Wiring, Stereo & Electronics Audio Components | Radars | Alarms - and things that spark when they shouldn't

Headlight Problem...

Thread Tools
 
Search this Thread
 
Old Jul 11, 2010 | 05:49 PM
  #1  
Storm Trooper's Avatar
Thread Starter
TECH Apprentice
15 Year Member
Photogenic
iTrader: (11)
 
Joined: Dec 2009
Posts: 306
Likes: 0
From: Houston
Default Headlight Problem...

I have a 98 Z28, for some reason my headlights wont turn on, fog lights still work though. Anyone know what could be wrong? I have tried searches and I have yet to find someone with this problem
Reply
Old Jul 11, 2010 | 05:55 PM
  #2  
owlpuff's Avatar
Staging Lane
 
Joined: Feb 2010
Posts: 92
Likes: 0
From: Virginia Beach, VA
Default

dont want to be a turd, did you check both the bulbs and the plugs to the bulbs?, unplug it and see if it's fried
Reply
Old Jul 11, 2010 | 06:06 PM
  #3  
Storm Trooper's Avatar
Thread Starter
TECH Apprentice
15 Year Member
Photogenic
iTrader: (11)
 
Joined: Dec 2009
Posts: 306
Likes: 0
From: Houston
Default

bulbs and wiring is fine...
Reply
Old Jul 11, 2010 | 06:31 PM
  #4  
cfallsguy's Avatar
TECH Regular
iTrader: (1)
 
Joined: Nov 2009
Posts: 479
Likes: 0
From: FL
Default

Any other symptoms from anything or just headlights?
Reply
Old Jul 11, 2010 | 06:35 PM
  #5  
owlpuff's Avatar
Staging Lane
 
Joined: Feb 2010
Posts: 92
Likes: 0
From: Virginia Beach, VA
Default

If you done any mods, gotta be careful with the ground wires on alot of things. I accidentally knocked the ground wire of my buddy's rear tail light, the wire was no where near the light so took awhile to figure out why his rear tail light stopped working, traced the ground wire, saw it wasnt bolted to body, re-bolted, and problem solved
Reply
Old Jul 11, 2010 | 09:42 PM
  #6  
WhiteBird00's Avatar
Ungrounded Moderator
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (4)
 
Joined: Nov 2003
Posts: 11,332
Likes: 347
From: Jacksonville, FL (originally from Toronto Canada)
Default

Do the high beams work? If so, you know that the problem is between the headlight dimmer switch and the headlights. If not, it could be ground but each side has an independent ground so that is unlikely unless you removed the radiator recently (the two grounds are on opposite sides of the radiator). Do the automatic headlights work but not when manually switched (or vice versa)? That will tell you if the headlight switch could be the problem. There's also the possibility that it's the fusible link under the hood but you would have to have one hell of a short to make that burn out.
Reply
Old Jul 11, 2010 | 09:51 PM
  #7  
SparkyJJO's Avatar
TECH Senior Member
15 Year Member
Photogenic
Liked
Loved
iTrader: (11)
 
Joined: Aug 2007
Posts: 7,364
Likes: 85
From: Ohio
Default

Also could check the headlight relay. The one in my sister in-law's old SUV broke, and caused that to happen. I would start doing a trace with a tester - getting power to the headlight switch, to the relay (both feed and signal), etc.
Reply
Old Jul 12, 2010 | 09:39 AM
  #8  
WhiteBird00's Avatar
Ungrounded Moderator
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (4)
 
Joined: Nov 2003
Posts: 11,332
Likes: 347
From: Jacksonville, FL (originally from Toronto Canada)
Default

There is no relay in f-body headlight systems.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

 Brett Foote
story-1

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-2

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-3

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-4

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-5

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-6

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-7

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-8

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-9

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
Old Jul 12, 2010 | 10:41 AM
  #9  
Storm Trooper's Avatar
Thread Starter
TECH Apprentice
15 Year Member
Photogenic
iTrader: (11)
 
Joined: Dec 2009
Posts: 306
Likes: 0
From: Houston
Default

High beams dont work and I believe the previous owner disabled the automatic headlights, they can only be turned on by the switch.
Reply
Old Jul 12, 2010 | 05:46 PM
  #10  
SparkyJJO's Avatar
TECH Senior Member
15 Year Member
Photogenic
Liked
Loved
iTrader: (11)
 
Joined: Aug 2007
Posts: 7,364
Likes: 85
From: Ohio
Default

Originally Posted by WhiteBird00
There is no relay in f-body headlight systems.
Oh, I thought there was. You mean all that current goes through the switch? Geez....
Reply
Old Jul 12, 2010 | 05:56 PM
  #11  
Storm Trooper's Avatar
Thread Starter
TECH Apprentice
15 Year Member
Photogenic
iTrader: (11)
 
Joined: Dec 2009
Posts: 306
Likes: 0
From: Houston
Default

I took my car to a shop today and they fixed it, apparently some switch was messed up and they ended up having to take off the whole dash to get to it! Didnt really want to spend $150 on that but I had to because my inspection is due this month... Thanks for the suggestions guys.
Reply
Old Jul 13, 2010 | 07:42 AM
  #12  
WhiteBird00's Avatar
Ungrounded Moderator
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (4)
 
Joined: Nov 2003
Posts: 11,332
Likes: 347
From: Jacksonville, FL (originally from Toronto Canada)
Default

Originally Posted by SparkyJJO
Oh, I thought there was. You mean all that current goes through the switch? Geez....
Yeah, it seems strange that they would route all the headlight power through the switch and yet use a relay for the foglights but that's what they did.
Reply




All times are GMT -5. The time now is 07:26 PM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-1
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-2
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-3
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-4
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-5
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-6
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-7
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-8
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-9
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE