headlight and turn signal problem - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Tom · 02-09-2005, 03:53 PM

Im having a problem with my passenger side headlight. It started a couple weeks ago when my drivers side turn signal indicator came and stayed on with the headlights on. It only goes off when the left turn signal is engadged, then it acts normal. I found my drivers side turn signal bulb out, so I replaced it. This made the drivers side indicator turn off back to normal, but then the passenger side one came and stayed on. Again, same as drivers side, I found the bulb out. I replaced it, but the passenger side indicator is still on. Also, my passenger side headlight is hardly putting any light out at all. I put a new one in, no change. I checked all the wiring by the headlights, everything looks ok. Any ideas on what could be wrong?

60-66 Nut · 02-09-2005, 04:16 PM

Sounds like you might have a ground problem. Check the ground wires that bolt up to the radiator support, I think there are some on both sides. Make sure they are clean and tight. Hope that helps.

60-66 Nut

CbHeEaVsYt · 02-10-2005, 12:25 AM

do both inside turn signals come on when u hit the brake??

cb

Truckstuff · 02-10-2005, 01:14 AM

Also check the ground wire in the driver side rear tail light behind the assembly.

Tom · 02-10-2005, 01:44 AM

No, neither lights come on during braking, but the right side one is always on unless the turn signal is engaged.

CbHeEaVsYt · 02-10-2005, 03:37 AM

u might wanna check ur emergency flasher nob make sure its off cause i had a similiar prob when i first got my truck and u might wanna check the flasher in the fuse box

hope it helps

cb

blink32 · 02-10-2005, 08:28 AM

Dig up your wiring diagrams and Ohm out your headlight switch. Or just replace it to see if that changes things (about $10-15 if I remember correctly) All kinds of goofy lighting issues can occur if your switch is going bad as all power for the dash gauges runs through it if you trace the wires back.

02-09-2005, 03:53 PM	#1
Tom driving is in my blood Join Date: Dec 1999 Location: Mesa AZ Posts: 5,713	headlight and turn signal problem Im having a problem with my passenger side headlight. It started a couple weeks ago when my drivers side turn signal indicator came and stayed on with the headlights on. It only goes off when the left turn signal is engadged, then it acts normal. I found my drivers side turn signal bulb out, so I replaced it. This made the drivers side indicator turn off back to normal, but then the passenger side one came and stayed on. Again, same as drivers side, I found the bulb out. I replaced it, but the passenger side indicator is still on. Also, my passenger side headlight is hardly putting any light out at all. I put a new one in, no change. I checked all the wiring by the headlights, everything looks ok. Any ideas on what could be wrong? __________________ -78 c10 short/step: 388cid, M20, 5/5 drop, lots more. Playtoy and first vehicle. -98 c1500 x-cab: 5.7L, 17" rims, 5/6 drop, flowmaster, helper bags,NBS rear disk brakes. -02 Suburban 4x4: leveled front -CBR600F4i, CBR600RR, CBR1000RR, and standup skis DISCLAIMER: I cant spell for the life of me.

02-09-2005, 04:16 PM	#2
60-66 Nut Professional Beer Tester Join Date: Aug 2004 Location: Louisiana Posts: 453	Sounds like you might have a ground problem. Check the ground wires that bolt up to the radiator support, I think there are some on both sides. Make sure they are clean and tight. Hope that helps. 60-66 Nut __________________ 60 Ford F100 Custom Cab 61 Apache Short Fleetside 64 C10 Short Stepside 65 C80 409 V8 5spd(X-Firetruck) 83 GMC 350 Olds Diesel 85 GMC Short Bed 86 GMC Short Bed 90 GMC R3500 Crew Cab 92 GMC 1500

02-10-2005, 12:25 AM	#3
CbHeEaVsYt Pick up man Join Date: Feb 2005 Location: trenton mi Posts: 135	do both inside turn signals come on when u hit the brake?? cb __________________ heres sum pics of my truck 82 silverado c10 heres my baby 1990 k1500 check out this 1957 chevrolet for sale

02-10-2005, 01:14 AM	#4
Truckstuff Registered User Join Date: Dec 2003 Location: Cloverdale, British Columbia Canada Posts: 159	Also check the ground wire in the driver side rear tail light behind the assembly. __________________ Real Trucks are Built not Bought Building: 1981 GM SB LowRider 1985 GM K3500 3+3 1981 GM K2500 SSB 1980 GM K2500 X-BC Hydro 1979 GM K3500 3+3 1976 GM K5 Blazer 1970 Custom 10 http://bc4x4.com/

02-10-2005, 01:44 AM	#5
Tom driving is in my blood Join Date: Dec 1999 Location: Mesa AZ Posts: 5,713	No, neither lights come on during braking, but the right side one is always on unless the turn signal is engaged. __________________ -78 c10 short/step: 388cid, M20, 5/5 drop, lots more. Playtoy and first vehicle. -98 c1500 x-cab: 5.7L, 17" rims, 5/6 drop, flowmaster, helper bags,NBS rear disk brakes. -02 Suburban 4x4: leveled front -CBR600F4i, CBR600RR, CBR1000RR, and standup skis DISCLAIMER: I cant spell for the life of me.

02-10-2005, 03:37 AM	#6
CbHeEaVsYt Pick up man Join Date: Feb 2005 Location: trenton mi Posts: 135	u might wanna check ur emergency flasher nob make sure its off cause i had a similiar prob when i first got my truck and u might wanna check the flasher in the fuse box hope it helps cb __________________ heres sum pics of my truck 82 silverado c10 heres my baby 1990 k1500 check out this 1957 chevrolet for sale

02-10-2005, 08:28 AM	#7
blink32 Registered User Join Date: Dec 2003 Location: OTR Posts: 338	Dig up your wiring diagrams and Ohm out your headlight switch. Or just replace it to see if that changes things (about $10-15 if I remember correctly) All kinds of goofy lighting issues can occur if your switch is going bad as all power for the dash gauges runs through it if you trace the wires back.



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