Confused Gauges - Mustang Evolution

Go Back   Mustang Evolution > 4 Cylinder | V6 | Classic Mustangs || Tech and Talk > Pre-2005 V6 Mustang



Reply
 
Thread Tools Search this Thread
Please support our sponsors and let them know you heard about them here!
Old 08-31-2012, 11:22 PM   #1
Registered Member
Regular
 
Join Date: Aug 2012
Region: Georgia
Posts: 139
Confused Gauges

Hey there guys... I have a 1994 Ford Mustang V6 that has the gauge cluster lights go off a lot and then come on sporadically. I am not sure what is going on. This cannot be the bulbs, so I am not sure what it is. The gauge cluster will be off at night and then they come on all of a sudden.

Any ideas would be greatly appreciated...
devanslive is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 08-31-2012, 11:31 PM   #2
Registered Member
Regular
 
maldog's Avatar
 
Join Date: Jun 2012
Region: Nevada
Posts: 1,563
Re: Confused Gauges

It sounds like your gauge rheostat is going bad. Time to replace it
__________________
2006 Mustang GT Premium RedFire. CAI, SLP Loudmouth, SCT Progammer, 5 speed manual trans. My other car is a CORVETTE!
maldog is offline   Reply With Quote
Old 08-31-2012, 11:36 PM   #3
Registered Member
Regular
 
Join Date: Aug 2012
Region: Georgia
Posts: 139
Re: Confused Gauges

Quote:
Originally Posted by maldog View Post
It sounds like your gauge rheostat is going bad. Time to replace it
Okay... That is new to me. What is a rheostat and is it an easy fix?
devanslive is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 08-31-2012, 11:51 PM   #4
Registered Member
Regular
 
maldog's Avatar
 
Join Date: Jun 2012
Region: Nevada
Posts: 1,563
Re: Confused Gauges

Quote:
Originally Posted by devanslive View Post
Okay... That is new to me. What is a rheostat and is it an easy fix?
The rheostat is what makes your cluster gauge lights brighten and dim by moving the small wheel or it's integrated on your headlight pull switch. I can't remember on the 94 model? It's a ceramic part that has a spring on it and usually the springs get corroded and the lights will come on and off whenever they want.

The problem you might have is finding a new one at a auto parts store due to the age. You might have to try and find a good one at a pick a part. They are not hard to replace.

This is a common problem with the old style lighting.
__________________
2006 Mustang GT Premium RedFire. CAI, SLP Loudmouth, SCT Progammer, 5 speed manual trans. My other car is a CORVETTE!
maldog is offline   Reply With Quote
Old 09-01-2012, 05:04 AM   #5
Registered Member
Regular
 
Join Date: Aug 2012
Region: Georgia
Posts: 139
Okay. Thanks for that bit of insight.
devanslive is offline   Reply With Quote
Old 09-01-2012, 06:25 AM   #6
Registered Member
Regular
 
9tee7pony's Avatar
 
Join Date: Jun 2012
Location: Radford
Region: Virginia
Posts: 673
Or you could get a reverse glow gauge insert. You're going to have to take that part of the dash apart either way.
What a rheostat actually is, is a variable resistor. In case you don't know what a resistor does, it impedes the voltage in an electrical circuit in order to make the voltage drop to what is needed for that application. The rheostats are typically used in dimmer switches and volume knobs. Not so much today though since most of it is controlled by a computer.
You might find luck finding a new one on latemodelrestoration.com or something like that.
9tee7pony is offline   Reply With Quote
Old 09-01-2012, 12:39 PM   #7
Registered Member
Regular
 
Join Date: Aug 2012
Region: Georgia
Posts: 139
Would a reverse glow insert remove the need to replace that part?
devanslive is offline   Reply With Quote
Old 09-01-2012, 02:17 PM   #8
Registered Member
Regular
 
9tee7pony's Avatar
 
Join Date: Jun 2012
Location: Radford
Region: Virginia
Posts: 673
Quote:
Originally Posted by devanslive
Would a reverse glow insert remove the need to replace that part?
Yes it does because it comes with its own and then the one that you use now controls the needle, odo, clock, radio and ac control brightness. The only problem with the reverse glow gauges is that they tend to make the needles get stuck.
9tee7pony is offline   Reply With Quote
Old 09-01-2012, 03:03 PM   #9
Registered Member
Regular
 
Join Date: Aug 2012
Region: Georgia
Posts: 139
So it would be less expensive to go with that option. From what I have seen they are not terribly hard to install.
devanslive is offline   Reply With Quote
Old 09-01-2012, 05:55 PM   #10
Registered Member
Regular
 
9tee7pony's Avatar
 
Join Date: Jun 2012
Location: Radford
Region: Virginia
Posts: 673
Quote:
Originally Posted by devanslive
So it would be less expensive to go with that option. From what I have seen they are not terribly hard to install.
It was like $45 and you must put the ground wire on a screw on the fuse box under the dash. Took me awhile to figure that out.
9tee7pony is offline   Reply With Quote
Old 09-01-2012, 06:09 PM   #11
Registered Member
Regular
 
Join Date: Aug 2012
Region: Georgia
Posts: 139
Re: Confused Gauges

Quote:
Originally Posted by 9tee7pony View Post
It was like $45 and you must put the ground wire on a screw on the fuse box under the dash. Took me awhile to figure that out.
Oh okay... On the instructions I read it said to put the ground on the chassis. So it goes on the fuse box...? Cool, thank you!!!
devanslive is offline   Reply With Quote
Old 09-01-2012, 08:13 PM   #12
Registered Member
Regular
 
9tee7pony's Avatar
 
Join Date: Jun 2012
Location: Radford
Region: Virginia
Posts: 673
Quote:
Originally Posted by devanslive
Oh okay... On the instructions I read it said to put the ground on the chassis. So it goes on the fuse box...? Cool, thank you!!!
I didnt have anything to drill into the chassis and I found out that the fuse box is the easiest way
9tee7pony is offline   Reply With Quote
Old 09-09-2012, 05:10 PM   #13
Registered Member
Regular
 
Join Date: Aug 2012
Region: Georgia
Posts: 139
Isn't the fuse box plastic? The wire does not look like it will reach under the dash. Also, where do the three prongs go? It is not listed anywhere in the directions.
devanslive is offline   Reply With Quote
Reply

Lower Navigation
Go Back   Mustang Evolution > 4 Cylinder | V6 | Classic Mustangs || Tech and Talk > Pre-2005 V6 Mustang

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off


» Like Us On Facebook



06:44 PM


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0

MustangEvolution.com is in no way associated with or endorsed by Ford Motor Company.