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  • SN95 4.6L Mustang Tech

Gauges Maxing out at Startup

  • Thread starter Thread starter LouisianaZJ
  • Start date Start date May 31, 2009

LouisianaZJ

Member
Feb 13, 2004
237
0
17
May 31, 2009
#1
  • May 31, 2009
  • #1
Last time I fired up the GT, the speedo & RPM gauges both maxed out, went to zero, then went to actual reading.

I have started it up since then, and all was normal again.

What is going on here?
 

V_Eight

Founding Member
Sep 5, 2002
617
1
0
ATL
May 31, 2009
#2
  • May 31, 2009
  • #2
That happens if you reset the computer by unhooking the battery for a set number of minutes. Why it randomly happened to you I do not know.
 

LouisianaZJ

Member
Feb 13, 2004
237
0
17
May 31, 2009
#3
  • May 31, 2009
  • #3
I read this may also be due to a dying battery. The wierd thing is I just recharged the battery (trickle) about 3 weeks ago.

I will double check the cables at the battery
 
B

blubullett

Member
Jun 22, 2006
535
6
18
Modesto, CA
May 31, 2009
#4
  • May 31, 2009
  • #4
Mine does it if my battery is low or one of the terminals is loose or something.
 

joshjwc9

Active Member
Jun 12, 2006
1,095
17
39
Palm Harbor, FL
May 31, 2009
#5
  • May 31, 2009
  • #5
The batteries cold start abilities are starting to go down the toilet. I am guessing it is probably kind of old, or you have something that has a substantial draw on it, like a sound system.. etc.

Go buy a new one before you resort to daily jumps and hoping it will start. I would bet that the car feels as though it starts faster as soon as you replace it.
 

Rusty67

20+ Year Stangneter
Dec 3, 2002
3,749
37
109
LA, CA
May 31, 2009
#6
  • May 31, 2009
  • #6
joshjwc9 said:
The batteries cold start abilities are starting to go down the toilet. I am guessing it is probably kind of old, or you have something that has a substantial draw on it, like a sound system.. etc.

Go buy a new one before you resort to daily jumps and hoping it will start. I would bet that the car feels as though it starts faster as soon as you replace it.
Click to expand...

This sounds right on the money to me. Its a warning when the gauges do that to let you know to replace the battery. The other gauges should be doing it as well, oil, fuel, temp, ect.
 

Kraw

Nail On The Head El Moderatoro
Founding Member
Nov 29, 1999
0
2
49
ATL via MSY via MLU via Pitkin, La
Jun 3, 2009
#7
  • Jun 3, 2009
  • #7
ditto.. It was an earlier indicator my batt was dieing. Had to change it a few weeks later
 
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