• Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech

Speedo works, the slowly stops working....

  • Thread starter Thread starter BlackFox5.0
  • Start date Start date Mar 24, 2004

BlackFox5.0

Founding Member
Aug 7, 2000
3,514
1
0
Massachusetts
Mar 24, 2004
#1
  • Mar 24, 2004
  • #1
I noticed when I am going like above 40mph, that after cruising for a while, the needle slowly comes down, like I am slowing down, but I am going the same speed.

For example I went on a decent trip, and the needle slowly dropped, to where it said I was doing like 30mph at 65mph, then eventually I was doing 0mph at 65....I had to use my tach to tell my speed.

After the car sits, the needle will work again when I drive it. Oh yeah it still counts miles when it stops working on the highway, so the cable IS spinning.

I did a white face gauge swap, but knowing hoe the internals work off of magnets, I'm kinda confused as to why it's not working like normal.
 
You must log in or register to reply here.

Similar threads

M
1996 GT Speedometer electrical nightmare
  • moon96gt
  • Oct 7, 2026
  • SN95 4.6L Mustang Tech
Replies
2
Views
147
SN95 4.6L Mustang Tech Oct 17, 2026
CAMTWO1070
B
Electrical Why does my fox body keep frying eecs
  • brandyn200
  • Jun 20, 2026
  • Fox 5.0 Mustang Tech
Replies
8
Views
443
Fox 5.0 Mustang Tech Jun 25, 2026
AeroCoupe
Removing speedo cable from the VSS
  • 91AOD5.0LX
  • Mar 25, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 2
Replies
27
Views
1K
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Apr 25, 2026
91AOD5.0LX
E
2007 GT Stalls when lights or a/c turned on
  • ejscarfo
  • Jun 22, 2026
  • 2005 - 2009 Specific Tech
Replies
3
Views
316
2005 - 2009 Specific Tech Sep 26, 2026
manicmechanic007
J
'96 Cobra: A/C gets weak and engine misfires under load when warm
  • jruhnke
  • Oct 22, 2025
  • SVT Tech Forum
Replies
2
Views
430
SVT Tech Forum Nov 20, 2025
nickyb
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?