.

Chevy_Finatic79 · 06-30-2008, 07:30 AM

you need to do a spark test and a fuel test. we need to make sure you have spark and the injectors are dumping gas before you go on a wild bad wire goose chase.

things I'd suspect would be the distributor and it's components. Cap, wires, Ignition Module, Coil

06-29-2008, 08:45 PM	#1
jquartucy Junior Member Join Date: Jun 2008 Posts: 3	Please help with electrical problem!! I have a 1993 Suburban. It was starting intermittently. Assumed it was the starter. Had it tested and it was fine. Then it started running rough. We parked it, and have had this problem ever since. It will not start. The headlights are stuck on. The right turn signal is stuck on. When you try to start it, the gages all max out and nothing. I have check every fuse and all the wires under the dash. I have pulled all the switches, including the headlight switch and the lights will not go off. I changed the ignition switch and same problem. Any ideas?

06-29-2008, 09:49 PM	#2
mudseeker mod-o-tator Join Date: Feb 2006 Location: michigan Posts: 4,508	welcome to the forum. not good with electrical, but i would trace your wires and look for a short. __________________ member map add yourself alldatadiy why is it, when i push one for english, i still can't understand the person on the other end?

06-30-2008, 07:30 AM	#7
Chevy_Finatic79 Senior Member Join Date: Mar 2008 Location: Lincoln NE Posts: 442	you need to do a spark test and a fuel test. we need to make sure you have spark and the injectors are dumping gas before you go on a wild bad wire goose chase. things I'd suspect would be the distributor and it's components. Cap, wires, Ignition Module, Coil __________________ "She's gonna Freak when she see's my wheels" 85' Chevy C-10 Longbox (Rat) TBI 5.7 Liter/THM350 90' Chevy Suburban 4x4 TBI 350 Cu.In./700R4 http://www.truckforum.org/forums/truck-pictures-176.htm

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06-29-2008, 09:59 PM	#3
jquartucy Junior Member Join Date: Jun 2008 Posts: 3	I have tried that...about 2 days worth of searching. I can't see any bad wires.

06-29-2008, 10:08 PM	#4
heavychevy85 Senior Member Join Date: May 2008 Location: Muncy, PA Posts: 262	clean all ur conections check and clean all grounds try the relays if they short stuff can go bonkers its there just gota find it

06-29-2008, 10:10 PM	#5
jquartucy Junior Member Join Date: Jun 2008 Posts: 3	By testing relays do you mean removing them? I tried this and no luck.

06-29-2008, 11:44 PM	#6
gmctrucks Senior Member Join Date: Nov 2006 Location: Houston,Texas Posts: 1,966	I really don't know somebody will chime in just wait have your battery checked a bad one will fool you good.