1973 - 1979 F-100 & Larger F-Series Trucks Discuss the Dentsides Ford Truck
Sponsored by:
Sponsored by: Moser

Instrument Lights Not Working

Thread Tools
 
Search this Thread
 
  #1  
Old 10-17-2013, 05:24 PM
ngupton12's Avatar
ngupton12
ngupton12 is offline
New User
Thread Starter
Join Date: Sep 2013
Posts: 19
Likes: 0
Received 0 Likes on 0 Posts
Instrument Lights Not Working

Good evening,
I pulled my instrument cluster and replaced the lights behind it, hooked it all back up today and pulled the light switch and nothing comes on the only thing that still works are my headlights, brake lights and blinkers. Just wondering if I fried something or just did not seat the pig tail correctly that goes to the cluster back together any suggestions or thoughts would be appreciated.
Thanks in advance.
 
  #2  
Old 10-17-2013, 06:56 PM
fmc400's Avatar
fmc400
fmc400 is offline
MSEE
Join Date: Apr 2004
Location: Austin, TX
Posts: 10,386
Likes: 0
Received 22 Likes on 18 Posts
Turn the dash lights to where they would otherwise be ON, then measure the voltage on BOTH sides of the dash illumination fuse. Report your results.
 
  #3  
Old 10-18-2013, 05:27 PM
ngupton12's Avatar
ngupton12
ngupton12 is offline
New User
Thread Starter
Join Date: Sep 2013
Posts: 19
Likes: 0
Received 0 Likes on 0 Posts
Good evening,
Drove to a buddies house, battery died, jumped it turned on my lights and everything came on... Weird. Read something about a voltage regulator for the instrument cluster. Not sure if I am crazy or if that is a real thing. I have already replaced the voltage regulator under the hood so wasnt sure if there was two.
Thank you.
 
  #4  
Old 10-18-2013, 06:03 PM
fmc400's Avatar
fmc400
fmc400 is offline
MSEE
Join Date: Apr 2004
Location: Austin, TX
Posts: 10,386
Likes: 0
Received 22 Likes on 18 Posts
I don't understand what you're asking. Your next response to me was supposed to be two voltage measurements, but I don't see anything along those lines. So you're saying the lights come on now, and there's no reason to take any measurements and troubleshoot the problem any further?

If that's the case, it sounds like there isn't a problem anymore, right? Then what does the instrument cluster voltage regulator have to do with any of this? Yes there is such a thing, but it has nothing to do with dash lights, or a dead battery. Are you asking if this piece has anything to do with the lights not working in the past, or the battery dying? The answer is no, and no. I don't really understand what you're asking, if you're asking anything. There isn't an actual question in your last post, just a series of seemingly unrelated statements.

Not trying to sling you out here, but you're the one that should be asking the questions, not me. The less guess work I have to do, the better I can help you.
 
  #5  
Old 10-18-2013, 06:06 PM
tylert1976's Avatar
tylert1976
tylert1976 is offline
Senior User
Join Date: Nov 2012
Posts: 183
Likes: 0
Received 0 Likes on 0 Posts
There is an instrument voltage reg. Before you replace it, perform the test fmc suggested. He knows his shtuff.
http://i.ebayimg.com/t/NEW-71-79-FORD-CAR-71-86-TRUCK-INSTRUMENT-CLUSTER-GAUGES-VOLTAGE-REGULATOR-/00/s/MTIwMFgxNjAw/z/BPoAAMXQVhFR9roP/$(KGrHqNHJB8FHY!w4sheBR9roPeSRw~~60_35.JPG

This link will show you what it looks like. Copy and paste it into a new window.
 
  #6  
Old 02-14-2014, 12:44 PM
grumpyjo's Avatar
grumpyjo
grumpyjo is offline
New User
Join Date: Jan 2014
Posts: 21
Likes: 0
Received 0 Likes on 0 Posts
Instrument lights do not work

Where is the instrument cluster votage regulator located?
 
  #7  
Old 02-14-2014, 12:46 PM
fmc400's Avatar
fmc400
fmc400 is offline
MSEE
Join Date: Apr 2004
Location: Austin, TX
Posts: 10,386
Likes: 0
Received 22 Likes on 18 Posts
It's on the back of the instrument cluster, secured by a single hex screw.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Mike1
1999 to 2016 Super Duty
3
10-10-2017 03:51 PM
radical_reabster
1973 - 1979 F-100 & Larger F-Series Trucks
5
07-17-2017 11:21 PM
Flyinggunz
1997-2006 Expedition & Navigator
2
12-10-2015 07:08 AM
Ranger-go-Boom
1983 - 2012 Ranger & B-Series
12
11-21-2005 10:58 AM



Quick Reply: Instrument Lights Not Working



All times are GMT -5. The time now is 10:42 AM.