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

Dead tach and no backlight

  • Thread starter Thread starter bonestock87
  • Start date Start date Nov 14, 2008

bonestock87

Founding Member
Dec 19, 2001
732
12
38
Cape Coral, FL
Nov 14, 2008
#1
  • Nov 14, 2008
  • #1
I posted this in the 4-banger section, being that it's on a 4-banger, but there's a ton more traffic here and the problem, I don't think, is 2.3 or 5.0 specific. Thanks! :

My tach sits with the needle pointed at 6,000 rpm whether the egine is running or not and there's no backlight behind it. Where should I start checking to see what's wrong? I don't know if this is related, but there's an unplugged sensor hanging down next to the transmission and I haven't figured out where it plugs in. It seems like it's coming from the engine bay.
 

bonestock87

Founding Member
Dec 19, 2001
732
12
38
Cape Coral, FL
Nov 17, 2008
#2
  • Nov 17, 2008
  • #2
Anyone?
 

93 LX

Founding Member
Jun 2, 2000
3,081
3
0
Norwalk, CA.
Nov 17, 2008
#3
  • Nov 17, 2008
  • #3
Your tachs bad. Get a new one or one from the boneyard. You have a burnout light or lights behind the tach. 2 problems one fix. When you pull the gauge cluster you can replace the lights and tach.
 

riceslayer302

Banned
Oct 3, 2006
0
1
0
CT
Nov 17, 2008
#4
  • Nov 17, 2008
  • #4
check the ground.
 
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