4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

Gauges Max Out at Start

Old 12-31-2006, 02:40 PM
  #1  
jmac72187
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Default Gauges Max Out at Start

Lately ever since I the problem with car car started which I think is the alternator, Every time I start my car the gauges max out like I reset the computer.

What could be causing this? Is is because my alternator is bad and the computer is resetting?
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Old 12-31-2006, 02:47 PM
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2000GT4.6
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Default RE: Gauges Max Out at Start

It doesn't sound like the alternator. If it was, the battery would be dead and it would not stay running after a jump.

Sounds like somehow you are loosing the constant power supply to the computer. Are the preset radiobutton reseting?
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Old 12-31-2006, 02:56 PM
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Brute03
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Default RE: Gauges Max Out at Start

sounds like a bad ground to me, first thing i would check are the terminals, make sure they're clean and tight.
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Old 12-31-2006, 03:01 PM
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jmac72187
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Default RE: Gauges Max Out at Start

My battery did die. That is the thing. I have run it about 5 times in the last 3 weeks since its been off the road. The battery died now. I am guessing this is the alternator.
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Old 12-31-2006, 03:21 PM
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ackuric
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Default RE: Gauges Max Out at Start

you replace the battery? or just charge it? I would guess battery. When this happened to me, I had the battery tested, it failed, I replaced it, problem solved. G/L

If you can, get the battery tested, if its good, then I'd go to the alternator.
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