gauges go out

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Nov 19, 2009 | 02:29 PM

JB36

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gauges go out

I have an 02 F250 7.3PSD. Intermittently while driving all my gauges will go out , speedo, tach, temp, etc. Then I will hear aa click under the dash and they will reset. At night when this happens my headlights will dim and come back to full brightness. I had my alternator checked and it was 14.2V. It seems to happen more when cold. Any ideas.

Nov 19, 2009 | 05:48 PM

Franklin2

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From: Virginia

It's probably going to be a alternator problem or a battery problem. Wacky gauges on late models always seem to be something with the charging system. Clean the battery cables and try that.

Nov 20, 2009 | 12:28 AM

JB36

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Thanks I'll give that a try

Nov 20, 2009 | 01:26 PM

BPofMD

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From: Millersville, MD

14.2 seems a little HIGH to me...thought 13.6 - 13.7 was the voltage at hi-rpm. Sounds like the computer trying to save your electrical system. Regulator (inside of alternator) is BAD!

What is voltage at the battery? With and without engine running.