germilns in my truck - The 1947 - Present Chevrolet & GMC Truck Message Board Network

silvereagle1770 · 11-08-2002, 10:51 AM

well i came over here with the rest of you guys now i need some help with my truck ive tried every thing i can think of. my lights and turn singals are going nuts the riht side works fine but the left side has lost it ok .when i turn on the left blinker it works but if i turn on the lights it stops blinking when i turn off the lights it starts blinking againe ive traced all the wires and cant find nothing wrong with them checked all the grounds but im not finding what would cause this anybody know any suggestion would help thanks

LOHRTBT · 11-08-2002, 11:10 AM

Have you tried something as simple as getting a new signal relay??? they can make a system act really weird. Also...try checking all the turn signal bulbs. if they are dual filiment and one is out...it will make it act weird too.

mxz600 · 11-08-2002, 11:18 AM

Had a similiar problem with mine. First, thing I did was check grounds. All grounds checked out okay.

Put new grounds on everything. ie... Core support, cab, even the bed. Just to make sure, no help.

Checked wires at junction where bed wiring harness connects to wires leading up front. Had power in all wires. Knew that was wrong.

What I found was that the driverside rear taillight is grounded to the box, then it's spliced there and then heads over to the passenger side taillight. The splice was bad. Where the wire attached to the bed was grounded, but after the splice it had power. Redid the splice and corrected the problem. When lights act screwed up like that, it's a bad ground.

Hope this helped.

Jay

mxz600 · 11-08-2002, 11:20 AM

By the way, where are you located in Michigan. I'm south
of Port Huron.

Jay

gchemist · 11-08-2002, 11:52 AM

I had a similar problem. If all the bulbs are the correct size, your turn signal switch under the steering wheel is probably bad. My blinkers were hay wire until I changed the switch. Cost about $35 for a new one. It's just PIA to get the steering wheel off and on.

silvereagle1770 · 11-08-2002, 04:57 PM

checked all the grounds and light bulbs too cant seem to find out what is causing it yet changed the headlight switch didnt help its just the left side giving me problems gonna look behind the fuse box in a little while see if something there is fried by the way jay im in between flint and lansing a town called owosso thanks for the replies

11-08-2002, 10:51 AM	#1
silvereagle1770 Registered User Join Date: Oct 2002 Location: michgan Posts: 57	germilns in my truck well i came over here with the rest of you guys now i need some help with my truck ive tried every thing i can think of. my lights and turn singals are going nuts the riht side works fine but the left side has lost it ok .when i turn on the left blinker it works but if i turn on the lights it stops blinking when i turn off the lights it starts blinking againe ive traced all the wires and cant find nothing wrong with them checked all the grounds but im not finding what would cause this anybody know any suggestion would help thanks

11-08-2002, 11:10 AM	#2
LOHRTBT BeWarE tHe eViL CrAnkTOe! Join Date: Oct 2002 Location: Yukon, OK Posts: 3,605	Have you tried something as simple as getting a new signal relay??? they can make a system act really weird. Also...try checking all the turn signal bulbs. if they are dual filiment and one is out...it will make it act weird too. __________________ ~Dave~ You can call me Mike, Mike Oxlong - 1986 Chevy SWB - Stock for now - *1986 Chevy Custom SWB* *Stolen 6/26/05* - 1985 Chevy SWB SOLD - 1999 T/A Some mods www.cardomain.com/id/ramairdave AIM Screenname - Jester84

11-08-2002, 11:18 AM	#3
mxz600 Registered User Join Date: Nov 2002 Location: East China Posts: 9	Had a similiar problem with mine. First, thing I did was check grounds. All grounds checked out okay. Put new grounds on everything. ie... Core support, cab, even the bed. Just to make sure, no help. Checked wires at junction where bed wiring harness connects to wires leading up front. Had power in all wires. Knew that was wrong. What I found was that the driverside rear taillight is grounded to the box, then it's spliced there and then heads over to the passenger side taillight. The splice was bad. Where the wire attached to the bed was grounded, but after the splice it had power. Redid the splice and corrected the problem. When lights act screwed up like that, it's a bad ground. Hope this helped. Jay __________________ 84 Chevy K20 99 Chevy Big Block Burb

11-08-2002, 11:20 AM	#4
mxz600 Registered User Join Date: Nov 2002 Location: East China Posts: 9	By the way, where are you located in Michigan. I'm south of Port Huron. Jay __________________ 84 Chevy K20 99 Chevy Big Block Burb

11-08-2002, 11:52 AM	#5
gchemist BAD BOW-Silverado XST Join Date: May 2000 Location: Senior Member from Austin, TX Posts: 6,431	I had a similar problem. If all the bulbs are the correct size, your turn signal switch under the steering wheel is probably bad. My blinkers were hay wire until I changed the switch. Cost about $35 for a new one. It's just PIA to get the steering wheel off and on. __________________ Gerardo a.k.a. Mad Chemist Silverado XST videos

11-08-2002, 04:57 PM	#6
silvereagle1770 Registered User Join Date: Oct 2002 Location: michgan Posts: 57	checked all the grounds and light bulbs too cant seem to find out what is causing it yet changed the headlight switch didnt help its just the left side giving me problems gonna look behind the fuse box in a little while see if something there is fried by the way jay im in between flint and lansing a town called owosso thanks for the replies

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